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Family Dermestidae

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Family Dermestidae Family Dermestidae Source Material Translation and adaptation of the German key by Arved Lompe, with permission (his key derived from those of G.A. Lohse, V. Kalik). The original can be accessed online at http://www.coleo-net.de/coleo/texte/dermestidae.htm. Parts of the key for genus Dermestes and most of the key for genus Attagenus are derived from Peacock (1993), Handbooks for the Identification of British Insects, Volume 5, Part 3, Adults and Larvae of Hide, Larder and Carpet Beetles and their Relatives (Coleoptera, Dermestidae). This work should be consulted for further information. Image Credits Most of the photographs of whole beetles in this key are reproduced from the Iconographia Coleopterorum Poloniae, with permission kindly granted by Lech Borowiec. The other photographs are from Andreas Herrmann’s picture gallery at http://www.dermestidae.com/. A few line drawings are reproduced from Peacock (1993) Creative Commons. © Mike Hackston (2014), derived from the keys of Arved Lompe (2013) which are from the works of G.A. Lohse and V. Kalik Checklist of species From the Checklist of Beetles of the British Isles, 2012 edition, edited by A. G. Duff (available from www.coleopterist.org.uk/checklist.htm). This lists 40 species in 13 genera. Subfamily THYLODRIINAE Subfamily ANTHRENINAE Genus Thylodrias Motschulsky, 1839 Genus Anthrenus Geoffroy, 1762 contractus Motschulsky, 1839 coloratus Reitter, 1881 flavipes LeConte, 1854 Subfamily THORICTINAE fuscus Olivier, 1789 Genus Thorictodes Reitter, 1875 museorum (Linnaeus, 1761) heydeni Reitter, 1875 olgae Kalik, 1946 pimpinellae Fabricius, 1775 Subfamily DERMESTINAE sarnicus Mroczkowski, 1963 Genus Dermestes Linnaeus, 1758 scrophulariae (Linnaeus, 1758) ater De Geer, 1774 verbasci (Linnaeus, 1767) carnivorus Fabricius, 1775 frischii Kugelann, 1792 Subfamily MEGATOMINAE haemorrhoidalis Küster, 1852 Genus Trogoderma Dejean, 1821 lardarius Linnaeus, 1758 angustum (Solier, 1849) leechi Kalik, 1952 glabrum (Herbst, 1783) maculatus De Geer, 1774 granarium Everts, 1898 murinus Linnaeus, 1758 inclusum LeConte, 1854 peruvianus Laporte, 1840 variabile Ballion, 1878 undulatus Brahm, 1790 Genus Reesa Beal, 1967 vespulae (Milliron, 1939) Subfamily ATTAGENINAE Genus Globicornis Latreille, 1829 Genus Attagenus Latreille, 1802 rufitarsis (Creutzer, 1796) brunneus Faldermann, 1835 Genus Megatoma Herbst, 1792 cyphonoides Reitter, 1881 undata (Linnaeus, 1758) fasciatus (Thunberg, 1795) Genus Anthrenocerus Arrow, 1915 pellio (Linnaeus, 1758) australis (Hope, 1843) smirnovi Zhantiev, 1973 Genus Orphinus Motschulsky, 1858 trifasciatus (Fabricius, 1787) unicolor (Brahm, 1791) fulvipes (Guérin-Méneville, 1838) Genus Ctesias Stephens, 1830 serra (Fabricius, 1792) Subfamily TRINODINAE Genus Trinodes Dejean, 1821 hirtus (Fabricius, 1781) Creative Commons. © Mike Hackston (2014), derived from the keys of Arved Lompe (2013) which are from the works of G.A. Lohse and V. Kalik Family Dermestidae Keys to British subfamilies, genera and species 1 Pronotum broadest in the middle and narrowing towards the base. Body strongly hardened. Length 1.3-1.5 mm. Subfamily Thorictinae. ...................................................... .......... Thorictodes heydeni Photo by Andreas Herrmann Pronotum broadest at the base, tapering towards the front. Length 1.5-11 mm. .................................................................................................................2 Creative Commons. © Mike Hackston (2014), derived from the keys of Arved Lompe (2013) which are from the works of G.A. Lohse and V. Kalik 2 Antennae thread-like, narrow with the last three or four segments elongate. Males with a weakly pigmented elytra, semi-transparent, similar to some species of Malachiidae. Female wingless, looking like a larva. Subfamily Thylodriadinae. ... .......... Thylodrias contractus Photo by Andreas Herrmann Antennae thickened towards the tip or clubbed. .............................................3 Creative Commons. © Mike Hackston (2014), derived from the keys of Arved Lompe (2013) which are from the works of G.A. Lohse and V. Kalik 3 Frons without an ocellus. Club of the antennae shortly oval or rounded. Body shape characteristic. Length mostly between 6-11 mm. Subfamily Dermestinae. ........................................................... .......... Genus Dermestes Frons with an ocellus. Length from 1.5-6 mm. ..............................................4 Creative Commons. © Mike Hackston (2014), derived from the keys of Arved Lompe (2013) which are from the works of G.A. Lohse and V. Kalik 4 Upper surface covered with scales which lie on the surface. Viewed from the side or below, the margin of the pronotum has a long sharply defined furrow into which the antennae can be placed. Length 1.8-5 mm. Subfamily Anthreninae. ................................................ .......... Genus Anthrenus Upper surface with hairs, but often with pale patches or stripes of scale-like hairs. ..............................................................................................................5 Creative Commons. © Mike Hackston (2014), derived from the keys of Arved Lompe (2013) which are from the works of G.A. Lohse and V. Kalik 5 Base of pronotum on each side with a longitudinal furrow bordered with a keel. Upper surface with very long outstanding pubescence. Length 1.5-2 mm. Dark coloured, shining species with antennae and legs pale brown. Subfamily Trinodinae. ....... .......... Trinodes hirtus S and E England, rare, among spiders’ webs under loose bark. With hairs flat against the surface or with scales or hairless. Base of pronotum without a longitudinal furrow each side. ........................................6 Creative Commons. © Mike Hackston (2014), derived from the keys of Arved Lompe (2013) which are from the works of G.A. Lohse and V. Kalik 6 The head is downwardly pointing and is only partly covered on the underside by the prosternum. The sides of the prosternum do not have furrows to accommodate the antennae. Hind coxae with a tooth-like projection. Length 4-5.5 mm. Subfamily Attageninae. .......... Genus Attagenus The head is angled towards the rear and is covered by the prosternum up to the mandibles. Prosternum with or without furrows to accommodate the antennae. Front coxae broader than long and more or less sunken into the underside of the beetle. Subfamily Megatominae. ........................................7 Creative Commons. © Mike Hackston (2014), derived from the keys of Arved Lompe (2013) which are from the works of G.A. Lohse and V. Kalik 7 Antennae, at least in males with more than three enlarged segments or with more than three segments making up a club. ................................................8 Antennae otherwise. .......................................................................................9 Creative Commons. © Mike Hackston (2014), derived from the keys of Arved Lompe (2013) which are from the works of G.A. Lohse and V. Kalik 8 More compact species. Upper surface with patches or bands of pale hairs. Prosternum with sharply bordered furrows to accommodate the antennae. Enlarged tip of the antennae more or less grading into the rest of the antennae. ...................................................................... .......... Genus Trogoderma More elongate species. Elytra with a paler band behind the shoulders. Antennae with a distinct club composed of four segments. ........................................................... .......... Reesa vespulae Creative Commons. © Mike Hackston (2014), derived from the keys of Arved Lompe (2013) which are from the works of G.A. Lohse and V. Kalik 9 Antennae composed of ten segments, the last three of which form a club. Prosternum without sharply bordered furrows to accommodate the antennae. .... .......... Globicornis rufitarsis Antennae composed of eleven segments. ...................................................10 Creative Commons. © Mike Hackston (2014), derived from the keys of Arved Lompe (2013) which are from the works of G.A. Lohse and V. Kalik 10 Antennae with a distinctly enlarged terminal segment which is at least as long as the three segments before it. .............. .......... Orphinus fulvipes Photo by Andreas Herrmann The last segment of the three-segmented club is not conspicuously enlarged. .......................................................................................................................11 Creative Commons. © Mike Hackston (2014), derived from the keys of Arved Lompe (2013) which are from the works of G.A. Lohse and V. Kalik 11 Elytra without markings produced by varying hair colour. Upper surface shining black with very short curved black hairs. Prosternum with a sharply bordered furrow to accommodate the antennae each side. Club of the antennae asymmetrical; segment nine triangular. Length 3.8-5 mm. ............................................................. .......... Ctesias serra Elytra with markings due to variations in the colour of the hair. Ninth segment of the antennae not triangular. .......................................................12 Creative Commons. © Mike Hackston (2014), derived from the keys of Arved Lompe (2013) which are from the works of G.A. Lohse and V. Kalik 12 Sides of the prosternum only bluntly pressed in. Body elongate oval or cylindrical. Elytra with two bands of white hair (sometimes interrupted) and white patches around the hind angles of the pronotum. Length 3.6-6.5 mm. .............................................................. .........
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