194 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lu 



joints cylindrical but slightly bulging in center on ventral side on last 

 six joints; ratio of length of first four joints is 40:12:50:50; interoc- 

 ular distance at vertex and clypeus almost equal; the interocular 

 distance at greatest width is 0.64 the transfacial distance; the head 

 not quite 1.2 as wide as long; the lateral ocelli as far from each other 

 as from eyes; the front, mesoscutum, scutellum strongly punctured, 

 the postscutellum strongly striate on sides; the propodeum slightly 

 striated on posterior surface; wings hyaline, veins black. 



Length head and thorax 4.6 mm., abdomen 4.0 mm., forewing 7.6 

 mm., rear wing 5.3 mm.; length genitalia 0.90 mm., width 0.64 mm.; 

 subgenital plate lost. 



Holotype male: Caracas D. F., Venezuela, Aug. 22, 1930, H. 

 Pittier 1578 (USNM). 



Allotype female. Color of body and legs as in the male; the hairs 

 on body about the same; punctation not quite as strong; pygidium 

 smooth and shining; clypeus extended in front in middle with a 

 hairless rim not quite 2.0 as wide as long; head 2.0 as wide as long; 

 interocular distance 0.55 the transfacial distance; ratio of length of 

 first four antenna! joints 50:16:80:60; upper and lower interocular 

 distances 1.1. 



Length head and thorax 4.9 mm., abdomen 4.9 mm., forewing 8.6 

 mm., rear wing 6.3 mm. 



Allotype female: Rio de Janeiro, Brazil, January 1939, Yel. Fever 

 Serv. MES, R. C. Shannon (USNM). 



58. Auplopus ferrugineus, new species 



Holotype female. Whole body and legs a reddish color, except a 

 spot over ocellar region, two spots each side of base of pronotum, all 

 the mesonotum, the sides and posterior edges of scutellum and post- 

 scutellum, and the dorsal surface of propodeum are black; clypeus 

 rounded in front, 1.7 as wide as long; head slightly wider than long; 

 interocular distance 0.6 the transfacial distance; the lower interocular 

 distance 1.5 the upper, thus the eyes converging at the vertex; ratio 

 of length of first four antennal joints is 60:20:95:70; the second and 

 third antennal joints equal to vertex width; pronotum very slightly 

 angular on posterior edge; the anterior edge of wing very strongly 

 brownish the color extending backward through median cell and the 

 three cubital cells to the tip of wing, strongly contrasting with the 

 hyaline rear half of wing; basal and transverse median veins in fore- 

 wings and the cubitus and subdiscoidal veins in rear wings much 

 disjointed; the front of clypeus, coxae, and apex of abdomen with 

 some fah'ly long hairs; the propodeum long-haired, the head and 

 thorax with copious prostrate pubescence which appears golden 



