British insects: the families of Coleoptera
British insects: the families of Coleoptera |
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= Phloeophilidae.
General appearance. 2.3–2.6 mm long. Body length/maximum body width 1.9–2.3. Elytral length/pronotal length 3.55–3.8. Base of prothorax not or scarcely narrower than the combined elytral bases. Greatest prothoracic width not narrower or only slightly narrower than the greatest elytral width. Beetles elongate; dorsally somewhat convex, or dorsally strongly convex; conspicuously necked to not necked; conspicuously waisted; thorax black, elytra with dark markings. Upper surfaces of body non-glabrous; not bristly; with neither scales nor scale-like setae.
Detailed morphology. Eyes strongly protuberant; without bristles; finely facetted. Antennae short; 11 segmented; clubbed. Antennal insertions visible from above. Mandibular prosthecae well developed. Pronotal length/maximum pronotal width 0.56–0.6. Prothorax without notopleural sutures. Metaventrite without a transverse groove. Tarsal segmentation formula 5, 5, 5. The tarsi without bilobed segments; without ‘hidden’ segments. Front tarsi with as many segments as the mid-tarsi; 5-segmented. Mid-leg tarsi 5-segmented; pentamerous. The claws of the mid-leg tarsi not appendaged. The claws of the mid-leg tarsi simple. Hind tarsi with as many segments as the mid-tarsi; 5-segmented. Elytral length/maximum width across the elytra 1.5–1.85. Elytra exposing no more than part of the terminal tergite. Scutellary striole absent. Elytra non-glabrous (slightly hairy). Wings well developed, or absent or much reduced. Exposed abdominal sternites 5; all articulated and movable. Abdominal segment 8 apparently without functional spiracles.
Adult habitat, ecology. In living vegetation and on lichens (on lichen-covered branches of oak trees).
Classification. Suborder Polyphaga; Infraorder Cucujiformia; Superfamily Cleroidea.
Worldwide and British representation. 1 species worldwide; genera 1. 1 species in Britain (P. edwardsi); genera in Britain 1; Phloiophilus.
General comments. The elytra strongly punctured.
Illustrations. • Phloiophilus edwardsi (from Joy). Phloiophilus edwardsi. • Phloiophilus edwardsi: Fowler 4, 115 (1890).
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: 2nd January 2012. http://delta-intkey.com’.
