1907.] Briies, Xorth American Parasitic Hymenoptera. 
101 
sides. Abdomen oval, shining- black. Leg's stout, tarsal claws with a 
large triangular pointed tooth at the base which is very larg-e and 
long-er than the claw. Wings faintly tinged with fuscous ; stigmata 
piceous ; veins fuscous ; radial vein reaching- nearl^^ half-way from the 
stigma to the wing tip ; basal nervure broken at the middle, the closed 
discoidal cell as large as the stigma, its cubital side the shortest. 
Brownsville, Texas. Mr. Schaeffer. 
This form is related to P. flavicoxis Kieffer, from Nicaragua, 
but the mandibles are quadridentate and there is a longitudinal 
discal carina on each side of the median smooth space on the 
metanotum. It differs from P. cclhilaris Say, by the much shorter 
pronotum, as I have identified Say's species. It is evident, how- 
ever, that what Kieffer rediscribed as ccUularis (Berliner Entom. 
Zeitschr, L., p. 254 (1905) is still another species different from 
the one here described. 
Chelogynus schaefferi sp. nov. 
Female. Leng'th 5 mm. Black ; base of antennae, mandibles and 
clypeus yellowish ; prothorax, four anterior legs and the coxa? and 
basal parts of the femora of the posterior pair bright ferruginous. 
Head not quite twice as wide as thick, the vertex distinctly convex. 
Antennae 10-jointed, the scape distinctlj^ shorter than the first flagellar 
joint, which is twice as long as the pedicel, but distinctly shorter than 
the second and third together. Scape, pedicel and first two flagellar 
joints ferruginous, following black, the black joints being distinctly 
thickened. Front and vertex rugulose. Face and clj^peus with a fine 
median keel between the antennae. ]Mandibles pale yellowish, with 
black teeth. Head behind and cheeks rugulose, not at all striate below, 
palpi black. Prothorax bright ferruginous, smooth and polished, with 
scattered punctures ; as long- as the mesonotum and scutellum together. 
Eemainder of thorax black, mesonotum and scutellum shining and 
with very sparse punctures. INIesonotum with four furrows ; scutellum 
with a transverse crenulate impressed line at its base, and another 
simple one separating it from postscutellum. ]Metathorax rugulose, 
its posterior face nearly smooth above and faintly transversely acicu- 
late below. Pleurae rugulose. Abdomen entirely shining bluish black. 
Chela of anterior tarsus reaching nearly to the base of the second 
tarsal joint, whitish, dark at the tip, somewhat curved, especially at 
