Diapterna hamata (Say, 1824)

Freese, Edwin L., Veal, Doug A. & Lago, Paul K., 2020, The Scarabaeoidea (Coleoptera) of Iowa: An annotated checklist, Insecta Mundi 2020 (787), pp. 1-83 : 53

Diapterna hamata (Say, 1824) .

A species of Canada and the Rocky Mountains listed by Wickham (1911) [as Aphodius hamatus ] from Dickinson, Howard, and Muscatine counties, Iowa; also listed by King (1914) from Henry County. These specimens are very likely Diapterna hyberborea , but we have not been able to check them.

* Labarrus lividus (Olivier, 1789) .

Until recently, L. lividus labels were applied to all North American members of this genus, which are nearly cosmopolitan. Iowa specimens were mentioned by Ratcliffe (1991) [as Aphodius lividus ] and Ratcliffe and Paulsen (2008) [as Labarrus pseudolividus Balthasar ], and are present in the USNM and CASC. All specimens we examined are, in fact, L. pseudolividus , which is very common throughout most of the New World, and perhaps, “the most commonly collected species in southern North America, both at light and in dung” ( Gordon and Skelley 2007). Stebnicka (2009) synonymized L. pseudolividus under L. cinctulus Hope. While it is possible L. lividus may occur somewhere in Iowa, we have not seen specimens.