600 PROCEEDINOi^ OF THE NATIONAL MUSEUM. vol.50. 



7. APHYCUS RILEYI, new species. 



Figs. 7, 38. 



Aphycus maculipes Howard (part), Bull. No. 5 (old ser.), U. S. Dept. Agric, 

 Bur. Ent., 1885, p. 18. 



Female. — Front and vertex varying from one-fourth longer again 

 than wide to twice as long as wide; ocelli in an equilateral triangle, 

 the posterior pair one-half to fully their own diameter from eye mar- 

 gin; antennal scrobes shallow and broad, the facial prominence but 

 slightly elevated; eyes hardly pubescent. Antennal scape about 

 twice as long as wide or narrower in smaller specimens, widest at or 

 just beyond the middle; pedicel as long as the first three funicle joints 

 combined; funicle joints all wider than long, the sixth about twice as 

 wide as the first, first three subequal in length and width, the last two 

 sUghtly longer, especially the fifth; club subrectangular, the apex 

 truncate or very bluntly rounded, about one-third wider than the last 

 funicle joint and as long as the five preceding joints combined. Wings 

 not uniformly ciliated, the cilia beneath stigmal vein and on the 

 apical fourth of wing heavy and dark colored, those on an intervening, 

 narrow, curved band weak and paler colored, the pale band inter- 

 rupted, however, on the upper margin of wing; oblique hairless 

 streak not reaching the lower margin of wing nor comiecting with the 

 almost obsolete basal hairless streak. Length: 0.75 to 1.3 mm. 



Upper part of face above the lower corners of eyes, front, vertex, 

 and mesonotum dark orange yellow, the anterior margin of the scutum 

 sometimes black; rest of face, cheeks, occiput, and venter of abdomen 

 sordid yellowish white; the pleura, collar of pronotum, and tegulae 

 more creamy white, with a brown dot on each corner of the pronotum, 

 and tegulae with their hind margin brown; concealed part of pro- 

 notum, the metanotum, propodeum, and dorsum of abdomen blackish 

 brown, the lateral margins of the latter sordid yellowish. Antennal 

 scape black, with base, apex, and a narrow line on upper margin, more 

 indistinct on the inner face, yellowish white; basal half of pedicel, 

 first two funicle joints, and club black; apex of pedicel and last four 

 funicle joints yellowish white. Legs sordid yellowish white, the 

 tibiae with two subinterrupted, brownish annuli varying somewhat in 

 intensity; last joint of tarsi blackish. Wings nearly hyaline, with a 

 ciliary infuscation on basal half and at apex, and an intervening, 

 narrow, curved, whitish band uicomplete on the anterior margin of 

 disk; the veins yellowish. 



Hale. — Front and vertex about one- third longer agam than wide; 

 ocelli in a slightly obtuse-angled triangle, the posterior pah* about 

 their own diameter from eye margin. Antennal scape much nar- 

 rower than in female, hardly over one-fourth as wide as long, but 

 lower margin rounded ; pedicel nearly as long as the fii-st four funicle 



