MENES.—MEN(CECEUS. 443 
Hab. Muxico, Merida in Yucatan (Hoge), Temax in N. Yucatan (Gawmer). 
Apparently a common insect in Yucatan, whence we have received about 100 
examples. 
2. Menes rotundatus. 
Piceous-brown, opaque, very thickly pubescent. Head closely and rugulosely punctured ; eyes smaller than in 
M. meridanus, and still more widely separated ; prothorax densely and rugulosely punctured ; elytra rather 
deeply striate, the strie with oblong, moderately coarse, and somewhat closely placed impressions, the 
interstices slightly convex and very closely and subasperately punctured; beneath coarsely and closely 
punctured, the metasternum with exceedingly coarse impressions ; legs and antenn ferruginous or fusco- 
ferruginous. 
Length 43-54 millim.; breadth 24-3 millim. 
Hab. Mexico (Flohr, coll. F. Bates), Jalapa (Hoge). 
Numerous examples. Smaller and shorter than M. meridanus; the upper surface 
opaque, rugulosely punctured, and more thickly pubescent; the elytral striz less 
coarsely punctured ; the eyes smaller and more widely separated, &c. In unabraded 
specimens the pubescence is so close as to partly hide the sculpture. 
MENCECEUS. 
Last joint of the maxillary palpi broadly triangular, its apical side rather longer than the outer side; last 
joint of the labial palpi broad and subsecuriform ; mandibles subtruncate ; head very short and broad, 
deeply inserted, vertical in repose ; eyes large and transverse, convex, narrowly separated in both sexes ; 
antenne stout, joints 3 and 4 about equal in length (very broadly and irregularly dilated in the male of 
M. crassicornis) ; prothorax convex, very large and broad, nearly twice as broad as long, the sides rounded 
and greatly expanded and rapidly converging from the base, the hind angles very prominent and rather 
sharp, projecting laterally a little beyond the base of the elytra, and extending backwards, the base 
bisinuate ; scutellum rather large, transversely scutiform; elytra moderately long, narrower than the 
prothorax at the base, very slightly rounded at the sides and widest a little before the middle, finely 
punciate-striate ; prosternum subhorizontal and very slightly and convexly produced (M. crassicornis), or 
convex and abruptly declivous behind (J. equalis, M. tewanus) ; epipleure broad at the base; flanks of 
the prothorax deeply concave behind; legs rather short, pubescent ; the penultimate joint of all the tarsi 
distinctly lobed beneath in both sexes, the first joint of the posterior pair rather longer than the following 
joints united; tibie similar in both sexes; the four hinder femora somewhat flattened ; claws pectinate ; 
body oblong ovate, winged, pubescent. 
This genus includes three species—two from Mexico or Guatemala and one from 
Texas. Meneceus is no doubt closely allied to Hymenorus, but it is easily separated 
from it by the very short and greatly dilated thorax, the hind angles of which extend 
laterally beyond and are incumbent upon the shoulders of the elytra, and the short 
broad‘head. JW. crassicornis has the third and fourth joints of the antenne distorted 
and dilated in the male, and the prosternum slightly produced. MM. equalis approaches 
certain Hymenori (e.g. H. emmenastoides), but has a differently shaped head. 
The lateral lobes of the last ventral segment in the male are spoon-shaped or spatu- 
late in all three species. 
3 LL 2 
