Holcostethus tristis
(Van Duzee, 1904)
Holcostethus tristis is a of in the Pentatomidae, first described by Van Duzee in 1904. The species is recorded from western North America, specifically within the Western Nearctic region excluding Beringia. As a member of Pentatomidae, it possesses the shield-shaped body characteristic of stink bugs. Available records indicate it is a rarely encountered species with limited observational data.

Pronunciation
How to pronounce Holcostethus tristis: /hɒlkɒˈstɛθəs ˈtrɪs.tɪs/
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Distribution
Western North America, specifically the Western Nearctic region excluding Beringia. Records from Canada and the western United States.
More Details
Taxonomic history
Originally described by Van Duzee in 1904. The Holcostethus contains relatively few , most of which are poorly documented in the literature.
Data availability
As of the knowledge cutoff, this has fewer than 30 documented observations on iNaturalist, indicating it is either genuinely rare, undercollected, or difficult to identify.