British Insects: the Families of Coleoptera
British Insects: the Families of Coleoptera |
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Cimberididae, Rhinomaceridae.
General appearance. 2–5 mm long. Body length/maximum body width 1.95–2.8. Elytral length/pronotal length 2.25–3.15. 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. Beetles elongate; not necked; conspicuously waisted; pitchy black with orange hairs; exhibiting bright ‘warning colours’. Upper surfaces of body non-glabrous; not bristly; with neither scales nor scale-like setae.
Detailed morphology. Beetles equipped with a rostrum (this long). Eyes strongly protuberant, or not strongly protuberant; bristly, or without bristles. Antennae short to about half the insect's head to tail length; not elbowed; 11 segmented. Antennal scape not swollen. Antennae gradually expanding acropetally. Antennal insertions hidden from above. Mandibular prosthecae present but reduced, or absent.
Pronotal length/maximum pronotal width 0.7–1.25. Prothorax without notopleural sutures. Metaventrite without a transverse groove. The tarsi exhibiting bilobed segments; with a tiny penultimate segment hidden by lobing of the one proximal to it. Mid-leg tarsi 5-segmented; pseudotetramerous. Claws of the mid-leg tarsi not appendaged. Front tarsi with as many segments as the mid-tarsi; 5-segmented. Hind tarsi with as many segments as the mid-tarsi; 5-segmented. Tarsal claws simple, or one-toothed or bifid. Elytral length/maximum width across the elytra 1.5–2.05. Elytra exposing no more than part of the terminal tergite. Scutellary striole present, or absent. Elytra non-glabrous (with orange hairs). Wings well developed, or absent or much reduced.
Visible abdominal sternites 5; immovably joined 0. Abdominal segment 8 apparently without functional spiracles.
Habitat, ecology. Not predacious; phytophagous; in living vegetation (on conifers).
Larvae. Larvae not predacious; phytophagous; on living vegetation.
Classification. Suborder Polyphaga; Superfamily Curculionoidea.
British representation. Genera 1; 1 species.
Illustrations. • Rhinomacer attelaboides (from Joy). Rhinomacer attelaboides.
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’.
