6 PROC. ENT. SOC. WASH., VOL. 21, XO. I, JAN., 1919 



marginal, and a dusky band, which is broader in middle, below postmarginal; 

 submarginal vein yellowish, remaining veins pale brown; body sparsely 

 clothed with white hair. 



Male. Length 2.5 mm. Besides the usual sexual and secondary sexual 

 characters, the male differs from the female only in having the sculpture 

 more decicate. Head and thorax metallic green with a bronzy tint; abdomen 

 metallic blue; legs, except the yellowish tarsi, metallic green; scape green, 

 remaining joints black; wings hyaline with an elongate dusky spot which 

 extends nearly across wing below postmarginal. 



Type locality. Palo Alto, California. Described from one 

 female (type) and one male (allotype) reared from twigs of 

 Ouercus agri folia infested by Agrilus angelicus and recorded under 

 Bureau of Entomology No. Hopk. U. S. 12707a 8c . Material 

 collected and reared by H. E. Burke. Also one paratype female 

 reared from twigs of Ouercus agrifolia, infested by Agrilus 

 angelicus, collected by A. G. Smith at Pasadena, California. 



Type. Cat. No. 21994 U. S. Nat. Mus. 



Dinotus agrili, new species. 



This new species runs satisfactorily to the genus Dinotus in 

 both Ashmead's and Kurdjumov's keys and agrees well with a 

 European specimen of this genus received from G. Mayr. In the 

 American species the stigmatical vein is somewhat less widened 

 and the abdomen is more ovate. 



Female. Length 2.5 mm. Head reticulato-punctate, more finely so on 

 the vertex; interocellar line distinctly longer than the ocellocular line but 

 not half as long as the postocellar line; antenna with three ring joints, the 

 first funicle joint distinctly longer than any of the following which are of 

 subequal length; club not prominent, broadly lanceolate, three jointed, the 

 first two joints subequal the third shorter; pronotum narrow, sharply trun- 

 cate anteriorly; mesonotum reticulato-punctate, the scutellum somewhat 

 more finely so; propodeum shining, median and lateral carina^ prominent; 

 mesepisternum and sides of propodeum reticulato-punctate; abdomen ovate, 

 acute apically, shining; stigmatical vein greatly thickened apically the thick- 

 ened part nearly trapezoidal in outline, the outer side of the vein but slightly 

 thickened. Bronzy green with the Ifronze more prominent on scutellum and 

 middle of the abdomen; scape, tibiae (except faint basal infuscation on the 

 hind pair) the tarsi ferruginous; apices of hind tibiae whitish; wings hyaline, 

 venation pale brown. 



Type locality. Pasadena, California. Described from four 

 females (one type) reared by H. E. Burke from twigs of Ouercus 

 agrifolia infested by Agrilus angelicus collected by A. G. Smith. 



