Aradus brevicornis, Kormilev, 1980

Heiss, Ernst & Scudder, Geoffrey G. E., 2019, Aradidae (Heteroptera) new to North America and Canada, with some additional provincial and state records for Canada and the USA, Linzer biologische Beiträge 51 (2), pp. 821-829 : 824

Aradus brevicornis KORMILEV, 1980 ( Figs 19-28 )

M a t e r i a l e x a m i n e d: ALBERTA: 1♀, Peace River, 18.vi.1961 (A.&R. Brooks) [ CNC]. ONTARIO: 1♀, Alfred , bog edge, sifting litter around rasp.-blackberry cane, 16.iv.1985 (A. Davies) [ CNC]. QUEBEC: 4♂♂, Montreal , 7.ix.1981 (E.J. Kiteley) [ CNC], 1♂ [EHCI].

Described from California and recorded only from that state in HENRY & FROESCHNER (1988). The senior author compared the specimens with photographs of the male holotype which is in the California Academy of Sciences in San Francisco. KORMILEV (1980) stated that A. brevicornis runs to A. borealis HEIDEMANN, 1909 in Parshley’s key, but differs in that the antennae are shorter, with the second antennae segment half as long as the distance between the eyes, and the labium is much shorter, reaching half of prosternum. Females are brachypterous. The species also has a different coloration. The unreported male genitalic structures are figured for the first time.

Figures

Figs 19-28. Aradus brevicornis. (19) holotype male, dorsal view; (20) lateral view; (21) brachypterous female (AK); (22-23) labels attached to holotype; (24-28) male genitalic structures; (24-26) left paramere, (27) left parandrium, (28) tergite IX. Scales: 1mm (19-21); 0.1mm (24-28).