British Insects: the Families of Coleoptera
British Insects: the Families of Coleoptera |
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Including Cononotidae, Pedilidae part, Pilipalpidae.
General appearance. 9–17 mm long. Body length/maximum body width 2.2–3.55. Elytral length/pronotal length 2.3–6.7. Base of prothorax not or scarcely narrower than the combined elytral bases, or distinctly narrower than the combined elytral bases. Greatest prothoracic width not narrower or only slightly narrower than the greatest elytral width, or distinctly narrower than greatest elytral width. Body noticeably widest at the rear. Beetles elongate; dorsally flattened; conspicuously necked; somewhat waisted to conspicuously waisted. Upper surfaces of body glabrous or subglabrous, or non-glabrous; not bristly; with neither scales nor scale-like setae.
Detailed morphology. Eyes strongly protuberant, or not strongly protuberant; bristly, or without bristles. Antennae short to long, but not exceeding the insect’s head to tail length; 11 segmented; serrate, or pectinate (or plumose?). Antennal insertions visible from above, or hidden from above.
Pronotal length/maximum pronotal width 0.63–1.42. Prothorax without notopleural sutures. Metaventrite without a transverse groove. The tarsi exhibiting bilobed segments; without ‘hidden’ segments. Mid-leg tarsi 5-segmented; pentamerous. Claws of the mid-leg tarsi not appendaged. Front tarsi with as many segments as the mid-tarsi; 5-segmented. Hind tarsi with one segment fewer than the mid-tarsi; 4-segmented. Tarsal claws simple, or one-toothed or bifid. Elytral length/maximum width across the elytra 1.8–3.18. Elytra covering most of the abdomen; exposing no more than part of the terminal tergite. Scutellary striole present, or absent. Wings well developed, or absent or much reduced.
Visible abdominal sternites 5–6; immovably joined 0, or 2. Abdominal segment 8 apparently without functional spiracles.
Habitat, ecology. In living vegetation.
Larvae. Larvae in or under bark.
Classification. Suborder Polyphaga; Superfamily Cucujoidea.
British representation. Genera 2; 3 species. E.g., Pyrochroa coccinea.
Illustrations. • Pyrochroa coccinea (Janson 161).
To view the illustrations with detailed captions, go to the interactive key. This also offers full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting or lacking specified attributes, and distributions of character states within any set of taxa.
Cite this publication as: ‘Watson, L., and Dallwitz, M.J. 2003 onwards. British insects: the families of Coleoptera. Version: 9th June 2008. http://delta-intkey.com’.
