PROC. ENT. SOC. WASH., VOL. 20, NO. 2, FEB., 1918 25 



as the three last joints of the funicle combined; forewings moderately 

 broad with short moderately dense discal cilia; abdomen a little longer 

 than the head and thorax and rather robust; legs slender. Head, thorax, 

 and abdomen except the petiole polished black; antennal funicle and club 

 black or blackish, the basal joints of funicle often slightly testaceous; 

 scape, pedicel, legs including all coxae, and the basal joint of abdomen 

 pale testaceous; apical joint of all tarsi blackish; the middle and front 

 femora sometimes slightly infuscated; wings hyaline, venation testaceous. 

 Male. Length .88 m. Antennae much longer than the whole body, the 

 first funicle joint very slightly shorter than the second; second and third 

 funicle joints nearly equal, the joints beyond the third to apex of antennae 

 tmbequal and very slightly shorter than the third; other characters as in 

 the female. 



Type locality. Tempe, Arizona. 



Type Cat. No. 21703, U. S. N. M. 



Host. Eggs of Stictocephala festina Say. 



Eighteen females bearing Tempe No. 2739 and twelve males 

 bearing Tempe No. 2738, all reared by Mr. V. L. Wildermuth 

 and recorded in the Bureau of Entomology under Webster No. 

 6190. Type, allotype, thirteen female paratypes, and nine para- 

 type males mounted on slides in balsam. Four female and two 

 male paratypes mounted on card points. The type series was 

 evidently reared along with the types of Gonatocerus ornatus 

 Gahan, ante, and from the same material, since the rearing num- 

 bers are identical for both series of specimens. 



Family TRICHOGRAMMATIDAE. 

 Abbella (Ittys) perditrix, new species. 



Very similar to Abella (Ittys) ceresarum (Ashmead) Girault but 

 differs by being smaller in size, paler in color, the forewings distinctly 

 less strongly ciliated discally, the fuscous stain below the stigmal 

 vein entirely absent, the discal dilation of hind wing more re- 

 duced. Differs from sub/lava Girault and allies in having the 

 funicle joints distinctly longer, and a transverse row of discal cilia 

 behind the stigmal vein. Differs from nympha Girault in the 

 shorter marginal cilia of the forewing. 



Female. Length .85 mm. Antennae rather long, scape normal, pedicel 

 longer than the whole funicle, approximately twice as long as broad; one 

 distinct ring-joint and what appears to be a second which is distinctly 

 separated from the base of the first funicle joint; first funicle joint longer 

 than broad, the apex somewhat obliquely truncate, its upper margin 

 longer than the lower; second funicle joint not longer than broad, nar- 

 rower at base than apex; club long, narrowly fusiform, slightly thicker at 

 base, distinctly three-jointed; the joints subcqual in length, joints one 



