52 
Psyche 
[June 
Others mention finding them in caves. As will be pointed 
out below, these do not refer to the same species as our 
Leptinus. 
When the specimens were checked by Werner, the 
other author, it was discovered that there were significant 
differences between the series at hand and the specimens 
used in the figures of the European species by Jeannel 
and by Sharp and Muir. This led to closer examina- 
tion. There is little if any difference in general appear- 
ance. The only discernible differences were the wider 
eighth antennal segment, which was narrower than the ad- 
jacent segments in testaceus, and the slightly wider clyp- 
eus. When the male genitalia were examined, it was found 
that great disparity exists. Our species lias the para- 
meres wider and with eight apical setae in addition to the 
two long subapical setae. Both Jeannel ’s and Sharp and 
Muir’s figures of the male genitalia show only two long 
subapical setae and some differences in general shape 
and proportion. Jeannel figures the tips of the mandibles 
as simple, while our species has the tips bifid. Two spe- 
cimens dissected by Mr. Barber and kindly loaned for 
comparison, one from Bareges, Pyrenees, France, and the 
other from Torrington, England, have genitalic char- 
acters as in the figures of Sharp and Muir and of Jeannel. 
The mandibles of these specimens were not examined as 
this would entail further dissection of the specimens and 
placing the mandibles on a slide. 
Since major differences in the genitalia usually are 
taxonomically significant, our Leptinus is surely differ- 
ent from Leptinus testaceus (Mull.). Leptinus a mer- 
ic an us LeConte was described from Iowa. Unfortun- 
Explanation of Plate 8 
Leptinus americanus Lee. 
Camera lucida drawings of New York specimens mentioned in the text. 
Figs. 3-5 from cleared specimens on slides, 1 & 2 from dissection of an 
alcoholic specimen. All deposited in M.C.Z. 
Fig. 1. Male genitalia, left lateral view, 238 x. 
Fig. 2. Male genitalia, dorsal view, 238 x. 
Fig. 3. Right antenna of female, dorsal view, 49 x. 
Fig. 4. Dorsal view of head of female, 49 x. 
Fig. 5. Tip of left mandible, ventral view, 382 x. 
