TWO GEXERA OF CHALCID-FLIES^ — GAHAN 357 



club nearly equal to three preceding segments together. Whole head 

 with distinct sculpture, which is slightly shallower on frons than 

 elsewhere; propodeum smooth and bare except for a few moderately 

 long hairs laterad of spiracle. Marginal vein not more tlian twice 

 as long as stigmal vein and no longer than postmarginal vein; base 

 of forewing a little more sparsely ciliated than outer portion, with 

 a bare area along the posterior margin. 



Other characters in both sexes as described for fronfalu-, new 

 species. 



Redescribed from the types and many specimens of both sexes 

 reared from spider egg sacs collected at Los Angeles, Santa Ana, 

 Riverside, and Orange, Calif., and at Tempe, Ariz. 



10. ARACHNOPHAGA FRONTALIS, new species 



Very similar to picea (Howard) but may be distinguished by the 

 characters given in the key. 



Female. — Length 4.4 mm. Color mostly blackish; oral region, pre- 

 pectus, tegidae, sutures about base of wings, scutellum, and legs red- 

 dish testaceous to dark brown ; mesopleuron dark reddish varying to 

 brownish black; palpi black; antennal scape pale testaceous, flagellum 

 black; abdomen mostly black but mixed with some reddish basally; 

 ovipositor sheaths uniformly yellowish testaceous; base of forewing 

 including entire costal cell hyaline, except for a slight fuscous stain 

 in basal angle; wing medially with a dark-fuscous band embracing its 

 whole width from a little proximad of base of marginal vein to apex 

 of stigmal vein, the apical portion of wing sub fuscous ; hind wing en- 

 tirely hyaline. 



Head, viewed from in front, as long as broad, narrower below than 

 above; cheeks nearly straight; eyes converging dorsally; frons equal 

 in width to approximately one-third the greatest width of head; 

 .scrobes very shallow, poorly defined; frontal ledge extending from 

 antennal fossa to lower eye margin sharply cariniform; malar space 

 equal to a little less than half the length of eye ; malar furrow delicate 

 but complete; ocelli in an obtuse triangle; ocellocular line equal to 

 very nearly the diameter of an ocellus ; head, in dorsal view, thin an- 

 teroposteriorly ; vertex not abrupty truncate behind, forming with 

 occiput a slightly rounded angle; whole head strongly reticulate- 

 punctate: frons dull, clothed with pale hairs, which are somewhat 

 longer along the lateral margins than on median portion; cheeks with 

 numerous rather coarse blackish hairs. Antenna long; scape cylin- 

 drical, slightly curved, reaching to level of front ocellus; pedicel 

 about two and a half times as long as broad; ring joint longer than 

 broad; first funicular segment about equal to pedicel, following seg- 

 ments successively a little shorter, the seventh funicular segment sub- 



