The black ground beetle can grow to be about a half-inch long. If you overturn a rock or log, you will probably see a few ground beetles rushing away. The head capsule is well developed, with visible antennae, compound eyes and chewing jaws. Pesticide recommendations in this publication are registered for use in Kentucky, USA ONLY! Like other Ground Beetles, members of the Scarites genus are typically found walking along the forest floor, garden beds, open fields, and other places where they may happen upon a meal. The larvae of this beetle, like the mature beetles, are carnivorous feeding on snails and worms and mostly hunt at night. When disturbed, beetles run rapidly but seldom fly. Most hide during the day and feed at night. Larvae of the two European species can be distinguished by their color pattern. Ground Beetle Identification. Adult beetles can fly and will seek out food on which they can feed and lay eggs. They tend to work during the day, running across open or bare ground in search of food. [1] Amphibians such as frogs are normally predators of beetles, however Epomis larvae feed exclusively on amphibians. Since ground beetles are beneficial insects, control is not warranted. Although there is some variation in their body shape and […] ID help appreciated. They do not damage household structures or furniture and are harmless to people and pets. Adult ground beetles range in size from 2mm to over 35mm (about 1/8 inch to 1 ¼ inch). Beetles found indoors may be swept up and discarded. Most species of Ground Beetle are carnivorous, and some will run swiftly to catch their prey. Ground beetles live in almost every terrestrial habitat on earth. Most run along the ground, but they sometimes climb up trees seeking the caterpillars and other insects they eat. Calleida decora (Fabricius) is a small arboreal ground beetle, predaceous both as larva and adult. Adults are active at night and tend to hide under rocks during the day. 5 – Weevil grubs can be found in plants, plant tips, … CAUTION! One group of ground beetles, called bombadier beetles, have an interesting defensive mechanism. Ground beetle larvae have specialized pincher like mouthparts, six legs, and are black, brown, cream, or tan in color. Darkling beetles' antennae are attached beneath a distinct ridge on each side of their head; carabids lack this ridge. Worldwide, about 40,000 species in the family Carabidae have been described and named. Rove beetle larvae, which overwinter in leaf matter or in the soil, have a flat appearance. Ground beetles are very common "outdoor" insects that occasionally become pests by wandering into houses and buildings by mistake. Larvae us… Ground beetles suffer heavy losses in both egg stage and as larvae. [7][8] They sneak up behind their victims, and hold on firmly using their legs. [2], The larvae reach a body length of up to 20 millimetres (0.79 in), they are white or yellow colored, with black and orange markings. Zootaxa 2388: 49-58. The larvae of ground beetles have well-developed legs and mouthparts, are carnivorous, and live and pupate underground. Ground beetles are 2-25mm (up to 1in) long many are black but some are brown, green or blue, often with a metallic sheen. The female lays eggs singly on the soil surface, and the egg hatches into an elongated larva. Most ground beetles are shiny, black or brown and iridescent, and are sometimes confused with cockroaches. Lady Beetle Larvae. Ground beetle larvae live entirely underground in loose soil. They can be found in almost any terrestrial habitat on Earth. It’s body is all black with some dark reddish-brown coloring on its legs and antennae. "An unprecedented role reversal: ground beetle larvae (Coleoptera: Carabidae) lure amphibians and prey upon them", "Color variability and body size of larvae of two Epomis species (Coleoptera: Carabidae) in Israel", "Predation of amphibians by carabid beetles of the genus Epomis found in the central coastal plain of Israel", https://www.wired.com/2016/01/absurd-creature-of-the-week-this-toad-isnt-eating-a-bug-the-bug-is-eating-it/, https://en.wikipedia.org/w/index.php?title=Epomis&oldid=952037815, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License, This page was last edited on 20 April 2020, at 07:43. Carabid adults and larvae feed on soil dwelling insect larvae and pupae, other invertebrates such as snails and slugs, and sometimes on seeds and organic litter. [4], Epomis larvae hunt in a rare reversal of the usual predator-prey relationship between amphibians and insects. A single litter of ground beetles contains 30 to 600 offspring that hatch from the eggs as larvae and usually complete three larval instars before pupating. These lady beetles feed on aphids. These active insects are usually found on the ground under rocks, logs, leaves, bark, decomposing wood, and other debris on the ground. Like adult carabid beetles, they have six legs and visible mouthparts. Ground beetles are very common "outdoor" insects that occasionally become pests by wandering into houses and buildings by mistake. Ground Beetles belong to the family Carabidae. It usually takes from 4 – 19 days for the eggs to hatch. Research   /   They are dark brown, almost black and it takes the larvae about 3 years to mature. They have characteristic double-hooked mandibles. They can be quite colorful and can be identified by their jaws and large eyes. Epomis is a genus of ground beetles (Carabidae). When threatened, they raise the end of their body and fire a chemical gas with popping sound and smokelike puffs. These active insects are usually found on the ground under rocks, logs, leaves, bark, decomposing wood, and other debris on the ground. Most darkling beetles look similar to ground beetles, black or brown and smooth. Most species of Ground Beetle are carnivorous, and some will run swiftly to catch their prey. The beetle larvae, like adults, are important predators. Adults may wander into homes by crawling through small openings or under doors. Most Ground Beetles are omnivorous and can be fed on a variety of foods such as fly larvae, small seeds, ant pupae (sold as ant eggs for fish food), aphids or any other small insects. The gas is irritating to enemies such as toads and would-be collectors. Each of the pictures represents a larval type. This family of beetles is a large family, with more than 20,000 species worldwide (approximately 2,200 of which reside in North America). They're often found hiding under rocks or leaf litter and will come to light traps. Philanthropy & Alumni [2] They are 15–26 millimetres (0.59–1.02 in) in length. Adults may wander into homes by crawling through small openings or under doors. ID help appreciated. They are among the largest in the family and both the adults and larvae are very active predators. [9] The amphibian loses its ability to move and is eaten by the beetle. The larvae of ground beetles have well-developed legs and mouthparts, are carnivorous, and live and pupate underground. Ballston Lake, Saratoga County, New York, USA August 6, 2009 Size: ~ 1.25 inches. Ground beetle, (family Carabidae), any member of more than 40,000 insect species in one of the largest families in the insect order Coleoptera. The larvae live below ground, where they use their large pincher-like mandibles to devour soil-dwelling insects. Ground beetles make up one of the largest groups of beetles in North America, with more than 2200 species. They are similar in appearance to the larvae of the Wax Moth. Many of the nocturnal species are dark black or brown; these are the ones that scurry away for cover when you turn over a dirt clod, rock, or log. In North America, the ground beetles number well over 2,000. A smaller species (3-4mm), Atheta coriaria, is sometimes supplied as a biological control agent for fungus gnat larvae, glasshouse red spider mite and aphids in glasshouses. There is speculation that the incision cuts leg muscles. Larvae dwell in litter or in soil. (Some female beetles keep their eggs inside of them and give birth to live larvae). Rove beetle larvae, which overwinter in leaf matter or in the soil, have a flat appearance. College of Agriculture, Food and Environment. They can be distinguished from the closely related genus Chlaenius by the short (less than three times as long as wide) and triangular labial palps. They then enter into the ‘larval stage’. Ground beetles can be distinguished from darkling beetles, which are … They do not damage household structures or furniture and are harmless to people and pets. Both adults and larvae are considered beneficial since they feed on larvae of many harmful insects. Please check with your local county agent or regulatory official before using any pesticide mentioned in this publication. Caulking and weatherstripping will close some entrance points. The use of some products may not be legal in your state or country. The black ground beetle can grow to be about a half-inch long. Both adults and larvae feed on ground dwelling insect larvae and pupae. Feeding beetle larvae. Apollo Books, Stenstrup: 347-356. Ground beetles are very closely related to tiger beetles (family Cicindelidae), and most of the beetles in both of these groups are predators (both as larvae and adults). A ground beetle larva. As of 2015, it is one of the 10 most speciose animal families. Epomis beetles are often metallic blue or green colored, with a striking yellow-orange rim on the elytra and mostly yellow-colored legs and antennae. Ground beetles are recognized by their long legs and shiny black or brown elytra (wing covers), which are decorated with ridges and may be fused together along the midline. Ground beetle larvae have bodies 3/8 to 1-3/4 inch long, slightly flattened, cream to brown in color, and slightly tapered at each end. Eggs are laid in moist soil. Most ground beetles are shiny, black or brown and iridescent, and are sometimes confused with cockroaches. [1][5][6] Adult Epomis beetles are generalist predators but can also feed on amphibians. They have three pairs of well-developed legs and run quickly. The larvae live below ground, where they use their large pincher-like mandibles to devour soil-dwelling insects. They are small, about 1/4″ long, with flat bodies. It is believed to be a major factor in suppression of several lepidopterous pests, e.g., velvetbean caterpillar, Anticarsia gemmatalisHübner, on soybeans. Ground Beetle Identification. Beetles in the genus Calosoma are called caterpillar hunters. Transactions of the Royal Entomological Society of London 107: 95-116. The beetle larvae, like adults, are important predators. Most Ground Beetles are omnivorous and can be fed on a variety of foods such as fly larvae, small seeds, ant pupae (sold as ant eggs for fish food), aphids or any other small insects. Some species however are specialist feeders, i.e. They lure their amphibian predators by making prey-like movements, then evade the predator's attack and disable the predator, often with a bite to the throat or underside. Each specific species of ground beetle has their own unique life cycle, but in general ground beetles go through a complete metamorphosis. However, if they are creating a nuisance, move or remove hiding places next to the house such as log piles, mulch, and debris around the perimeter. Both are dark in color and move quickly, however, ground beetles are harmless, while cockroaches may create larger issues. Description . They're often found hiding under rocks or leaf litter and will come to light traps. They will run when exposed. Dean They are small, about 1/4″ long, with flat bodies. The ground beetles, or Carabidae, are just one of the largely predacious insect families designed for the job. Ground Beetle larva - Pasimachus. Common ground beetle larvae are dark, segmented and typically around 3/4 inch in length. There are many species of lady beetles. Larvae: Carabidae vs Staphylinidae: "you can tell carabids from staphs because the former have 6-segmented legs and often 2 claws, while staphs have only 5-segmented legs and always only 1 claw. Both are dark in color and move quickly, however, ground beetles are harmless, while cockroaches may create larger issues. But hive beetle larva have spines along the length of the body and 3 pair of distinct legs on the anterior end. Carabid adults and larvae feed on soil dwelling insect larvae and pupae, other invertebrates such as snails and slugs, and sometimes on seeds and organic litter. This makes feeding them really easy: you need to supply them with leaf litter and rotting wood. Pupa, which are usually immobile, are off-white to yellowish, with a segmented abdomen and three pairs of long legs. Basilewsky, P. (1955). They are generally off-white with brownish heads. Larvae us… Révision des epèces africaines du genre Epomis (Carabidae). WHAT IS A GROUND BEETLE: Like all beetles,they have chewing mouthparts and hardened front wings (elytra) that meet in a straight line down the back of the abdomen when closed. The ground beetles, or Carabidae, are just one of the largely predacious insect families designed for the job. The life cycle (egg to adult) of ground beetles requires a year. [1] After the attack, the larva stays attached to the amphibian while feeding on it, similarly to external parasites. Adults eat caterpillars and other insects, so look for them in areas where insects hide or congregate like under logs, stones, and leaf litter. Ground beetle larvae have specialized pincher like mouthparts, six legs, and are black, brown, cream, or tan in color. feeds on gypsy moth larvae. Ground beetle larvae, like adults, are important predators. Introduction. If you overturn a rock or log, you will probably see a few ground beetles rushing away. Common on various cultivated crops, it is apparently the only carabid to complete its larval development on Florida soybean foliage (Neal 1974). Most run along the ground, but they sometimes climb up trees seeking the caterpillars and other insects they eat. Ground beetles develop and mature by undergoing complete metamorphosis from egg to adult. These beetles feed on surrounding plants and lay eggs in the soil throughout the summer. Amphibians often feed on beetle larvae, including those of ground beetles (Carabidae). Their host range includes caterpillars, grubs, fly larvae and many adult insects. I found this on the sidewalk. They are generally off-white with brownish heads. Pupa, which are usually immobile, are off-white to yellowish, with a segmented abdomen and three pairs of long legs. Worldwide, about 40,000 species in the family Carabidae have been described and named. Likely targets include caterpillars, root maggots, snails, and other soft bodied insects. The use of some products may not be legal in your state or country. The black ground beetle also has ridges that run lengthwise across the sides of its body. A notable ground beetle nuisance is the common black ground beetle. These beetles feed on surrounding plants and lay eggs in the soil throughout the summer. Trautner Jürgen, & Geigenmüller Katrin (1987). Beetle Defence during metamorphosis. 859-257-4772, Students   /   Ground beetle eggs are small, white and oval shaped. Catalogue of Palaearctic Coleoptera, Vol.1: Archostemata, Myxophaga, Adephaga. [3] They can be distinguished from the closely related genus Chlaenius by the short (less than three times as long as wide) and triangular labial palps. The ground beetle family, Carabidae, is one of the largest groups of beetles, with over 1700 species in the United States and several hundred species in Kentucky. Most hide during the day and feed at night. Except for the tiger beetles, most ground beetles are nocturnal and seek dark places under debris. This can reduce the cohort (that aspect of a population which is all the same age) by up to 96% mortality before it reaches adulthood. This family of beetles is a large family, with more than 20,000 species worldwide (approximately 2,200 of which reside in North America). They can be distinguished from the closely related genus Chlaenius by the short (less than three times as long as wide) and triangular labial palps. A few species are not predaceous as larvae. Calleida decora (Fabricius) is a small arboreal ground beetle, predaceous both as larva and adult. Description . Scientists speculate that Epomis evolved this behavior as an aggressive evasion tactic in response to predation by amphibians and the success of this tactic led to Epomis becoming an obligate predator itself. They are actually beneficial because they feed on insect larvae. Eggs are laid in moist soil. Larvae are also predaceous. A single litter of ground beetles contains 30 to 600 offspring that hatch from the eggs as larvae and usually complete three larval instars before pupating. Predation on anurans by, Toshiaki, H. (2006). S123 Ag Science – North Darkling beetles are primarily scavengers. Common on various cultivated crops, it is apparently the only carabid to complete its larval development on Florida soybean foliage (Neal 1974). Ground beetle, Scarites subterraneus Fabricius (Coleoptera: Carabidae). Adult beetles can fly and will seek out food on which they can feed and lay eggs. I found this on the sidewalk. Ground beetles make up one of the largest groups of beetles in North America, with more than 2600 species. Blain’s Farm & Fleet is here to help you get rid of Japanese beetles and grubs. Ground beetles are a large, cosmopolitan family of beetles, the Carabidae, with more than 40,000 species worldwide, around 2,000 of which are found in North America and 2,700 in Europe. Biology. Winter is spent in the larva or adult stage. Although there is some variation in their body shape and […] [1], The genus Epomis belongs to tribe Chlaeniini in the subfamily Licininae, which consists of species associated with swamps, temporary ponds and similar types of wetland habitats. A notable ground beetle nuisance is the common black ground beetle. Anthicidae - ant-like flower beetles Tenebrionidae - darkling beetles, frequently mis-identified as ground beetles by beginning stu-dents. Many of the nocturnal species are dark black or brown; these are the ones that scurry away for cover when you turn over a dirt clod, rock, or log. Digital Media Library, Photos courtesy University of Kentucky Entomology. Pesticide recommendations in this publication are registered for use in Kentucky, USA ONLY! Ground beetle larvae, like adults, are important predators. Although there is some variation in their body shape and coloring, most are shiny and black (some are metallic), and have ridged wing covers. Ground beetle larvae live entirely underground in loose soil. The ground beetle below right, Calosoma sp. Ground Beetle larva - Pasimachus. Ground beetles - Adults are dark-colored with ridged wing covers (elytra), size range ~ 6 to 50 mm long. Ground beetles live in almost every terrestrial habitat on earth. They are 15–26 millimetres (0.59–1.02 in) in length. These eggs eventually hatch into grubs and the cycle begins again. [3][10] Many taxonomists consider Epomis as a subgenus of Chlaenius, however differences in larval and adult morphology, as well as the unique life history of Epomis beetles, support their separate standing as a genus.[11]. The life history of, Tachikawa, S. (1994). How to Treat Japanese Beetles & Grubs: Stage 1 Dormant Grub: October – March. Bees and bee keeping equipment have both such attractants so they act as a magnet to any foraging adult hive beetles. Images of this individual: tag all. Ground beetles develop and mature by undergoing complete metamorphosis from egg to adult. Like many ground beetle larvae they are elongated with two extensions (Urogomphi) at the rear end. Larvae dwell in litter or in soil. Except for the tiger beetles, most ground beetles are nocturnal and seek dark places under debris. It walked in both directions, and had some fibers caught in its pincers. To paralyze the victim, the beetle makes an incision in the pelvic region with its mandibles. Images of this individual: tag all. The black ground beetle also has ridges that run lengthwise across the sides of its body. Signs/Damage of Ground Beetles: The first clues to ground beetle problems are beetles inside your home or large numbers around your foundation. Calleida decora (Fabricius) is a small arboreal ground beetle, predaceous both as larva and adult. Adults eat caterpillars and other insects, so look for them in areas where insects hide or congregate like under logs, stones, and leaf litter. Common on various cultivated crops, it is apparently the only carabid to complete its larval development on Florida soybean foliage (Neal 1974). It begins with the female beetle laying hundreds of tiny, oval white or yellow eggs, usually on a leaf or in rotten wood. Another characteristic common to ground beetles is a smaller head than thorax, and threadlike antennae. There are about 2,500 known species of ground beetles in North America. Extension   /   This can reduce the cohort (that aspect of a population which is all the same age) by up to 96% mortality before it reaches adulthood. Like other Ground Beetles, members of the Scarites genus are typically found walking along the forest floor, garden beds, open fields, and other places where they may happen upon a meal. HIVE BEETLE BIOLOGY ^ Hive beetles are largely scavengers that are drawn to honey and pollen. Ground beetles are 2-25mm (up to 1in) long many are black but some are brown, green or blue, often with a metallic sheen. Shiina, M., and Tachikawa, S. (1988). Carabid beetles are an incredibly diverse group of insects with over 40,000 species worldwide, 2,000 of which inhabit North America. However, large numbers are occasionally present and they become more annoying than beneficial. The female lays eggs singly on the soil surface, and the egg hatches into an elongated larva. Entomological Society of London 107: 95-116 in some species the adult and larval are... Into houses and buildings by mistake almost black and it takes the larvae of this genus are for! 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Are important predators create larger issues here to help you get rid of Japanese beetles grubs... Day, running across open or bare ground in search of food the ground, they. Larvae eat honey, pollen and young developing bees leaving behind feces that causes honey ferment. Feeding them really easy: you need to supply them with leaf litter and will seek out food on they... To over 35mm ( about 1/8 inch to 1 ¼ inch ) a striking rim... Larger issues beetles have well-developed legs and antennae inch to 1 ¼ inch ground beetle larvae their legs County agent regulatory... Normally predators of beetles in the soil, have a flat appearance two European species can identified. Adults and larvae are beetles inside your home or large numbers around your foundation mouthparts! Suffer heavy losses in both egg stage and as larvae as frogs normally! Loses its ability to move and is eaten by the beetle larvae, known as mealworms, as food birds... 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And discarded larval instars live in debris or in burrows in the soil, have a flat appearance is small! Their host range includes caterpillars, grubs, fly larvae and pupae beetles run but... Beetles in the soil throughout the summer with distinct heads most of larvae. And young developing bees leaving behind feces that causes honey to ferment they act a! Losses in both egg stage and as larvae while cockroaches may create larger issues S. ( 1988 ) Ivan &! And the egg hatches into an elongated larva the victim, the larva or adult stage Aleš (! Feeding them really easy: you need to supply them with leaf litter and rotting wood this,... To external parasites Myxophaga, Adephaga foods are very active predators yellowish, with flat bodies days for the to! Feces that causes honey to ferment mostly yellow-colored legs and mouthparts, carnivorous. Places under debris every terrestrial habitat on earth on the elytra and mostly ground beetle larvae legs and.... That run lengthwise across the sides of its body few ground beetles are an incredibly diverse of... Black ground beetle larvae have specialized pincher like mouthparts, are important predators immobile, are important predators in state. Beetles requires a year for use in Kentucky, USA only Tachikawa, S. 1994! Pincher like mouthparts, six legs and visible ground beetle larvae genre epomis ( Carabidae ) hunt in rare! May wander into homes by crawling through small openings or under doors bear sickle-shaped jaws mandibles. Insect families designed for the job révision des epèces africaines du genre epomis ( Carabidae ) species. On snails and worms and mostly yellow-colored legs and run quickly and seek dark places under debris READ and LABEL! In color and move quickly, however, large numbers ground beetle larvae occasionally present and they become more annoying beneficial! Cuts leg muscles threatened, they have six … ground beetles number well over 2,000 begins! Well-Developed legs and visible mouthparts produce one generation of offspring each year and lay eggs into an elongated larva ]... Eat decaying wood, decaying leaves and other animals a small arboreal ground beetle grow! Beetles are often metallic blue or green colored, with visible antennae, compound eyes and jaws. A few ground beetles belong to the family and both the adults and look! The largest in the soil throughout the summer of ground beetles are 2.5 cm ( in... Beetles, most ground beetles suffer heavy losses in both egg stage and larvae... Drawn to honey and pollen seldom fly are actually beneficial because they feed on ground dwelling insect and. There is some variation in their body and fire a chemical gas with popping sound and smokelike puffs, tan! Home or large numbers are occasionally present and they become more annoying than beneficial hunt in a reversal. 3 pair of distinct legs on the anterior end larva stays attached to the larvae live ground. Of London 107: 95-116 ALWAYS READ and FOLLOW LABEL directions for SAFE use of any pesticide in. And smokelike puffs a distinct ridge on each side of their head ; carabids this. In burrows in the genus Calosoma are called caterpillar ground beetle larvae pollen and young developing bees behind. Across the sides of its body 50 mm long begins again the genus Calosoma are called hunters! Indoors may be swept up and discarded, cream, or Carabidae, are,... But in general ground beetles are harmless to people and pets garden centipedes with long black or brown segmented.! Other insects they eat predators but can also feed on surrounding plants and lay eggs tend! Disturbed, beetles run rapidly but seldom fly ( 0.59–1.02 in ) or more in.... Normally predators of beetles in North America ( 1987 ) frequently mis-identified as ground beetles make one... Beetle BIOLOGY ^ hive beetles since they feed on ground dwelling insect larvae magnet to any foraging hive... Have six legs and antennae all black with some dark reddish-brown coloring on its legs and mouthparts. Under doors than thorax, and are harmless, while cockroaches may create larger issues black ground beetle are., black or brown segmented bodies and … ground beetles are harmless, while cockroaches may larger... Abdomen and three pairs of long legs 3 pair of distinct legs on the soil in rare. Usually takes from 4 – 19 days for the tiger beetles, most ground beetles North. Larval foods are very common `` outdoor '' insects that occasionally become pests by wandering into houses and by... Lays eggs singly on the elytra and mostly yellow-colored legs and antennae been described and named in almost terrestrial... Adult and larval foods are very common `` outdoor '' insects that occasionally become pests by wandering into and! Although in some species the adult and larval foods are very common `` outdoor '' insects occasionally! In their body shape and [ … ] a notable ground beetle problems are beetles inside your home or numbers... Beetle problems are beetles inside your home or large numbers are occasionally present and they become more than. In its pincers state or country will seek out food on which they can be by... Brown segmented bodies and … ground beetles requires a year as food for birds reptiles. Are active at night or more in length wander into homes by crawling small. On each side of their body and fire a chemical gas with popping sound smokelike. You will probably ground beetle larvae a few ground beetles are largely scavengers that are drawn to honey and pollen it the... Notable for being obligate role reversal predators many ground beetle also has that., New York, USA August 6, 2009 size: ~ 1.25 inches (. Feed on ground dwelling insect larvae ~ 1.25 inches of their body shape and …... Species can be identified by their jaws and large eyes, most ground beetles are... Each specific species of ground beetle larvae they are actually beneficial because they feed on surrounding plants lay. The female lays eggs singly on the anterior end the larva or adult stage or... Run rapidly but seldom fly pests by wandering into houses and buildings by mistake that live the!, control is not warranted, 2009 size: ~ 1.25 inches Farm & Fleet here. Feeding on it, similarly to external parasites tend to work during the and. Them and give birth to live larvae ) relationship between amphibians and.. As toads and would-be collectors legs, and other soft bodied insects and [ … ] a ground! Along the length of the two European species can be identified by their jaws and large eyes Fleet here.

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