60 PROCEEDIXGS OF TilK NATIONAL MUSEUM. vol. G3. 



number a vial containing many specimens. The other series consists 

 of seven specimens from Islington, Massachusetts, reared May 20, 

 1915, from pine twigs. Pitch and white pine are mentioned in the 

 notes, but I do not know which has connection with the Platygasters. 

 I also have another series of six specimens from Tryon, North Caro- 

 lina, reared from pine and recorded in the Bureau of Entomology 

 under Hopk. U. S. No. 1483c. 



This species is a very interesting one. It is unique among our 

 species in having the notauli absent. The peculiar structure of the 

 scutellum recalls abberational forms of P. vernalis Myers, and it may 

 be that forms will be found with the scutellum deeply notched. I 

 have found some variation in color. The types are dark amber 

 colored, while much of the more recent material has the body shining 

 black. 



26. PLATYG.\STER ERROR Fitch. 



Platygaster error Fitch, Sixth N. Y. Rep., p. 76, pi. 1, fig. 4. 

 Anopedias error Fitch, Ashmead, Bull. 45, U. S. Nat. Mus., 1893, p. 291. — Brues, 

 Bull. 22, Conn. Geol. Nat. Hist. Surv., 1916 (1917), p. 533. 



Female. — Length 1.22 mm. Body polished, without definite sculp- 

 ture; head a little wider than the thorax, not quite twice as wide as 

 long, scarcely emarginate posteriorly; frons polished; low ridge sepa- 

 rating vertex from occiput shagreened, otherwise head is without 

 sculpture; antennae slender, considerably longer than the head and 

 thorax united; pedicel twice as long as wide, ns long as the two fol- 

 lowing joints united; fourth joint twice as long as the third, as long 

 as the fifth, not quite twice as long as wide; sixth joint as long as 

 the fifth, indistinctly wider; seventh, eighth, and ninth joints slightly 

 longer and wider, subequal in length and width; tenth as wide as 

 ninth, a little longer; thoracic ratio: length 21 (0.400 mm.), width 

 14, height 10; mesonotum subconvex; notauli deep, nearly parallel, 

 widely separated and curving outwardly in front of the scutellum; 

 scutellum a trifle longer than wide, polished, sparsely pubescent, 

 evenly convex; scutellum separated from the mesonotum by a deep, 

 narrow, impressed line, its surface on a level with that of the meso- 

 notum; abdomen elliptical, slightly narrower than the thorax, a little 

 over twice as long as wide, as long as the head and the thorax united; 

 first segment finely fluted, not much wider than long, the dorsolateral 

 ridges distinct; second tergite as \nde as long, strongly narrowed 

 anteriorly from its apex; foveae small, short, the striae short and 

 continuous across the base of the segment; segments following the 

 second polished, united not quite as long as the second; wings hya- 

 line, with a rather long marginal fringe on both pairs. Black- 

 antennae of a uniform dark brown color; legs brown, the tibiae 

 and tarsi somewhat lighter. 



