58 Bulletin of the Brooklyn Entomological Society. Vol. XIV 
Length— 2.03 mm., 2 1.97 mm. 
6 J, 62 from Hamden, Conn., off Myotis subulatus Say., col- 
lected January 9, 1915, by the author. 
The bat-infesting fleas of the Nearctic region have been badly 
neglected. Up to the present there have been three species 
named. The first, insignis Roths., off Myotis lucifugus* was 
described from Canada (Waterloo, Ontario). The second, cros- 
byi Baker, was very insufficiently characterized and is question- 
ably distinct from insignis. The third species, texana Fox, is off 
Nyctinomus mexicanus from Texas (Pecos). 
The present species is nearest to msignis, from which it differs 
in the shape of the exopodite and in the number of spines in the 
pronotal ctenidium. Also there are no short teeth on the meso- 
notum as in msignis. The ratio as given above for the exopodite 
appears to be 50-40 for insignis. 
Neopsylla similis sp. nov. 
Head.—tThe frons bears two rows of bristles, the upper of five 
and the lower of four, which are distinctly stouter. The occiput 
bears three rows, of four, five and three bristles respectively. 
The upper half of the posterior margin of the antennal groove 
bears three minute bristles. The rostrum reaches about two- 
thirds the length of the fore coxa. Eye rudimentary. 
Thorax.—The pronotal ctenidium is of 12 rather broad spines ; 
there is also one row of bristles on the pronotum, the most ven- 
tral being the longest. 
Abdomen.—The tergites bear two rows each of bristles, the 
anterior row being the heavier. Sternites IJI—VII bear bristles 
as follows: 4-8; 4-8; 4-4-9; 8-9; 6-4. 
Legs——The hind coxa bears internally a nearly continuous 
row of seven short spines, the distal three becoming successively 
thinner. There are also eight hairs grouped about this comb. 
On the ventral margin of the mid femur at the proximal end is 
one bristle and at the distal end there are two, these last being 
on the outside face. On the ventral margin of the hind femur 
*In the original description, the host is cited as Myodes lucifugus. As 
the genus Myodes (Muride: Microtine) would not normally carry fleas 
of this group, and as the specific name strengthens the case for Myotis, I 
have made the change. 
