636 . PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 50. 



39. APHYCUS LUTEOLUS, new spedes. 



Figs. 28, 45. 



Aphycus flavus QUAYLE (not HOWARD), Bull. 214, Cal. Agric. Exp. Stat., 1911, 

 p. 476, figs. 28, 30. QUAYLE and RUST, Bull. 223, Cal. Agric. Exp. Stat., 

 1911, pp. 190, 194, figs. 14, 18. 



Aphycus species near flavus TIMBERLAKE, Journ. Econ. Ent., vol. 6, 1913, p. 294. 



Female. Front and vertex twice as long as wide; ocelli in an 

 acute-angled triangle, the posterior pair about their own diameter 

 from the eye margin; antennal scrobes rather deep and distinct; 

 pubescence of eyes sparse and extremely short and fine. Antennal 

 scape flattened but not expanded, very nearly linear with the lowes 

 margin slightly curved, about four times longer than wide; pedicel 

 about as long as the first three funicle joints combined; first five 

 funicle joints subequal in length, the sixth slightly longer, all grad- 

 ually increasing in width so that the sixth is twice as wide as the 

 first and all wider than long with the first two less distinctly so; 

 club oval, rather pointed at apex, about one third wider again than 

 the last funicle joint and as long as the last five preceding joints 

 combined. Wings uniformly ciliated ; oblique hairless streak widened 

 and interrupetd below, the cut off portion uniting with a distinct 

 branch of the basal hairless streak. Length: 0.7 to 1.1 mm. 



General color above pale clay yellow, the front and vertex some- 

 what more orange yellow; face, cheeks, and underparts brighter 

 yellow or nearly chrome lemon; concealed part of pronotum, a dot 

 on each corner of collar, posterior margin of tegulae and the sutures 

 of mesonotum to a more or less degree blackish brown; collar of 

 pronotum and tegulae otherwise yellowish white; metanotum, 

 propodeum and most of the basal half of dorsum of abdomen dilute 

 blackish brown. Antennae concolorous with the face, with a large 

 spot on scape near apex above, base of pedicel on upper side, first 

 three funicle joints and lower side of fourth, and basal half of club 

 blackish. Legs concolorous with the underparts with the apex 

 of last joint of tarsi blackish. Wings hyaline, the veins pale yellow- 

 ish. 



Male. Front and vertex about one-half longer again than wide; 

 ocelli in a slightly acute-angled triangle, the posterior pair about 

 their own diameter from the eye margin. Antennae as in female 

 but a little slenderer. Length: 0.7 to 0.8 mm. . f 



Coloration as in the female except for the following details: Front 

 and vertex chrome lemon and concolorous with face and cheeks; 

 dorsum of abdomen with the dark markings more extensive and 

 deeper, often entirely blackish brown except on lateral margins 

 posterior to the vibrissae; the flagellum of antennae entirely blackish 

 brown. 



