THE CANADIAN ENTOMOLOGIST 265 



DESCRIPTIONS OP^ AND OBSERVATIONS ON SOME 

 CHALCIDOID HYMENOPTERA— II. 



BY A. A. GIRAULT, GLENNDALE, MD. 

 (Continued from page 246.) 



The following is a table to the North American Species of 

 Eiiplectrus Westwood, based on a study of the types, except in the 

 case of Provancher's species. The latter are genuine species of 

 the genus (perhaps excepting mellipes). 



Females. — -Legs all yellow. Propodeum with a median carina. 

 The species do not differ much in sculpture. 

 Abdomen yellow. 



Abdomen black above at distal third and along the margins. 

 Scutum with a more or less distinct median 



carina " f.catocalce How^ard . 



Abdomen entirely yellow except the lateral and proximal 

 margins. Scutum with a median carina. Propodeum 

 glabrous. 



Male mouth broadly white comstockii Howard. 



Male face entirely black plat y pence Howard . 



The same but the abdomen with a black area at meson at 

 base of distal third. MoUth in both sexes white. Propo- 

 deum glabrous. Median carina on scutum more or less 



distinct leucotroph is Howard . 



( = frontalis Howard). 

 The same but mouth black; propodeum coarsely 



scaly mar ginatus Ashmead. 



Abdomen black. Pronotum not rugose. 



Black mellipes Provancher. 



Metallic liicens Provancher. 



Abdomen black with a large basal area above. 



Submetallic viridcsneus Provancher . 



Eiiplectrus insuetus Gahan (types examined) is not an 

 euplectrine. The caudal tibial spurs are not very large; the 

 scutellum bears a true lateral groove (mesad of the bristles). 



Diaulinus intermedius new species. 



Female. — Like begini Crawford but the annulus on the caudal 

 tibicC is distinctly broader than the yellow proximad of it (over 



August, 1910 



