54 
Psyche 
[April 
gg. Proboscis dark; scutellum yellowish ; wing veins 
not unusually pronounced ; intervals between 
the thoracic stripes yellow, 
h. Fore basitarsus about 2/ 3 as long as the tibia; 
Sc ends proximad of the base of Rs ; knob of 
the halteres dark; basal segment of the clas- 
per of the male with a black, ventrad pro- 
jecting, and much curved mesal process (fig. 
4). N. Y. . . cornuta n. sp. 
hh. F ore basitarsus about 3/ 4 as long as the tibia. 
i. Apical segment of the clasper of the male fully 
as broad beyond the middle as at the base 
(fig. 3) ; Sc ends about opposite the base of 
Rs; distance between the crossveins meas- 
ured on the media usually not exceeding 1/2 
the length of the m-cu crossvein. N.Y., N. 
C., Cal. . . modesta Joh. 
ii. Apical segment of the clasper tapering (fig. 7) ; 
Sc ends distinctly proximad of the base of 
Rs; distance between the crossveins about 
equal to the length of the m-cu crossvein. 
N. Y. . . . similis n. sp. 
ff. Dorsum of the thorax as well as the upper part of 
the pleura, black; proboscis, halteres and scutel- 
lum dark; Sc ends opposite the base of the radial 
sector. N. Y. . . . fusca Lw. 
Dixa californica sp. nov. 
Male. Head black, proboscis, palpi, and flagellum of 
antennae brown, basal antennal segments light brownish. Dorsum 
of the thorax and upper part of the pleura, yellow; dorsal 
stripes rich dark brown, nearly confluent, laterals anteriorly, 
median one posteriorly abbreviated; scutellum, metanotum, 
and larger part of pleura brown. Abodmen black; the mesal 
process of the basal clasper segment forked; the apical segment 
in ventro-lateral aspect more or less triangular, apically with 
acute angle, mesally with a number of stout black setae (fig. 1). 
