NO. 2136. REVISION OF THE GENUS APHYCUSTIMBERLAKE. 571 



venter of abdomen paler yellow; metanotum, propodeum, and 

 dorsum of" abdomen except the lateral and posterior yellowish 

 margins blackish brown; sutures of mesonotum narrowly lined 

 with blaok, especially the suture between pronotum and mesos- 

 cutum; collar of pronotum otherwise whitish or sometimes entirely 

 so; tegulae pale yellowish, slightly brownish on posterior margin. 

 Antennal scape, pedicel, and first one or two joints of the funicle 

 dusky yellowish, with the margins of the scape narrowly blackish; 

 remainder of the funicle and the extreme base of club black, club 

 otherwise yellowish white. Legs concolorous with the underparts, 

 the outer surface of the femora and tibiae slightly dusky, the last 

 joint of the tarsi blackish. Exserted part of ovipositor yellowish, 

 changing to blackish at apex. Wings hyaline, the veins pale 

 brownish. 



Male. Similar to the female, but the antennae slightly slenderer, 

 and the dorsum of the abdomen more blackish with the pale margins 

 orange yellow. Length: 0.6 to 0.9 mm. 



Described from ten females and five males (type, allotype and 

 paratypes a to m) reared from a Dactylopiine coccid on Stipa, Las 

 Vegas, New Mexico, Jan. 16 to March 20, 1912 (C. N. AinsUe), 

 Webster No. 6690; and three females, two males (paratypes n to r) 

 reared from a Dactylopiine coccid on Elymus condensatus, Kimb alls', 

 Utah, Aug. 13-24, 1912 (C. N. Ainslie), Webster No. 8823. Paratypes 

 e, /, o, and p more or less broken, the rest of the specimens in good 

 condition, four of them being mounted on slides. 



Type. Cab. No. 19116, U.S.N.M. 



2. PSEUDAPHYCUS PROSOPIDIS, new species. 



Female. Front and vertex about twice as long as wide; dorsal 

 orbits of eyes parallel; ocelli in an acute-angled triangle, the posterior 

 pair nearly touching the eye margin; no pubescence on the eyes. 

 Antennal scape linear, slightly narrower at base; pedicel as long as 

 the first four funicle joints combined, wider at apex than in P. 

 angelicus; funicle joints one to three shorter than the last two, but 

 all wider than long, the last two about twice as wide as the first; 

 club oval, obliquely rounded at apex, as long as the funicle and a 

 little wider than the preceding joint. Wings uniformly ciliated; 

 oblique hairless streak interrupted near its lower end; no bristle- 

 like hairs on any of the veins. Ovipositor barely protruded. Length : 

 0.8 mm. 



Front, vertex and mesonotum dull orange yellow, the apex or 

 the scutellum dusky; face, cheeks, and underparts yellowish white; 

 concealed part of occiput and of the pronotum blackish; the meta- 

 notum, propodeum, and dorsum of the abdomen brownish black; 

 tegulae and collar of pronotum whitish, former with lower posterior 



