146 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



funicle subequal, the first slightly longer ; joints of club fused, the apex 

 produced into a spine-like process ; propodeum punctured, lateral folds 

 represented only by basal foveas ; mesepimeron with a depressed area 

 with thimble-like punctures, above this a single fovea and one below; 

 below insertion of wings a double fovea; rest of mesopleura- almost un- 

 sculptured; coxas metallic bluish, femora brown, rest of legs, including 

 trochanters, honey-color; abdomen yellowish, the sides more or less 

 dark brown. . 



Male. Length about 2 mm.; flagellum of antenna; over 1 mm. Sim- 

 ilar to the female but more purplish: legs brown, abdomen dark brown; 

 antennas elongate, dark brown, the funicle seven-jointed, the first joint 

 two-thirds as long as the scape; apical spur on club as in female; mes- 

 opleura; and metapleuree mostly punctured. 



One of each sex reared from Mordellistena ustnlata by \V. 

 J. Phillips, Bureau of Entomology, U. S. Department of Ag 

 riculture; the female from Lafayette, Indiana (under Web- 

 ster No. 5181), and the male from Wilmington, Ohio (under 

 Webster No. 6332). 



Type: Cat. No. 13368, U. S. National Museum. 



NEW SOUTH AMERICAN NEUROPTEROID INSECTS. 



BY NATHAN BANKS. 



During the past two years I have received a considerable 

 number of these insects from Colombia, collected by Mr. A. 

 H. Fassl in the western part of that country. Dr. Esben 

 Petersen, of Silkeborg, Denmark, has kindly sent me dupli- 

 cates from the Jensen-Haarup expedition to Argentina. The 

 material in these two lots, and a few others, form the basis of 

 the following descriptions. The altitudes of the localities in 

 Colombia are in meters, as on the labels sent with the speci- 

 mens. 



Family MYRMELEONID^. 



Brachynemurus argentinus, new species. 



Face pale yellowish, vertex pale brown, rather dark in front, not defi- 

 nitely marked ; antenna; pale brownish, tips darker; pronotum pale 

 yellowish, with a pale brown stripe each side, leaving a narrow median 

 line ; thorax pale yellowish, anterior lobe with two dark spots behind, 

 larger spot over base of each wing and on the pleura, a double dark spot 

 on each scutellum ; abdomen pale on basal part, dark or black toward 

 tip, all densely white-haired; legs very pale yellowish, tips of last tarsal 

 joint black, rest unmarked, spurs longer than basal two joints together. 

 Wings hyaline, venation yellowish, longitudinal veins interrupted with 

 black spots and a small cloud at end of each cross-vein in the fore wings, 

 the median vein in both pairs pale, almost unmarked, a larger spot 



