572 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.50. 



comer brown, latter with a brown dot on each corner. Antennal 

 scape, pedicel, and first four fimicle joints brown, the base of the 

 scape shading into whitish; fifth funicle joint and club white. Legs 

 yellowish white, the tarsi more yellowish with apex of last joint 

 blackish. Wings faintly clouded with browm, but lacking the 

 hyaline cross band of P. angelicus, the whole apex of wing beyond 

 tip of stigmal vein more faintly clouded, the clouded area extending 

 proximad to just beyond the hairless streak, and an additional 

 small spot of pale brown at base of wings along the posterior border; 

 veins pale bro\\Tiish. 



Male. — Not kno\vn. 



Described from eight females (type and paratypes) reared from 

 Pseudococcus prosopidis (Cockerell), Aug. 4, 1898, Mesilla, New 

 Mexico (T. D. A. Cockerell), Insectary No. 8182°.i 



Type.— Cat. No. 19117, U.S.N.M. 



3. PSETJDAPHYCTJS WEBSTERI, new species. 



Female. — Very close to P. angelicus but differs as follows: Dorsal 

 orbits of eyes parallel and not diverging anteriorly; the anterior 

 ocellus exactly at the center of the front and vertex. A bristle-like 

 hair at base of marginal vein and another near apex of the postmar- 

 ginal; oblique hairless streak not interrupted. 



Orange yellow of front, vertex, and mesonotum brighter; the 

 anterior margin of mesoscutum black, and the axillary sutures lined 

 with black; face, cheeks, and underparts pure white, the venter of 

 abdomen at the middle slightly brownish, the brown band on cheeks 

 more distinct than in P. angelicus, and follows around to the anterior 

 orbits of eyes. Antennae the same except that the fifth funicle joint 

 is brownish instead of black. Legs white, the anterior femora dusky 

 along their upper margin near apex, hind femora with nearly the 

 whole lower surface slightly dusky ; front and middle tibiae with one, 

 the hind tibiae with two wide, but faint dusky annuli, and an addi- 

 tional, very narrow annulus at the apex of the tibiae, especially of 

 the middle pair; tarsi yellowish and not much infuscated on the last 

 joint. Wings clouded as in P. angelicus, the veins darker. 



Length: 1.2 mm., exclusive of ovipositor. The maximum size of 

 P. angelicus does not exceed 1 mm., apparently. 



Described from one female (typo) reared from the stems of Elymus 

 virginicus, in Feb., 1903, Villa Ridge, Illinois (F. M. Webster), Vv^eb- 

 ster No. 1924b. Undoubtedly from a Dactylopiine coccid on the 

 Elymus. 



Type.—Csii. No. 19118, U.S.N.M. 



1 Numbers on labels of specimens refer to notes on file at the Bureau of Entomology unless otherwise 

 stated. 



