262 The Ohio Journal of Science [Vol. XVIII, No. 7, 



posterior margin of thorax. Abdomen smooth, polished, posterior seg- 

 ments with scattered stout hairs. Length, 2.5-3 mm. 



Male: Black, pubescent, tibise and tarsi of fore legs fuscous, tarsi 

 of middle and hind legs, except fifth joint which is fuscous, testaceous or 

 pale yellow. Head distinctly more than twice as wide as long, posterior 

 margin arcuate, occiput concave. Ocelli in a triangle, the anterior one 

 its diameter distant from the lateral ones which are much nearer to 

 each other than to the eyes. Eyes oblong, oval, pubescent. Antennae 

 of medium length, pubescent, scape twice the length of three, this twice 

 longer than two, very slightly longer than four, four to nine subequal, 

 nine somewhat smaller than four, ten slightly longer than nine and 

 pointed; clypeus arcuate, mandibles black except the brown teeth, 

 maxillary palpi dark brown, long, extending beyond the posterior 

 margin of the head, with three joints visible beyond the geniculation. 

 Head and thorax densely punctate. Mesonotum broad, wider than 

 long, with distinct parapsidal furrows which slightly converge and 

 extend to the posterior margin of the mesonotum being widely sep- 

 arated there; scutellum much smaller than mesonotum being nearly 

 square and only slightly wider than long; metanotum somewhat shorter 

 than scutellum, posteriorly rounded; propodeum rugose-areolated, 

 with median area defined by raised lines, wings hyaline, posterior wings 

 ciliate, clothed with very fine white hairs. Venation pale, subcostal 

 vein brown, radius curved, not reaching the wing margin, the distal 

 part shorter than the proximal, pterostigma, lanceolate; brown, often 

 white medianly. Legs of medium length. Abdomen polished black, 

 with scattered stout hairs laterally and posteriorly. Length, 1.5-2 mm. 



Described from two specimens. Columbus, Sandusky, 

 Ohio. Bred from Briicomorpha oculatus adults. 



4. P. schaeflferi (Bmes). 



Chelogynus schcefferi Brues, Bull. Wis. Soc, ser. 2 v. o, p. 101 (9 ), 1907. 

 Bacchus schcpfferi, Kieffer, Das Tierreich, 41 L. p. 45, 1914. 



Female: Black; base of antennae, mandibles and clypeus yellowish; 

 prothorax, four anterior legs; coxae and basal parts of femora of hind 

 pair bright ferruginous. Frons and vertex rugulose, prothorax, meso- 

 notum and scutellum, smooth and polished, with scattered punctures; 

 scutellum with transverse crenulate impressed line at its base. Pro- 

 podeum rugulose, the posterior face nearly smooth above. Abdomen 

 shining black. Body conspicuously whitish pubescent except flagellum 

 of antennse. Length, 5 mm. 



Huachuca Mountains, Arizona. Collected. 



P. schaefferi Var. a. (Brues). 



Chelogynus schcefferi Brues, Bull. Wis. Soc ser. 2 v. 5, p. 102 (9 ), 1907. 



Female: Colored like P. atriccps with entire thorax reddish, but 

 structurally similar to above. 



Brownsville, Texas. Collected. 



