Review of the Canadian Eustrophinae (Coleoptera, Tetratomidae) Author Pollock, Darren Eastern New Mexico University, Portales, United States of America text ZooKeys 2008 2008-09-04 2 2 261 290 journal article 10.3897/zookeys.2.30 423726f5-4886-413c-9aef-422348a3aae4 1313–2970 576400 Pseudoholostrophus Nikitsky, 1983 Pseudoholostrophus Nikitsky, 1983: 37 .— Type species: Hallomenus klapperichi Pic, 1954 (orig. des.); Nikitsky, 1998: 40 ; Young and Pollock, 2002: 416 . This genus was described by Nikitsky (1983) on the basis of examination of Hallomenus klapperichi Pic , which is now included in, and type species of Pseudoholostrophus . According to Nikitsky (1998) , Pseudoholostrophus differs from Holostrophus in its smaller and more weakly emarginate eyes, and the prosternal process not extending behind the posterior edge of the procoxae. Th ere are four species in Pseudoholostrophus ( Nikitsky, 1998 ) , two of which are Nearctic (including Canada ) in distribution. Th e other two species, P . klapperichi (Pic) and P . chinensis Nikitsky , are known from China . Nikitsky (1998) divided the genus into two subgenera; all species other than P . discolor (Horn) are placed in the nominate subgenus. Holostrophus discolor (Horn) was transferred to Pseudoholostrophus ( Holostrophinus ) by Nikitsky (1998) .