Acrotrichis cognata (Matthews, 1877)

Fig. 17D

Diagnosis

The microtrichiate elytra (Fig. 17D) and the shape of the spermatheca distinguish this species. The elytral microtrichiae give the elytra a dull appearance rather than the blue-grey iridescent sheen of Nearctic and Palaearctic specimens which I have seen tempting a determination as the very similar, both morphologically and in the form of the spermatheca, with the equally widespread A. josephi Matthews, 1872 .

Material examined

MALAYSIA-BORNEO • 1 ♀; Sarawak, 4 th division, Gunung Mulu National Park; 800–1700 m a.s.l.; 29 Apr. 1978; I. Hanski leg., BM 1978-525; pitfall trap fishbait, LMR forest slope 4-6; BMNH .

Remarks

Adventive, synanthropic, parthenogenetic species recorded from North America and New Zealand.