Insects of Britain and Ireland: the families of Hemiptera
Salient features of adults. Terrestrial.
Phytophagous (especially on Chenopods). Tiny; 2–3 mm long; fliers, or non-fliers; relatively stout bodied (elongate-oval); not stilt-legged. Head non-linear. Rostrum clearly separated ventrally from the prosternum by a sclerotized gula; 4 segmented. Antennae longer than the head, readily visible from above; 4 segmented; non-aristate. Ocelli present (in macropterous forms). Scutellum relatively small. Fore-wings well developed; in the resting insect lying more or less flat over the abdomen; differentiated into a basally thickened and a distally membranous region; with a clavus. Hind coxae mobile; rotatory. Tarsi 2 segmented. Claws all apical. Pulvilli present. The abdomen without ventral silvery pubescence.
Superficially tingid-like insects, with red or yellow ground colour; pronotum covered with a dense pattern of punctures and with two or three longitudinal keels, not covering the scutellum; hardened part of fore-wing covered with a similar dense pattern of punctures; head anteriorly bifid.
Taxonomy. Suborder Heteroptera; Lygaeoidea.
British representation. 2 species in Britain; genera 1. Piesma.
Illustrations. • Piesma quadratum (Southwood & Leston). • Gastrodes abietum, with assorted unrelated taxa: Saunders, 1892..
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. Insects of Britain and Ireland: the families of Hemiptera. Version: 16th May 2016. delta-intkey.com’.