Modified from the original description (Gahan, 1912), with notes added by Jose Fernandez-Triana [those notes are added between brackets within the information taken from the original description]. An additional description can be found in Nixon (1965), those notes will also be added here in the future.
Male. Length 3.5 mm. Black, except legs and anal one-third of abdomen, which are brownish testaceous. Whole head, except occiput, strongly rugoso-punctate and covered with short whitish pubescence; mandibles blackish brown; eyes hairy; clypeal fovea deep and rounded; labrum conspicuous; palpi pale yellowish; scape brownish testaceous, the flagellum wholly black. Thorax rugoso-punctate with whitish pubescence, the posterior half of the mesopleurae smooth, impunctate. Propodium wholly rugoso-punctate, with distinct median and lateral carinae, the latero-posterior angles prominent, giving an appearance of concavity to the posterior face of the propodeum. Anterior and median coxae brownish, posterior pair black, all trochanters, femora, and tibiae brownish testaceous, darkest above, all tarsi more or less dark brown, the two anterior pairs slightly testaceous. Wings hyaline, the costal, postmarginal, radius, first intracubital, apex of the median, and more or less of the discoidal veins and the stigma brownish; remainder of the venation paler. First dorsal tergite one and one-half times as long as wide, the sides parallel or nearly, second segment half the length of the first, the third still shorter. The first three dorsal segments are strongly rugoso-punctate, the first two entirely black and the third with a broad crescent-shaped black spot basally, its lateral angles and apex like the following segments and ventral surface testaceous.
Female. Scape, pedicel, and three basal joints of the flagellum brownish testaceous; mandibles reddish brown; all coxae as well as femorae, tibiae, and tarsi pale testaceous; wing veins and stigma brownish testaceous. Ovipositor exserted about the length of the abdomen. Otherwise like the male.
Type: No. 12758, U. S. National Museum.
Described from seven specimens, as follows: Three males from Jacksonville, Florida; one male from Cedar Point, Maryland; one male and one female from Long Island, New York, and one male from College Park, Maryland. The College Park specimen is in the collection of the Maryland Experiment Station; all others are in the United States National Museum. The male and female from Long Island are undoubtedly the specimens selected by Dr. Ashmead as types for the species.
Three illustrations of the male holotype can be freely accessed at the USNM Hyemnoptera Types (link here: http://usnmhymtypes.com/default.asp?Action=Show_Types&Single_Type=True&T...).
Modified from the original description (Gahan, 1912), with notes added by Jose Fernandez-Triana [those notes are added between brackets within the information taken from the original description]. An additional description can be found in Nixon (1965), those notes will also be added here in the future.
Male. Length 3.5 mm. Black, except legs and anal one-third of abdomen, which are brownish testaceous. Whole head, except occiput, strongly rugoso-punctate and covered with short whitish pubescence; mandibles blackish brown; eyes hairy; clypeal fovea deep and rounded; labrum conspicuous; palpi pale yellowish; scape brownish testaceous, the flagellum wholly black. Thorax rugoso-punctate with whitish pubescence, the posterior half of the mesopleurae smooth, impunctate. Propodium wholly rugoso-punctate, with distinct median and lateral carinae, the latero-posterior angles prominent, giving an appearance of concavity to the posterior face of the propodeum. Anterior and median coxae brownish, posterior pair black, all trochanters, femora, and tibiae brownish testaceous, darkest above, all tarsi more or less dark brown, the two anterior pairs slightly testaceous. Wings hyaline, the costal, postmarginal, radius, first intracubital, apex of the median, and more or less of the discoidal veins and the stigma brownish; remainder of the venation paler. First dorsal tergite one and one-half times as long as wide, the sides parallel or nearly, second segment half the length of the first, the third still shorter. The first three dorsal segments are strongly rugoso-punctate, the first two entirely black and the third with a broad crescent-shaped black spot basally, its lateral angles and apex like the following segments and ventral surface testaceous.
Female. Scape, pedicel, and three basal joints of the flagellum brownish testaceous; mandibles reddish brown; all coxae as well as femorae, tibiae, and tarsi pale testaceous; wing veins and stigma brownish testaceous. Ovipositor exserted about the length of the abdomen. Otherwise like the male.
Type: No. 12758, U. S. National Museum.
Described from seven specimens, as follows: Three males from Jacksonville, Florida; one male from Cedar Point, Maryland; one male and one female from Long Island, New York, and one male from College Park, Maryland. The College Park specimen is in the collection of the Maryland Experiment Station; all others are in the United States National Museum. The male and female from Long Island are undoubtedly the specimens selected by Dr. Ashmead as types for the species.
Three illustrations of the male holotype can be freely accessed at the USNM Hyemnoptera Types (link here: http://usnmhymtypes.com/default.asp?Action=Show_Types&Single_Type=True&T...).