116 BULLETIN BROOKLYN ENTOM. SOC. VOL. VEL. Decembentnea ay 
OEME, Neun. 
Goneune four species separated as follows: 
Thorax constricted at base, with a distinct tubular or cylindrical prolongation; elytra 
more or less distinctly costate. 
Thorax densely punctured, a moderately impressed median line............ rigida, 
Mhorax puncturedsia smoothemedianigvittame seni see ee eee costata, 
Thorax more suddenly constricted; a transverse impression and plica on disk...... 
strangulata. 
Thorax oval, more constricted at base than tip; on tubular prolongation at base; 
elytral costee wanting, or the first only faintly indicated .. ......pracilis, 
0. rigida, Say, Proc. Ac. Phil. V, p. 274; linearis Harr. Hartf. Trans. 1837, 
p. 85, pl, £8; Tec. J.A.P. ser.'2, 11, p.20; indecora Newn. Ent. pics eee: 
1852, p. 177; mucita Hald, Proc. Ac.@Phil. IV. 1847, p. 374. 
Color uniform ferruginous, antennee very robust. Length .60 inch. 
=15mm. Hab. New York, Florida. 
0. costata, Lec. S,M.C. No. 264, 1873, p. 174. 
Color dark, shghtlv pubescent, the elytra are wider than the thorax, 
with three narrow lines or costze, the spaces between sparsely reticulate. 
‘The male has the antennz as long asthe body, joints 3—6 armed with 
acute spines. Length .go inch, =22mm. Hab, California. 
0. strangulata, Horn, Trans. Am. Ent. Soc. 8, p. 133, pl. II, f. 7. 
Piceous, subopaque, pubescence very short. Elytra densely and 
finely punctured, with three elevated lines on each. The thorax is very 
suddenly constricted, short, bears a transverse impression and plica 
and readily distinguishes the species. Length .76 inch. =.19 mm., 
Hab. Utah. 
0. eracilis, Lec. Bull. Buff. Soc. N.S. 4, p. 27. 
Easily distinguished from all the other species by the form of the 
thorax... Golor is deep dark brown. Length .48 inch. = 12 mm. 
Hab. New York. 
EUCROSSUS, l«. 
Contains one species: 
EB. villicornis, Lec. S.M.C. No. 264, 1873, XI, p. 175. 
A large pale brown insect resembling Oeme but less serdle Thorax 
dull sericeous, with a broad median line and on each side a large cica- 
trix, commencing near the base, extending in front ofthe middle, then 
suddenly bent inwards for a short distance, and then turning forward 
suddenly abbreviated. Elytra sparsely punctured and thinly pubescent, 
armed at suture with small spine. Antennz densely fringed beneath 
with long soft hair, becoming thinner and vanishing on 8th joint. Length 
.72—.96 inch. = 18—24 mm. Hab. Arizona, California. 
