112 FAMILY EVANIID.T:. 



veins and stigma dark. Legs entirely dark brown, except a wliite ring near the 

 base of tbe posterior tarsi, and a subwliite ring at the base of the posterior tibise, 

 broad in front and obsolete behind ; posterior coxie very finely transverse rugu- 

 lose. Abdomen silky, brown at base, grading to black at apex, varied with two 

 ferruginous spots on each side near the middle. Borer red, sheaths black, pale 

 at apex. 



% . — Similar, except that the apex of the mandibles is a little longer, the cly- 

 peus a little more deeply emarginate. and the second joint of the flagellum short. 



Five specimens with no variation, except that the ferruginous 

 spots on the abdomen sometimes extend toward the base. The 

 stature is very frail. 



Hab. — Montana, Nevada, Oregon (Mt. Hood). 



Type. — In the American Entomological Society's collection. 



Foeiiiis pattersoiiae Melander and Brues. 

 1902. Gasferiiption pattersonas Melander and Brues, Biol. Bull., iii, p. 35. 

 1904. Gasternption pyrrhosternum Kiefifer, Invert, pacific, i, p. 41. 



Black, legs red, abdomen ferrugino-niaculate. Thorax sub-coarsely reticulate, 

 posterior coxie more finely reticulate. Length 12.5 mm. 



% . — Head black; face slightly silvery pubescent; mandibles rufous, tipped 

 darker, shining and impunctate toward the acute apex, slightly punctured at the 

 base; clypeus sinuate, broadly emarginate, without tooth in centre; face very 

 sparingly covered with punctures much smaller than the ocelli ; punctatioiis on 

 the occiput larger and running into close fine transverse wrinkles; antenna' 

 pubescent, with the second segment of the flagellum short; occiput and head 

 beneath covered with fine yellowish pile ; head behind the eyes very brief, sub- 

 truncate, margin not reflexed. Neck short, it and the entire thorax are covered 

 with coarse and more or less regular reticulations, not confluent on the meso- 

 thorax, and about one-half the size of the ocelli. Thorax entirely black, its 

 sides and tbe neck silvery sericeous, prothorax with an acute tooth on the lateral 

 anterior angles. Wings subhyaline, without violaceous reflection and but slight 

 irridescence ; nervures and stigma dark. Four anterior legs including coxse 

 rufotestaceous; posterior deep rufous, tending to castaneous, the base of the 

 tibiai with a white ring; posterior coxfe rufous, much more finely reticulated 

 than the thorax. Abdomen sub-silky, black, with ferruginous lateral spots on 

 the first two or three segments. 



One specimen has stood for many years in the collection of the 

 American Entomological Society bearing a MS label in Mr. Cres- 

 sou's handwriting. I have receivei. il additional specimen {pyrrho- 

 sternum Kieffer) from C. F. Baker. 



FceniiN floridaiius n. sp. 



5 , "J) . — Black, neck, prothorax, coxa; and entire legs, jiropodiuim and spots on 

 the abdomen red. Thorax and hind coxic coarsely reticulate. 



Length 14 mm. Borer 12.5 mm. 



9. — Head black; impubescent, except clypeus which is somewhat pubescent 

 and roughly sculptured, rest of face closely covered with minute puncture* con- 



