10 BULLETIN BROOKLYN ENTOM. SOC. VOL. VII. May 1884. ] 
Nothopleurus. In the 3% the metasternum has two large densely villous 
spaces; in the © the same portion is clothed with long soft pubescence. 
Color, uniform brown varying with individuals, From dasystomus its 
near ally, it differs further by the lack of the bright thoracic facets, by 
having the posterior angles obliquely and broadly emarginate, so that a 
prominent angle is formed before the base, and another at the base itself, 
and finally by the more slender mandibles having a strong tooth near tip 
and being only sparsely pilose internally. Length 1.25 to 1.75 inches, 
30—45 mm. Had. Southern States. 3 
M. dasystomus Say, Journ. Ac. Phil. III, 326; Lec. Journ. Ac. Phil. 1852, 112; 
melanopus t Hald..-{ ‘Trans. Am. Phil. Soc. X, 31; ?degeneratus Thoms. Revis. 95; 
- costulatus Lec. Journ. Ac. Phil., ser. 2, II, 1852, p. 111; spinibarbe { Hald ©. Trans. 
Am, Phil. Soc. X, p. 31. 
The color is much paler than in the preceeding; besides the differ— 
ences noted under mandibularis, this species has the under surface of 
head much less deeply excavated, and the gular margins are much less 
elevated. The genz also are emarginate, while in mandibudliris they are 
broadly rounded. Length 1.25 to 2 inches, 30-50 mm. /aé. South. St. 
M. melanopus Linn. Syst. Nat. ed. XII, p. 623; Oliv. Ent. IV, 66, p. 18, pl. 12, 
fig. 46; crenulatus Drury, Ill. Il, Ind. I, p. 86, pl. 38, fig. 2; cilipes Say, Journ. Ac. 
Phil. III, 1823, p. 327; Lec. Journ. Ac. Phil. ser. 2. II, p. 111; biimpressum Hald, 
Trans. Am. Phil. Soc. X, 1847, p. 39; simplicicolle Hald, 1. c. Dupont, Dej. Cat., 
3d ed., p. 342. 
In this species the tibize are densely ciliated on the inferior edge, 
and it was this character that induced Say to name the species clipes. 
Otherwise sufficiently distinguished in the synopsis. The color is very 
dark brown—almost black, Length 1.75 to 2.25 inches, 45—-55 mm. 
igo. Hlomda wank hex. 
M. serrulatus liec., Proc. Ac. Phil. 1854, p. 82; Arcan. Nat. 1859, p. 127, 
pl. 13, fig. 5. ; 
Readily distinguished from all the others by the characters given in 
the synopsis. Besides being crenulate rather than dentate, the margin of 
the thorax is also rather less reflexed than in the preceeding species. 
Length 1.75 inch. 45 mm. Aad. Texas. Color brown. 
M. angularis Lec. Crotch Check List p. 83 is not described and 
must be dropped. It is Szenodontes damicornis Fab. 
DEROBRACHUS, ‘“erv. 
Two species from the Southern States and California are contained 
in this genus. The form is more slender than in the preceeding. The 
mandibles are acute, horizontal, and alike in both sexes, The antennz 
are II jointed, nearly filiform in the female, thicker at the base in the 
