Aleochara (Xenochara) tristis Gravenhorst, 1806

Klimaszewski, Jan, Chandler, Donald S., Davies, Anthony & Bourdon, Caroline, 2023, Aleocharine rove beetles of New Hampshire, USA: new taxa and new records (Coleoptera, Staphylinidae, Aleocharinae), Zootaxa 5364 (1), pp. 1-141 : 19

24. Aleochara (Xenochara) tristis Gravenhorst †

(Illustrations in Klimaszewski 1984, Klimaszewski et al. 2018), Table 1

References. Gravenhorst 1806. Klimaszewski 1984. Klimaszewski et al. 2005 a, 2018. Brunke et al. 2012.

Distribution. Palearctic, adventive in North America. Canada: NB, NF, ON, QC. USA: CA, MN, NE, NH (NSR), PA, VT.

Collection and Habitat data. The single specimen from NH was collected by sifting beach wrack in September. Elsewhere taken in woodlands and open habitats. Found in various decaying organic matter such as human feces, manure, and decaying plant matter. Also found on a dead moose in a bog, and in decaying sea wrack on a sea beach ( Klimaszewski et al. 2018). One was taken from a pitfall trap in a mature red spruce forest. This species parasitizes puparia of Muscidae and Sarcophagidae , and may be used for biological control of face fly, Musca autumnalis DeGeer ( Klimaszewski 1984) .

Material. USA, New Hampshire, Rockingham Co.: Odiorne Point St. Park, 12.IX.1985, D.S. Chandler, sift wrack, 1 female .