NO. 21 no. RETL'^ION OF THE GENUS APHYCVS—TUIBERLAKE. 569 



joint. Wings uniformly ciliated, the oblique hairless streak narrow 

 and nearly reaching the posterior border of the wing; stigmal vein 

 forming an angle of about 45° with the postmarginal. Ovipositor 

 protruded about one-half the length of the abdomen. Length, 0.85 

 mm., exclusive of ovipositor. 



Head and thorax shining black but not metallic; the metanotum 

 and pi'opodeum browner; dorsum of abdomen pale brown, the venter 

 dusky yellowish. Antenn al scape and f unicle brown, the pedicel paler 

 brown, the club yellowish wliite. Legs uniformly pale straw yellow, 

 the last joint of the tarsi brownish. Exserted part of the ovipositor 

 brownish yellow, becoming blackish at apex. Wings hyaline, the 

 veins pale brownish. 



Male. — Very similar to tine female, but the front and vertex a little 

 wider, not quite twice as long as wide; the ocelli with posterior pair 

 slightly farther apart than the distance from either to the anterior 

 ocellus. Other structural characters apparently identical, as nearly 

 as can be made out in a single poor specimen. Coloration the same, 

 except the abdomen is blackish brovv^n, a little paler on the venter. 

 Length, 0.65 mm. 



Described from a female and male (type and allotype) reared from 

 a Dactylopiine coccid on Elymus, August 16-21, 1912, Kimballs, 

 Utah (C. N. AinsHe), Webster No. 8823. 



Type.— Cat. No. 19115, U.S.N.M. 



Genus PSEUDAPHYCUS Clausen. 

 rseudaphycus Clausen, Bull. 258, Cal. Agric. Exp. Stat., 1915, p. 41. 



Comes closest to BotJiriocraera, but differences in the shape of the 

 head and the sculpture will serve to separate the species so far known. 



Female. — Head as seen from the side more distinctly triangular in 

 outline than in Botliriocraera; the dorsal aspect considerably less 

 rounded, the plane of the front meeting the plane of the face at a 

 right angle or but little more (considerably more in Botliriocraera), 

 the angulation between the two rounded; width of head about equal 

 to vertical length; face and cheeks usually long, but sometimes short- 

 ened; antennal scrobes usually pronounced, and meeting above as in 

 Bothriocracra; eyes large, imperfectly oval, being wider anteriorly; 

 occiput moderately to slightly concave, the neck inserted a little 

 above the center; vertex rather narrow, the ocelli in an equilateral or 

 acute-angled triangle, and the posterior pair at least twice their own 

 diameter from th.e occipital rim. Mandibles rather long and slender, 

 tridentate, the middle tooth longest, the other two nearly opposite 

 each other and sul)e(^ual. Antennae of the same type as in Botlirio- 

 craera. Structure of the thorax and abdomen the same, but the latter 

 more elongate ovate; ovipositor more or less protruded. Legs some- 

 what longer. Wings fully developed but narrow; the submarginal 



