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Volume one (xxviii + 622 pages) consists of the text (largely a set of identification keys, with brief status notes for each species). Volume two (194 pages) contains 2040 line-drawings of whole beetles and features referred to in the keys (390 of these were taken from Spry and Shuckard's 1840 publication The British Coleoptera Delineated but the remainder were drawn by Joy).
Corylophidae is a family of minute hooded beetles, sometimes called minute fungus beetles, ... "Coleoptera: family-group review and keys to identification".
Key characteristics of Polyphaga are that the hind coxa (base of the leg), do not divide the first and second abdominal/ventral plates which are known as sternites. Also, the notopleural suture (found under the pronotal shield) is not present. [1] To further identify Clerid beetles, a few additional characteristics need to be examined.
Larder beetles are infrequent household pests. [20] Adults and larvae feed on raw skins and hides. Adult larder beetles are generally 1/3 to 3/8 of an inch long and are dark brown with a broad, pale yellow spotted band across the upper portion of the elytra. There are three black dots arranged in a triangle shape on each wing.
The physical variation of antennae is important for the identification of many beetle groups. The Curculionidae have elbowed or geniculate antennae. Feather like flabellate antennae are a restricted form found in the Rhipiceridae and a few other families. The Silphidae have a capitate antennae with a spherical head at the tip.
This article classifies the subgroups of the order Coleoptera down to the level of families, following the system in "Family-group names in Coleoptera (Insecta)", Bouchard, et al. (2011), [1] with corrections and additions from 2020, [2] with common names from bugguide.net.
Apioninae is a subfamily of pear-shaped weevils in the family of beetles known as Brentidae. There are at least 20 genera and 80 described species in Apioninae. [1] [2] They feed on living vegetation and sometimes on galls, making them occasional pests or tools of biological control. [3] Betulapion simile
Prometopinae is a subfamily of sap-feeding beetles in the family Nitidulidae. ... "Coleoptera: family-group review and keys to identification". Fauna of New Zealand. 37.