12 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 92 
Originally described from two females taken at Crater Lake, Oreg. 
In the National Museum collection there are specimens from the 
following localities: Wells, Nev.; Tuttle and Oakley, Idaho; Mount 
Hood, Oreg.; Ellery Lake, Pine Lake, and Adelanto, Calif. The 
two Idaho specimens bear numbers 10 and 10b, with the name “S. 
pestifer” (D. EB. Fox) on the label. 
TRYPANEA CONJUNCTA (Adams) 
1904. Urellia conjuncta ADAMS, Kansas Univ. Sci. Bull, vol. 2, pp. 450, 451-452. 
Originally described from a female taken at Bill Williams Fork, 
Ariz. Iam describing below the male of the species. 
Male.—Differs from all the known North American species of the 
genus in the reduction of the number of hyaline marks in the margin 
of the wing, the entire costa from the middle of the marginal cell 
to just below the apex of fourth vein being entirely brownish black 
(fig. 1, »). The frons is remarkable not only in the very weak and 
short bristles, but in having five or six pairs of fine, short, and ex- 
ceptionally closely placed incurved infraorbitals. 
The fore tarsi are shorter than usual, but the basal segment is at 
least three times as long as thick and there are no exceptional hairs 
on the intermediate segments, the midfemur has no well-developed 
anteroventral bristles on the apical half, the hind tibial series of 
setulae is weak, and there are a few microscopic hairs on the basal 
section of the third vein on its underside. Length, 4 mm. 
White Mountains, Ariz., July 7, 1933 (O. Bryant collection). 
TRYPANEA BISETOSA (Ccequillett) 
1899. Urellia bisetosa CoQuILLeTT, Journ. New York Ent. Soc., vol. 7, p. 266. 
This species is readily distinguished from any other but nigricornis 
in the group with but two scutellar bristles by the broad black band 
that extends from the costal margin of the stigma obliquely backward 
to the inner cross vein (fig. 1, 0, p). 
The male is at once distinguished from that of négricornis by the 
entirely yellow antennae, but the female is not so readily distin- 
cuished as it has the antennae sometimes entirely yellow or at most 
has the third segment brownish and not black. Only one or two hairs 
are present at the extreme base of the third vein below in both sexes. 
The species was originally described from a female from Las 
Cruces, N. Mex., and a male from Marysvale, Utah. 
The female is labeled “Type,” but there are a male and a female 
from Marysvale that have no type labels on them, and apparently 
the male is the one listed by Coquillett. It is unquestionably a male 
of nigricornis, but it is in fragmentary condition and the antennae 
are missing. 
