1915J Brues — Some New Parasitic Hymenoptera 9 



with straight base and sides, narrowed behind; its base with a series of three impres- 

 sions on each side, the lateral one largest and the median one smallest; disk with 

 very large, close-set punctures; apical margin with a series of small fovea?; lateral 

 margins carinate. Postscutellum, or base of metanotum produced into a l)identate 

 median process; margin separated at the base from the scutellum by a curved, 

 coarsely crenate line; its anterior margin carinate on each side, the carinae extend- 

 ing to the bidentate process; on each side of the process with a triangular areola, 

 below which the metathorax is densely white-hairy. Propleurse coarsely punctate 

 above. Smooth below; mesopleurse obliquely impressed medially with a series of 

 horizontal grooves, distinct around the edges, but obsolete near the middle of the 

 impression; mesosternum rather coarsely punctate; metapleuriK irregularly rugose. 

 Abdomen one and one-half times as long as the head and thorax together; of six 

 visible segments, gradually widening to the apex of the third, then gradually nar- 

 rowed to the truncate, bispinose apex; first segment one-third longer than wide at 

 the tip, which is one-third broader than the base; with two approximate longitudinal 

 carina; medially, which enclose a deep, smooth furrow; laterally with a carina which 

 extends backwards to the tip of the fourth segment; its surface like that of the 

 succeeding segments, pitted with coarse punctures which assume a very decided 

 longitudinal linear arrangement on the first to fourth segments; second segment 

 as long as broad at apex, narrower basally; third and fourth segments quadrate; fifth 

 smaller and narrowed at apex; sixth half as long, rounded at tip except for the two 

 spines. Legs slender. Anterior wings with the submarginal vein extending nearly 

 half the wing-length; marginal vein about five times as long as thick, almost as long 

 as the straight, oblique, knobbed stigmal vein; postmarginal vein twice as long 

 as the marginal; several other veins faintly indicated by thickenings; hair fringe 

 very short; tip of wing attaining the tip of the fifth segment of the abdomen. 



One specimen, Para, Brazil, Wm. M. Mann. This species is 

 very different in the sculpture of the head and abdomen and in 

 wing venation from the Brazilian H. rufidorsum described from 

 Rio de Janeiro by Kieffer.^ 



RuniLY DIAPRIID.E. 



Xanthopria gen. nov. 



Head rounded, produced at the insertion of the antennae. Eyes bare; ocelli in 

 a triangle, far from the eye-margin. Antennae 11-jointed, gradually swollen toward 

 the tip, the club, although not distinctly marked off, including five or six joints. 

 Mesonotum without parapsidal furrows, its posterior margin straight or slightly 

 arcuate; axillae somewhat elongate oval, but with the anterior and posterior mar- 

 gins more or less parallel; scutellum with a large oval or trapezium-shaped depres- 

 sion at the base, convex, with a median carina posteriorly which is sometimes ele- 

 vated to form a distinct tooth. Metathorax with a median, backwardly-curved 

 tooth or spine at the base; with median, lateral and transverse posterior carinae; 

 the posterior angles somewhat produced. Abdomen with the petiole about as 

 wide as long; second segment very large, others extremely short; fore wings with- 



lArk. f. Zool. vol. 1, p. 533. (1904.) 



