BRUES: PARASITIC HYMENOITEKA. 63 



lighter. Antennae extremely stout and thick; the scape large, cylindrical, 

 something over twice as long as wide; joints of the basal half of the flagellum 

 much wider Hum long; those beyond more neatly quadrate; in all the flagel- 

 lum is composed of about 24 joints; metathorax partially areolated, none of 

 the carinae very strongly elevated. Abdomen gradually thickened toward 

 the tip. Wings hyaline, the stigma 



dark and the veins light brown. Stigma .--^ ""Hn^n 



moderately broad, about two-fifths as ^^-v^/^ \ ^"^^^ 



broad as the marginal cell which is . """ f^ ^^s^\^^^ 



two and one-half times as long as \. (S^ 



broad. Areolet rather large, pentan- - 



gular, the vein closing it distinct but Fig. 47. — Orthocentrus defossus, sp- 



paler than the others; radial vein nov. Type. 



sharply bent over the areolet, its sec- 



tions nearly straight elsewhere. Discocubital vein very little curved; 



transverse median vein inserted a considerable distance beyond the basal 



vein, but little oblique. Legs stout, but the posterior femora are not over 



one-third as broad as long, and one-fourth shorter than their tibiae. 



Described from one specimen. 



Type.— No. 2238, M. C. Z., Florissant, Col. (No. 10,591, S. H. 

 Scudder Coll.). 



Camerotops solidatus, sp. nov. 



Sex? Length probably about 6 mm., the tip of the abdomen flaked off in 

 the specimen. Black, the abdomen beyond the petiole and the legs brown. 

 Antennae very stout and short; most of the joints quadrate, or barely wider 

 than long; those near the base a trifle more elongate. Thorax shining, the 

 sutures of the pleurae crenulate ; mesopleura with a very distinct carina along 

 its anterior margin. Metanotum only partly areolated, the pleural areas 

 being confluent. Abdomen sessile, although rather narrowly so; the first 

 segment very strongly convex above when seen in lateral aspect, with two 

 median carinae which reach two-fifths the way to the tip and a lateral one which 

 almost attains the tip. Legs very stout, the posterior femora nearly one-third 

 as wide as long. Wings hyaline, the stigma piceous, very broad and subtrian- 

 gular in outline. Radial nervure sharply bent at the insertion of the transverse 

 cubitus, its sections nearly straight, the second over three times as long as 

 the first. 



# 



Tijpe.— No. 2239, M. C. Z., Florissant, Col. (No. 8309, S. H. 

 Scudder Coll.). Described from one specimen only moderately well 

 preserved. However, its place in the tribe is certain and the generic 

 reference accurate beyond reasonable doubt on account of the broad 

 stigma and the mesopleural carina. 



