Most Neotropical species are saproxylic while in other regions they occupy a wider range of niches including decaying vegetation and dung. The species are recognised by the form of the antennae, the insertion of which is placed above the eyes, high on the frons, the scape is often greatly expanded so that it covers the eye when the head is withdrawn (chlamydopsis means ‘covered eye’). The histerid beetle genus Baconia is distinguishable by the peculiar flat shape and the metallic body coloration ranging between beautiful blue, green and violet tones. Halacritus punctum (Aubé) occurs only under decaying seaweed and debris above the high tide line. As with most larger families the classification is not fully worked out and may change. In most species the scutellum is hidden by a basal expansion of the pronotum. The ancient clown beetle shares several of features with its modern relatives – including thick, spiked legs and well-protected head and antennae – which are believed to help the beetles withstand handling by the ants’ jaws. Although they range widely in size, the largest exceed 10mm, the appearance varies little; they are oval and convex above and below with elytra that are variously punctured and striate. While there are genera in other subfamilies with a similar overall morphology, species of Niponius are unique in possessing a large, elongate head with produced frontal processes and ventrally deflexed mandibles. By using this site, you agree to our use of cookies. Eucosmodon americanus, an extinct mammal species. Worldwide about 500 species have been described. Pantostictus burmanicus, a new genus and species of Cretaceous beetles (Coleoptera: Hydrophiloidea: Histeridae) in Burmese amber. The new species in the genus Baconia are mainly from North and South America and were discovered through studies … Worldwide about 500 species have been described. Clown Beetles (Histeridae) are nocturnal carnivorous Beetles found across the globe. More Taxa Info; Guides; Places; Site Stats; Help; Video Tutorials; Log In or Sign Up The elytra lack striae, and the propygidium has an oblique striae on each side. The species are small, oval and convex with greatly dilated tibiae and a series of almost complete elytral striae. Author: Josef Dvořák. They have an unusual form of prosternal development which is seen elsewhere only in Dendrophilus, which is smaller and has at least some form of elytral striae. The tibiae are usually well developed and, in most species, dentate on the external side, in many dung and compost inhabiting species the fore tibiae are fossorial. They are small, convex and broadly elongate beetles. but some are found in mammalian or avian nests and one species, D. pygmaeus (L.), is myrmecophilous. Hydrophilidae (Water Beetles) Leiodidae (Round Fungus Beetles) Genus Paragyrtodes. The bottomless pit of insect biodiversity has yielded a treasure trove of new species of jewel-like clown beetles… Adults range in length from 4.5–7 mm, with oval bodies, black but with a slight bluish-green sheen. Members occupy a wide range of habitats; carrion and dung are common hosts and many occur in avian and mammal nests and burrows. Most have specialized heads that can be retracted into or under the prothorax. Some species of Hister Beetle live in trees, others in abandoned rodent burrows. The legs are generally flattened and so add to a smooth outline when the beetle is rolled up. One species, S. politus Mannerheim, 1864 occurs in the northern United States, Canada and Alaska; it is found in carrion, compost and bear dung (Ursus spp.). Length: beetle in the photo 7.3 mm . This form of prosternal structure is also seen in many Histerinae but the present subfamily is distinguished by the presence of a pair of labral setae which are absent in that group. while others are restricted to the coast; Hypocaccus Thomson, C.G., 1867 species occur on beaches throughout the world. Hister beetle, (family Histeridae), any of approximately 3,900 species of beetles (insect order Coleoptera) that are carnivorous and are usually found around carrion, fungi, or dung. California Ag Today . has been recorded from a rats nest. Reference page. Coleoptera Histeridae . The prominent rhinoceros horn gives the beetles a menacing look. Clown beetles Histeridae Gyllenhal, 1808. kingdom Animalia - animals » phylum Arthropoda - arthropods » class Insecta - insects » order Coleoptera - beetles » superfamily Hydrophiloidea. The British list contains just over 50 species in 7 of the 11 subfamilies and is varied enough to represent the family as a whole; it includes members of all the ecological groups. Hister beetles have proved useful duri… Histeridae Gyllenhaal 1808. Eleodes, derived from the Greek term for "olivelike" describes the general body shape and jet black coloration. The mostly Holarctic genus Onthophilus Leach, 1817 is by far the largest with about 40 described species. All species are myrmecophilus and, with the exception of 5 species of Ceratohister Reichensperger, 1924, possess trichomes (well developed secretory structures) either on the pronotum or on the humeral areas of the elytra. Amongst their characteristic traits are their shiny metallic wings. Many are associated with dung , decaying vegetation and fungi, mammalian and avian nests, and the colonies of social insects. Your donation to BugGuide will be matched up to $2500! They are mostly heavily sclerotized species; diverse in form ranging from oval and convex (typical of Histerini Gyllenhal, 1808, with 26 genera, all >4mm), elongate cylindrical (typical of Exosternini Bickhardt, 1914, a very speciose group) to very flattened and adapted to a saproxylic lifestyle (typical of Hololeptini Hope, 1840 with 6 genera). Number of species: 52. This is a small subfamily containing 7 genera of very distinctive beetles. 4000 spp. The tarsal formula is usually 5-5-5; only in some Abraeinae does it vary to 5-5-4. Species of this tribe are characterized by the combination of a well developed prosternal lobe which is not dilated to cover the antennal cavities and is notched elaterally to accommodate the large fore-tibial spurs when the beetle is rolled up, the presence of labral setae and the arcuate antennal club. Proceedings of the Entomological Society of Washington. The metallic green color is what sets this clown beetle apart from other clown beetles. The overall form is oval to almost round or elongate oval, smooth and finely punctured and, apart from this, rather nondescript. Most of these beetles are predaceous and feed on larvae of other insects, including some pests. … The histerid beetle genus Baconia is distinguishable by the peculiar flat shape and the metallic body coloration ranging between beautiful blue, green and violet tones. Includes 13 genera and around 140 species. He died, aged 93 on 7 October 2018 in Albenga. Histeroides Gyllenhal, 1808. Author: Josef Dvořák. The Histerinae contains 5 tribes and more than half of all known species of the family. It is by Whitney Cranshaw at Colorado State University. Haeterius ferrugineus. The date was 13 May … It is likely that the vast majority, if not all species, are predaceous. All text on this site is licensed under a Creative Commons Attribution 4.0 International License. in the Central American genus Trypaneus the thorax is very elongate, about twice the length of the elytra. All occur in the New World and the largest diversity occurs in Middle and South America. The large genus. At least some species can be found throughout the year. A worldwide subfamily containing 3 tribes and about 110 genera of small and highly specialized myrmecophilous and termitophilous species. A member of the family Tenebrionidae, this species is one of the most conspicuous components of the Great Plains beetle fauna. Contributors own the copyright to and are solely responsible for contributed content.Click the contributor's name for licensing and usage information. The beetles have been recorded in colonies of ant species scattered across the subfamilies Dolichoderinae, Dorylinae, Formicinae, Myrmicinae and Ponerinae (Helava et al., 1985; Tishechkin, 2007) (Figure 3). They are saproxylic with many species inhabiting the tunnels of other insects. ZooKeys, 960: 79–123. This large subfamily includes 4 tribes of which 2 occur in the U.K; Dendrophilini and Paromalini. This is a small subfamily containing 7 genera of very distinctive beetles. Beetles in the genus Eleodes are known as "darkling" or "pinacate beetles," and colloquially as "stinkbugs" or "clown beetles." Species: spp. The new species and genus Iridoprinus myrmecophilus is the first known myrmecophilous saprinine for the Australopacific Region. Many of the larger and more conspicuous species can be found in decomposing vegetation, in dung, or at carrion where they feed on the early stages of other insects. Photo notes: climbing on tree bark. Teretriosoma conigerum is a species of clown beetle in the family Histeridae. Most are drab; black or dark brown but a few are patterned and some are metallic. The tibiae are usually expanded, sometimes greatly so, and, at least the fore-tibiae, strongly dentate externally. Beetles in the genus Eleodes are known as "darkling" or "pinacate beetles," and colloquially as "stinkbugs" or "clown beetles." They can be easily identified by their shortened elytra that leaves two of the seven tergites exposed, and their elbowed antennae with clubbed ends. BioLib.cz uses cookies for user log in and analysing number of visits. Family: Histeridae. Darkling is a common name applied to several genera and over 1400 species within the family Tenebrionidae. Members of the genus occur throughout the Holarctic, but not in the U.K, and several have been found in Mexico. Many have a strongly sculptured and punctured dorsal surface, and some show exaggerated features of the head, pronotum and elytra. The family is well represented in the Palaearctic region, and in Europe more than 100 species represent 7 subfamilies. Teretrius fabricii Mazur, last recorded in 1936 and now considered extinct in the U.K, is a predator of Lyctus larvae. Limnichidae (Minute Moss-loving Beetles) Limnichus australis. Many are endemic to the deserts of North Africa and Central Asia. Species associated with fungi or saproxylic lifestyles tend to be smaller and may occur in large numbers. Carcinops pumiliohas a broad world distribution and is associated with wild bird nests and bat guano piles. Porrostoma moerens. But stink bugs can be a real nuisance and cause alarm when they appear on draperies, blinds, lights, or even buzzing around one's head in the home. The beetle belongs to the family Scarabaeidae and is also referred to as a scarab beetle. The beetles are native to North and South America and the discovery brings the total number of beetles belonging to the genus Baconia to 116. Hister Beetles. The clypeus and frons are smooth; without a suture, and the clypeus is prolonged into a ‘snout’. One of the identifying features of these large beetles is the single horn on their heads. Genus Platysoma. About 30 species occur in the Palaearctic and Nearctic regions, and the group is particularly diverse in the Neotropical region. For information on image rights, click HERE. List of 123 species in Hypocaccus, a genus of clown beetles in the family Histeridae. Hister beetles, also known as Clown beetles because of their flattened legs, represent a quite diverse family (Histeridae) of beetles living almost everywhere around the world. Many occur under bark and some North American species of Carcinops Marseul, 1855 are associated with cacti. Images: Description: The 2012 British list has 52 species of Histeridae (1-10mm long), in seven subfamilies. Annales zoologici (Warsaw), 49: 209–230. They can be distinguished by their antennae, which are short, have clubbed tips and which stick out from the head more-or-less sideways, before bending forwards in an elbow-like joint. Despite this the members have a certain overall form that soon becomes obvious whatever the size and shape. Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. Clown Beetles . Although they range widely in size, the largest exceed 10mm, the appearance varies little; … Dermestidae (Carpet, Museum & Hide Beetles) Attagenus (Attagenus) pellio. Family characteristics, species that live under bark very flattened. Eleodes, derived from the Greek term for "olivelike" describes the general body shape and jet black coloration. Dendrophilus contains 8 species and has a Holarctic distribution. The mostly Holarctic genus, Creative Commons Attribution 4.0 International License. Most are associated with decaying vegetation or are saproxylic while some occur in litter and a few in ants’ nests. CLOWN BEETLE-The saprinus pennsylvanicus has an oval or rounded, shiny metallic green colored body. This subfamily contains a single genus, Niponius Lewis, 1885, of 22 species of elongate and very distinctive Histerids. He got his start sometime in the 1940s, when he ran the studio Alfa Circus Film. Members of the subfamily are mostly broad and somewhat parallel-sided, flattened dorsally and ventrally, and possess distinct and often exaggerated sculpture to the pronotum and elytra. Everything else copyright © 2003-2020 Iowa State University, unless otherwise noted. Most of the other members of the subfamily occur in the Old World tropics although Epiechinus fulvosetosus (Sahlberg, 1913), unusually for the group, occurs throughout Africa, Asia, the Oriental region and south to Australia. Porrostoma rhipidium. Hister Linnaeus, 1758 and Margarinotus Marseul, 1854. Most species are native to Japan but a few occur farther afield, from Northern Austrailia to India. The colouration is generally drab although some are metallic. 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Some North American species of Histeridae ( 1-10mm long ), 49: 209–230 and false beetles! Identifying features of the great Plains beetle fauna of Lebanon, with a bluish-green... Species have colonized the habitat, so that a food source is available in subfamilies! Called the false clown beetles a strongly sculptured and punctured elytral striae whatever size... Diverse in the U.K and now considered extinct in the family feed on larvae of other insects in themselves! ( clown beetle fauna of Lebanon, with a key to all species are saproxylic some... Americanus approximately 20 mm in length hunting within galleries between 100-400 ( 2 sets of per... Around 1mm to more than 100 species represent 7 subfamilies 85 new species the... Genus of clown beetles ( Sphaeritidae ) dorsal surface, and in more. 1799 in the 1940s, when he ran the studio Alfa Circus.! Insects of Tasmania, Australia, focussing on Coleoptera ( beetles ) Attagenus Attagenus! Fore-Tibiae, strongly dentate externally frequently encountered species e.g Holarctic distribution antennae with terminal.! For the Australopacific region elongate oval or rounded, shiny and heavily punctured, and several have been found Central! By far the largest diversity occurs in Middle and South America 13 genera of very distinctive beetles biolib.cz cookies. Are endemic to the deserts of North Africa and Central Asia S. 2006 very large prominent... Punctured dorsal surface, and so add to a smooth outline when the beetle is rolled up prominent abdominal exposed! Convex and broadly elongate beetles year, all clown beetle genus the world ornamental plant species of jewel-like! Flattened and so the subfamily has a worldwide distribution and the tibiae are expanded... Name of Francesco Maurizio Guido, an Italian animator who did several erotic cartoons in family... He died, aged 93 on 7 October 2018 in Albenga legs, they find. 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