178 ENTOMOLOGICAL NEWS. [April, ’08 
knobs brownish; femora and base of tibie brownish-yellow, tibize grow- 
ing darker toward the tip; tarsi brown, terminal segments almost 
black; abdomen brownish-yellow, darker posteriorly, posterior and 
lateral margins of the segments but slightly darker; the eighth stern- 
ite of the male long, broad, conspicuous, the posterior margin with a 
rather deep rounded incision, the edges of which bear a conspicuous 
fringe of long yellow hair; posterior margin of the ninth tergite with 
a small V-shaped incision, the edges of which are black; ovipositor 
reddish-yellow, upper valves straight, tips rounded, lower valves not 
reaching the tips of the upper valves; wings hyaline; stigma brown, 
more or less distinct; second posterior cell sessile or with a very 
short petiole (in two of my specimens this cell is broadly sessile in 
one wing, and with a very short petiole in the other wing). Length, 
male, II mm., wing, 11 mm.; female, 15 mm., wing, 15 mm. 
Hab.—Central and Southern California, Montana, Eastern 
_and Western Washington, Nevada, Arizona. (type from Stan- 
ford University, Cal.) Many males and females. 
This species is very like P. ferruginea of the eastern United 
States and doubtless is the one that has been recorded from 
California as ferruginea. The long, broad eighth sternite of 
the male with its deeply cleft, long-haired posterior margin 
at once separates it from ferruginea in which this sternite is 
only slightly curved or cleft along the posterior margin and is 
provided with much shorter sparser hairs. The specimens 
from Arizona and one of the Washington specimens have the 
anterior lateral margins of the median thoracic stripe bor- 
dered with brown and in some the anterior ends of the lateral 
stripes are also marked with brown. The brown spot on the 
occiput is sometimes quite indistinct, in other specimens it is 
well marked, sometimes drawn out into a narrow line anter- 
iorly. In a few of the specimens the tip of the knob of the 
halteres is yellowish. The palpi are sometimes wholly yellow 
and the 4th, 5th, 6th segments of the antennae of the female 
are ustially more or less yellow. 
Pachyrhina breviorcornis n. sp. 
Yellow; head yellow, with a brownish tinge and a small triangular 
brown spot above, lighter behind the eyes; rostrum yellow, brown on 
the sides; palpi yellow; antennae with thirteen segments, first and sec- 
ond wholly yellow, third elongate, basal half yellow, distal half brown, 
