56 
Psyche 
[April 
hair line, the laterals abbreviated anteriorly; metanotum and 
sternopleura pale brown. Abdomen blackish; the basal segment 
of the clasper yellow, moderately swollen, with a black, elongate, 
ventrad projecting and much curved mesal horn-like process; 
terminal segment of clasper viewed from the ventral side elon- 
gate as shown in fig. 4 with rows of ventro-mesal black spines; 
when viewed from the side, quadrangular, shaped somewhat 
like that of D. calif ornica (fig. 1) but with the mesal angle much 
truncated and more spinous. Legs brownish yellow, extreme 
tips of tibiae and of tarsi darker, the hind tibiae distinctly swollen 
at tip; fore basitarsus about 2/3 as long as the corresponding 
tibia. Wings hyaline, very faintly cinereous, veins yellowish, 
crossveins not clouded; Sc ends slightly before base of Rs; 
petiole of R2-1-3 (measured on a straight line from its base to 
base of fork) about 0.4 as long as R3; petiole of the media 
measured from the crossvein, about 1.12 as long as Ml +2. 
Halteres dark with yellow peduncle. Length 2.5 mm. Holo- 
type in my collbction. McLean, N. Y. October. 
Female. In coloring like the male. Allotype in my collec- 
tion. Ithaca, N. Y. August. 
Paratypes from Ithaca, N. Y., October, and from Orono, Me., 
June. In the Cornell University Collection and in the Museum 
of Comparative Zoology, Cambridge, Mass. 
The coloring is rather constant, except in teneral speci- 
mens. In the paratypes the venation is rather variable. The 
ratio measurement, as defined above for the radius, ranges from 
.36 to .50 in male specimens while the ratio measurements of the 
media ranges between 1.12 and 2.1. The distance between the 
bases of the crossveins measured along the media, is in most 
cases nearly equal to the length of the m-cu crossvein. The fore 
tibia-tarsus ratio ranges between .61 and .71, with an average of 
.65. 
Dixa modesta Joh. 
Too hastily, in the Entomological News (14:302), I de- 
clared this species to be the same as D. clavula Will. A careful 
examination of a co-type specimen of Williston’s species shows 
