54 Bulletin of the Brooklyn Entomological Society. Vol. XIV 
body, the apex nearly reaching the middle of the body. At the 
opposite end of the body is a knob-shaped excrescence equal in 
height to the diameter of the appendix and about twice as broad 
across the base of attachment. 
Length.—4 mm. 
Described from one female, collected at Woodridge, D. C., De- 
cember 3, 1917, off Peromyscus leucopus noveboracensis Fischer, 
by Alexander Wetmore, in whose honor it is named. 
Stenoponia, as characterized, heretofore contained three spe- 
cies, the type, tripectinata Tirab. from the Mediterranean region, 
celestis Roths. from China and gigas Kirby from North Amer- 
ica. The species described above is distinguished immediately 
from gigas Kirby by the difference in the genal ctenidium, being 
fourteen spines in case of gigas. The arrangement of bristles on 
the metepimeron is entirely different, most notably so in the pos- 
terior row; in gigas there are ten bristles, while in the present 
species there are fifteen. There are many other minor differ- 
ences. 
Doratopsylla blaring Fox, U. S. Pub. Health Ser., Hygienic 
abe Bullyo7. p: 11, ple DNaiies si 25 von: 
As this species was described from the ¢' only, the following 
description of the @ is offered. 
Head.—The frons bears two rows of bristles, each of five. 
The first, third and fifth bristles of the lower row are very much 
heavier than the others. The occiput has three rows, the upper 
of four, the middle of six and the lower of six bristles. There 
are two small bristles on the posterior margin of the antennal 
groove. The eye is rudimentary. The last spine of the genal 
ctenidium is at the anterior edge of the antennal groove. The 
rostrum extends four-fifths the length of the fore coxe. 
Thorax.—The pronotum bears a ctenidium of sixteen spines, 
anterior to which is a row of nine bristles. The meso- and meta- 
nota bear two rows each of bristles. There are eleven bristles 
on the meso- and meta-pleural sclerites as follows: mesepister- 
num one, mesepimeron five, metepisternum one, metepimeron 
four. 
Abdomen.—Tergites I-IV each bear at the upper part a pair 
of short, thick sharp teeth, one on either side of the dorsal median 
