184 Journal New York Entomological Society. [Voi. vii. 



median line yellowish ; ovipositor flattened, reddish yellow, blackish at base and tip, 

 a little longer than the three preceding segments. Wings very broad and rounded ; 

 the picture for the most part light brown, but the portion between the second vein and 

 the margin much darker brown ; the first of the hyaline incisions in the second pos- 

 terior cell extends nearly half way across the first posterior cell, the second hardly 

 reaches beyond the fourth vein ; a rather large hyaline spot a little before, and another 

 somewhat larger one just beyond the tip of the second vein. The remaining portion 

 of the wing is covered with a multitude of small hyaline spots, those in the apical half 

 much smaller than those in the basal half, many of which coalesce ; distal half of 

 second vein sinuous ; first and third veins bristly. Length, 9 4-5 ™'^- 



A single female found dead in the head of a dried specimen of Oto- 

 pappus acuminatus from Mexico. 



Eutreta diana O. S. 



Habitat : Nebraska, Washington. Those from Washington reared 

 from galls on Artemisia tridentata. 



Eutreta sparsa U'ied. 



These show considerable variation in the picture of the wings. 

 One from South Dakota, male, is a typical specimen. Those from 

 California have the wings somewhat narrower and the rather dim pel- 

 lucid drops extend to the costa anteriorly, resembling closely Mr. 

 Snow's figure in Kans. Univ. Quart. , PI. VI, Fig. lo. The single 

 specimen from Pennsylvania, a male, is much smaller and has nar- 

 rower wings. 



Habitat : Colo., S. D., Cal., Pa. 



Eutreta nora, sp. nov. (PI. Ill, Fig. 9). 



9 • Brown ; head and its appendages and legs yellow ; front very broad, more 

 reddish yellow medianly and with each of the three black bristles on either side aris- 

 ing from a small dot ; face slightly hollowed out ; mouth opening large, edge pro- 

 jecting ; proboscis short ; palpi short and broad ; third joint of antenna; short, broad, 

 slightly concave above, anterior corner rather sharp ; arista brown with a very short 

 pubescence. Thorax grayish brown with blackish piliferous spots and fuscus streaks; 

 the short, sparse pile is reddish ; scutellum somewhat yellowish with a broad median 

 fuscus band and a rather large fuscus spot at the bases of the bristles ; the four bristles 

 of the scutellum, as well as those of the thorax, black ; metanotum black with grayish 

 pollen latterly. Abdomen dark velvety brown, with a narrow median longitudinal 

 grayish line ; pile white ; ovipositor, except a reddish lateral spot, shining black, 

 flattened, about as long as the four preceding segments taken together. Wings broad, 

 round, black, covered with numerous white round dots which vary considerably in 

 size, the largest ones being found in the marginal cell and second and third posterior 

 cells ; interspersed among the whitish hyaline dots are many small yellowish spots ; 

 posterior cross-vein very much curved ; the bristles on the third vein are short and 



