ART. 15«. REVISION OF SUBFAMILY PLATYGASTEEIXAE FOUTS. 89 



the thorax, spatulate, rounded posteriorly, not quite twice as long as 

 wide ( 33 to 18 being the exact proportions) ; first tergite twice as long 

 as wide, elevated medially, the elevation rounded and traversed by 

 many longitudinal grooves; second tergite a little longer than wide, 

 almost twice as wide apically as basally, the sides slightly curved; 

 basal foveae rather deep, the striae reaching the middle of the seg- 

 ment, neither numerous nor strongly indicated; tergites three to 

 seven polished, subequal in length, each traversed by a row of punc- 

 tures; wings hyaline, with short cilia marginally. Black; antennae 

 dark brown; legs brown, the trochanters, tibiae and tarsi somewhat 

 lighter. 



Type locality. — Jacksonville, Florida. 



Type.-^Q^i. No. 2461, U.S.N.M. 



Described from the type. The females originally included in the 

 type series represent a new species and are now the types of my new 

 species Platygaster errans. 



54. PLATYGASTER EUURAE (Ashmead). 



Polygnotus euurae AsHUEAD, Bull. 45, U. S. Nat. Mus., 1893, p. 318. — Brues, 

 Bull. 22, Conn. Geol. Nat. Hist. Surv., 1916 (1917^ p. 540. 



Male. — Length 1.3 mm. Head twice as wide as long through the 

 middle, slightly emarginate behind, a little wider than the thorax, 

 occiput transversely striate, more finely than in virginievsis: cheeks 

 shagreened posteriorly; vertex subacute, aciculate laterally, nearly 

 smooth medially; interocellar area highly polished, very finel}^ acicu- 

 late; frons with fine diagonally directed wavy aciculae; flagellum a 

 little shorter than the thorax; pedicel less than twice as long as wide, 

 as wide as joint three, slightly narrower than joint four; three trans- 

 verse; joints four to nine subequal in length and width, distinctly 

 longer than wide, as long as the pedicel; ten a little longer than three 

 and four united, sharply pointed apically; thorax very short and 

 broad, nearly as wide as long, strongly convex above; pronotum 

 aciculate on sides; median area transverse, unsculptured, slightly 

 narrowed posteriorly; mesonotum shining, with the two anterior 

 carinae low but distinct; area to the sides of these carinae shagreened; 

 between them narrowly shagreened anteriorly; otherwise mesonotum 

 not sculptured; notauli distinct on basal half of mesonotum, the 

 median lobe as in virginiensis : scutellum as in virginiensis , slightly 

 flattened dorsally; metapleurae, propodeum and first and second 

 sternites densely covered with short silvery pubescence; first and 

 second tergites with a few scattered hairs; abdomen four-sevenths 

 times as wide as long, broadly rounded behind, a little longer than 

 the thorax; first tergite not quite twice as wide as long, elevated 



