NO. 2332. VARIOUS NEW SPECIES OF HYMENOPTERA—GfRAULT. 203 



ASTICHOMYHA LATISCAPUS Girault. 



Astichomyiia latiscapus Girault, Descr. Chalc. Var. cum Obsefv., 1917, p. 4. 



Genotype. 



Length. — 1.00 mm. 



Dark metallic green, the wings hyaline, the knees, tibiae (except 

 middle tibiae shortly at base) the tarsi white, also the pedicel; rest of 

 antennae black. Scaly punctate, the propodeum glabrous. Funicles 

 1-2 subequal, somewhat longer than wide and the pedicel, the club 

 joints shorter, 2 quadrate. Ring-joint minute. 



One female reared with some tetrastichines from small spherical 

 galls on avocado leaves, Tampico, Mexico, January, 1914 (D. L. 

 Crawford) . 



Types.— C&t. No. 20835, U.S.N.M., the female on tag; the head, a 

 pair of wings, a cephalic leg, and a middle tibia on a slide. 



DIAULINOPSIS CARLYLEI (Girault), 



Diaulinus carlylei Girault, Descr. Hym. Chalc. Var. cum Observ., 1917, p. 6, 



Female. — Length, 1.30 mm. 



Dark metallic green, the wings hyaline; apex of femora rather 

 broadly, knees cephalic tibiae excepting for a narrow cinctus just out 

 from base about as long as its distance from base, basal half of middle 

 tibiae excepting for a similar basal cinctus, apex very narrowly of 

 middle and caudal tibiae and a little less than proximal half of caudal 

 tibiae (except from the narrow cinctus near base), yellowish white; 

 tarsi dusky, whitish at base. Body finely scaly reticulate. Trace of 

 a very delicate median carina on tlie propodeum, the spiracle round, 

 not at cephalic margin. Postmarginal vein nearly two-thirds the 

 length of the marginal, longer than the rather long stigmal. Funicle 1 

 twice longer than wide, 2 somewliat shorter; club quadrate, the others 

 a little shorter, 3 with a distinct nipple whose proximal half is thicker 

 than the other and which is distinctly shorter than joint. Pedicel a 

 little smaller than joint 3. Mandibles 5-dentate. Scape cylindrical, 

 not long. Agreeing with the generic description. 



Described from one female in the United States National Museum 

 from Alameda County, California. (Coquillett) . 



Types.— Cat. No. 20862, U.S.N .M., the specimens on tags and a 

 slide bearing a caudal leg and a head. 



Family EUCHARIDAE. 



ISOMERALIA AZTECA, new species. 



Female.— About half the size of coronata Westwood (a specimen 

 in the United States National Museum from Brazil) and agreeing 

 with that species except as foUows: The distal third of the abdomen 

 is rufous; the scutum is more coarsely cross-striate ; the vertex and 



