Byrsinus Fieber, 1860

Lis, Jerzy A., 2001, A REVIEW OF THE GENUS BYRSINUS FIBBER, 1860 (HEMIPTERA: HETEROPTERA: CYDNIDAE) IN AUSTRALIA, WITH A KEY TO AUSTRALO-PACIFIC SPECIES, Annales Zoologici 51, No. 2, pp. 197-203 : 198

Byrsinus Fieber

Byrsinus Fieber, 1860: 83 .

Type species. Cydnus (Byrsinus) fossor Mulsant et Rey, 1866 .

Diagnostic characters. Body convex, smaJJ to medium-sized. Read broader than long, its submargins with setigerous punctures bearing either numerous hair-like setae or both peg-like and hajr-like setae; ocelli present, eyes moderately large, each with a single seta apically; antennae 5-segmented, short, 1st and 2nd segment cylindrical, 3rd, 4th and 5th rounded. Pronotum broader than Jong, laterally with numerous long hair-like setae; anterior margin broadly concave; pronotal cUsc undivided into lobes. Scutellum longer than broad. Cotium divided into clavus, meso- and exocorium; costa with numerous setigerous punctures bearing long hair-like setae; membrane normally developed, usually surpassing the tip of abdomen. Mesopleural evaporative area very small, almost indistinct, sometimes absent; metapleural evaporative area aJso very small, but better visible than that of mesopleuron; apex of peritreme modified into well visible lobe-like auricle, bearing no tooth on its posterior margin; osteolar opening visible in ventral view.