i64 Annals Entomological Society of America [Vol. XII, 



brownish-black, more or less metallic; scape, all tibias, and tarsi reddish 

 testaceous; ovipositor sheaths black; wings hyaline, venation pale 

 yellowish. 



Male. Length 2 mm. Antennal pedicel a little shorter than the 

 first funicle joint; first funicle joint slightly broader than long and not 

 longer than the second ; joints beyond the second very slightly diminish- 

 ing in length; sculpture of scutellum like that of female but the cross- 

 furrow not distinctly impressed; propodeum faintly rugulose with a 

 very weak median carina ; abdomen a little shorter than the thorax, the 

 tergites not distinctly emarginate medially; scape dark above, reddish 

 testaceous beneath; all tibiae brownish-black; tarsi pale yellowish. 

 Otherwise like the female. 



Type locality, Tempe, Arizona. Type, Cat. No. 22298, 

 U. S. Nat. Mus. 



Female type, male allotype and two male paratypes reared 

 by Mr. V. L. Wildermuth from galls of a Cecidomyiid on 

 Suaeda species and recorded under Tempe No. 2741. 



Family PTEROMALID^. 



Pseudocatolaccus americanus, new sper^iei^. 



This species is apparently very similar to Pseudocatolaccus asphon- 

 dyli(B Masi, Boll. Lab. Zool. Agr., Portici, 3, 190<S, p. 139 ( — Pteromalus 

 polyphagus Foerster, according to Kurdjumov, Rev. Russe d'Entom. 

 13, 1913, p. 7) differing principally from the description of that 'species 

 in its smaller size, somewhat shorter malar space, slightly shorter 

 antennal joints and the more acute second and third teeth of the 

 mandibles. 



Female. Length 2.5 mm. Head and thorax strongly reticulate- 

 punctate, the sculpture of mesonotum som.ewhat stronger than that 

 of the head. Head fully four times as broad as long, as viewed from 

 above; ocelli in a low triangle, postccellar line a little shorter than the 

 ocellocular line; as viewed from in front the head is distinctly broader 

 than long, antennas inserted above the lower extremity of eyes, malar 

 space shorter than the height of eye, clypeus irregularly striate, its 

 anterior margin sinuate ; cheeks at base of mandibles distinctly concave ; 

 mandibles four-toothed, the outer tooth acute, two median teeth 

 subacute, inner tooth blunt at apex; antennal scape cylindrical and not 

 reaching the anterior ocellus; pedicel conical and longer than thick; 

 three ring-joints strongly transverse, about equal in length but increasing 

 in breadth from first to third; funicle five-jointed, the first joint about 

 one-third longer than broad, following joints decreasing slightly in 

 length, the fifth subquadrate or very slightly broader than long; club 

 slightly thicker than the funicle, three-jointed, and about twice as 

 long as the fifth funicle joint; mesoscutum much broader than long, the 

 parapsidal grooves weakly impressed on the anterior half; scutellum 



