A Taxonomic Revision of Nearctic Conostigmus (Hymenoptera: Ceraphronoidea: Megaspilidae) Trietsch, Carolyn Mikó, István Ezray, Briana Deans, Andrew R. Zootaxa 2020 2020-06-15 4792 1 1 155 XTMJ Kieffer, 1908 Kieffer 1908 [151,623,1829,1856] Insecta Megaspilidae Conostigmus Animalia Hymenoptera 86 87 Arthropoda species trapezoidus   Species Comments and History. Kieffer (1908)described this species from a single male specimen collected in Jeannette, PA. The species is named for the trapezoidal appearance of the vertex of the head: “tète rétrécie graduellement en arriére des yeux, le vertex par suite trapezoidal” ( Kieffer, 1908, pg. 35). However, this is a feature of many megaspilid species. The original description offers other characters related to antennae ratios, coloration and microsculpture that could apply to several different species as well. The location of the original typespecimen is unknown, so it is not possible to verify this species at the time. We consider  Conostigmus trapezoidusas a species inquirenda.