A. A. GIRAULT. 63 



March 12, 1910. 

 Dear Mr. Girault : 



Replying to your questions put forth in your memorandum of March 

 10, I will say that No. 1892a was reared from Eragrostis poaoides taken 

 from near the Big-4 passenger station in Urbana. This, clearly, was col- 

 lected July 30, 1902, on account of its being infested by Isosoma and also 

 by Dipterous larvae, developing to Oscinis sorer. The rearing of these 

 minute parasites was entirely accidental. They simply appeared in 

 the breeding jar, there being two colorial forms, one reddish and the 

 other yellow. I think that both c? and 9 of the red form was reared 

 but only 9 's of the yellow form. Doctor Ashmead determined both 

 forms as the same species. 



I also reared other specimens but I do not recall of which color form, 

 material collected at Princeton, Ind. So far as I know, cf's only of 

 the red form have been observed. The two forms emerged at the 

 same time from the same lot of grass secured at Urbana and num- 

 bered 1892 and 1892a. 



Yours truly, 



F. M. Webster. 



In Charge of Cereal and Forage 



Insect Investigations. 



3. Westwoodella siibfasciatipeiiiiis species nova. 



Normal position. 



FeDiale. — Length, 0,80 mm. Tarsi 3-jointed. Fore wings with a 

 fumated stigmal band in addition to the substigmal fuscous patch ; 

 colors inconspicuous, sordid and yellowish. 



General color sordid marked with sordid yellowish, the whole of the 

 thoracic dorsum sordid yellowish green, most of the abdomen dark, 

 the scutellum pallid yellowish as are also the antennae, the legs dusky, 

 the tips of the leg joints pallid yellow as are also the two proximal tar- 

 sal joints; eyes and ocelli dark, the portion of the head surrounding 

 the eyes with some yellowish. Fore wings nearly hyaline, with a dis- 

 tinct, short substigmal subquadrate, fuscous dot or dash nearly as in 

 americana projecting nearly caudad (but with a distinct inclination 

 proximad) from the knob of the stigmal vein and in addition, in the 

 same region, a distinct though not pronounced, subtriangular fumated 

 area forming a smoky band across the wing at the stigmal vein very 

 much as in subfasciata, though not as distinct as figured for that 

 species, the area originating at and embracing the stigmal knob and 

 the substigmal dash and proceeding caudad across the disk of the wing 

 to the caudal margin where it is broadest. Proximad, caudad of the 

 submarginal vein there is also some duskiness, more visible at the dis- 

 tal end of the submarginal vein. Blade of the posterior wing dusky, 

 indistinctly maculate. Venation concolorous with the antennas. Dis- 

 tal tarsal joint dusky. 



trans, am. ent. soc, xxxvii. 



