1919] Gahaii: Chalcid-Wasps 163 



Type locality, Tempe, Arizona. Type, Cat. No. 22297, 

 U. S. Nat. Mus. 



Host, Aspho7idylia websteri Felt. 



Type female reared by V. L. Wildermuth from galls of the 

 alfalfa midge and recorded under Webster No. 7268, Tempe 

 No. 2264. One paratype with the same data except Tempe 

 No. 2251. Allotype, four male paratypes and five female 

 paratypes reared by E. G. Smyth at Tempe from the galls 

 of the same insect and recorded under the same Webster 

 number. Wing of a female paratype mounted on a slide. 



Syntomaspis umbilicata, new species. 



In the sculpture of the thorax resembles elegantissima Ashmead, 

 and warreni Cockerell, but is easily distinguished from both by the 

 much shorter funicle joints, metallic colored femora and the smaller 

 size. 



Female. Length 2.5 mm. Head viewed from in front about as 

 long as broad; face strongly sculptured with large shallow punctures; 

 antennal depression deep and nearly smooth within, the antennas 

 separated at base by a carinate ridge; postocellar line equal to twice 

 the ocellocular line, the lateral ocelli not farther from the eye-margin 

 than the diameter of an ocellus; antennal pedicel conical, about equal 

 in length to the first funicle joint; ring-joint a little more than twice 

 as broad as long; first funicle joint nearly quadrate, following joints 

 diminishing very gradually in length, the last about two-thirds as long 

 as broad; club three-jointed, not broader than the funicle and about as 

 long as the three preceding funicle joints; pronotum rugulose; meso- 

 scutum with large, closely placed umbilicate punctures; surface of 

 the scutellum before the distinct cross-furrow scvdptured like the 

 mesoscutum, behind the cross-furrow finely reticulately sculptured; 

 propodeum polished, without carinae and with a row of large punctures 

 along the anterior margin; ciliation of the forewing similar to that 

 figured for Syntomaspis medicaginis (ante) , but not so distinctly arranged 

 in rows, the row running from stigmal vein to apex of wing present, but 

 very poorly defined and the wedge-shaped hairless area behind the 

 marginal vein somewhat more restricted, there being three or four 

 coarse cilia basad of the stigmal vein in the apex of the wedge; hind 

 coxae about twice as long as thick with the dorso-posterior angle weakly 

 carinately margined; abdomen about as long as the thorax; first, second, 

 and third tergites emarginate medially, dorsally mostly polished; the 

 second and third at sides, and the fourth entirely, distinctly reticulate; 

 ovipositor exserted the length of the body ; color of head and thorax above 

 dull coppery green; propodeum polished metallic green; pleura, coxae 

 and all femora metallic greenish-black or bluish in some lights; first 

 three tergites above steel-blue, sides of the abdomen and dorsum 

 beyond the third tergite brassy-green; antennal pedicel and flagellum 



