64 Journal New York Entomologigal Society. [Voi. vl 
antenna pale flavate; pubescence short, fine and moderately distinct. Head 
rather short, inserted nearly to the eyes, which are well developed and very con¬ 
vex ; surface moderately convex, dull and subscabrous; antenna moderate m 
length, the rami unusually short and gradually thickened from their bases, the 
ramus of the fourth joint three times as long as the joint. Prothorax distinctly 
shorter than wide, the outline broadly parabolic irom the base continuously 
around the apex, the sides becoming almost parallel near the base, which is- 
broadly arcuate, finely margined toward the middle ; surface densely granulato- 
scabrous, larger individual granules but slightly evident toward tip. Scutellum 
longer than wide, dull, obtuse at tip as usual. Elytra three-fourths longer than 
wide, twice as long at the prothorax and scarcely wider, the punctures equally 
visible throughout, rather large but sparse and with but the vaguest suggestion 
of lineal arrangement. Length 2.4 mm.; width 0.8 mm. California (Los 
Angeles Co.). flavipennis, sp. nov. 
The female in this genus generally has a short acute transverse ridge 
near the apex of the last ventral segment, but in ramicornis the fifth seg¬ 
ment is simple in that sex, having merely a very small and shallow im¬ 
pression at the apex. The male usually has the fifth ventral simple or 
slightly more convex at the apex, where it is broadly and evenly rounded. 
Acuminatus is represented before me by seven females varying greatly 
in size, and the male is apparently rare; on the other hand ramicornis 
is represented by nine specimens, only two of which are females. Tho- 
racicus Rand., is not known to me at present and is therefore omitted 
from the table. 
Euceratocerus Lee. 
The fifth ventral segment is generally impressed in the female of Eu¬ 
ceratocerus and is rather shorter than in the male, where it is simple. 
The species are all elongate and subcylindrical, though rather less con¬ 
vex than in Ptilinus, the head minutely and densely granulose, the pro¬ 
thorax less minutely and very clearly and evenly granulate throughout 
the disk, but rather more densely at the summit of the more convex 
median parts near the base. The elytra have very fine, scarcely im¬ 
pressed striae, which extend nearly to the apex in ho mi, and that species 
is well distinguished from any of the California representatives by the 
two basal impressions of the pronotum. The species are very much 
more closely allied among themselves than those of Ptilinus , and the 
male appears to be very rare in comparison with the female. The four 
species in my cabinet may be identified as follows from the female: 
Basal joint of the hind tarsi very much shorter than the entire remainder, the second 
joint relatively more elongate; pronotum impressed at each side near the basal 
margin; elytra more elongate ; eyes separated by rather less than three .time* 
their own width. Texas. horni Lee. 
