HYLOCURUS.—CRYPHALUS, 225 
rounded, the hind angles rectangular; surface very feebly elevated before the middle, subdepressed behind, 
its anterior half rather finely asperate, its basal half moderately shining, closely reticulate, with scattered 
subasperate punctures, absent over the middle line. Scutellum rather large, triangular, nearly smooth. 
Elytra fully one-half longer than the prothorax, the sides subparallel, with slight posterior ampliation, 
the hind margins obliquely rounded, the terminal mucro short and blunt; surface with punctured strie, 
the punctures rather shallow, deeper posteriorly, the striae not impressed before the apical half ; interstices 
narrow, nearly flat, subrugose, finely seriato-tuberculate from behind the middle, the tubercles bearing 
short squamous setze and uniform in size on the different interstices ; declivity obliquely convex, with 
the strize continued on to it, the 2nd and 4th interstices abbreviated before the apex. 
Hab. t Mexico or BRAZIL. 
I have one specimen of doubtful origin, either from Mexican or Brazilian tobacco. 
It is allied in sculpture to H. errans, but is a much smaller insect, with the elytral 
punctures not so large, dilated and shallow, the striz not impressed for their basal half, 
the interstices more shining and less closely rugose. 
Hylocurus spinifex, sp. n. (Tab. VII. fig. 23, apex of elytra.) 
Mas. Breviter cylindricus, subnitidus, niger, antennis pedibusque fusco-testaceis ; prothorace latitudine vix 
longiore, basi punctata; elytris cylindricis, ad apicem circulatim retusis, punctato-striatis, interstitiis 2° 
et sequentibus ad apicem carinatis et in spinas acutas productis, spinis 2*, 6*, 8* in utroque latere longis, 
validis ; fundo declivitatis infra prope suturam bispinato. 
Long. 2—2°2 millim, 
Male. Shortly cylindric, moderately shining, black, the antenne and legs testaceous-brown. Prothorax about 
as broad as long, slightly constricted in front, the hind angles obtusely rounded, the sides feebly rounded 
behind, more strongly in front, the apex broadly rounded, its margin not tuberculate; surface with a 
median obtuse subtransverse rufescent elevation, granulate anteriorly, the granules small, with scattered 
larger ones, the basal third punctate, the punctures sparser towards the middle which is shining. 
Scutellum not large, rounded, punctate. Elytra less than one-half longer than the prothorax, not dilated 
posteriorly, moderately strongly punctate-striate, the punctures but slightly dilated and not confluent 
behind ; interstices subconvex, shining, uniseriately punctured, with a few squamous sete at their 
extremities, the first unarmed behind, the others furnished with acute backwardly-directed triangular spines 
round the margin of the declivity and radially flattened with respect to it, those of the 3rd, 7th, and 9th 
interstices very long and incurved, the remainder short ; declivity subconvex, shining, strongly punctured, 
with a single spine on each side near the apex of the suture, the lower border bluntly toothed on each 
side of the short terminal mucro. 
Hab. * Mexico. 
Three specimens from Mexican tobacco-refuse are in my collection. The species is 
easily recognized by the elytral armature, which is quite different from that of any 
other species. 
Subgroup IV. CRYPHALI. 
This subgroup is represented in Central America by two cosmopolitan genera only. 
CRYPHALUS. 
Cryphalus, Erichson, Wiegm. Arch. 1836, i. p. 64 ; Eichhoff, Rat. Tom. p. 121. 
Ernoporus, Thomson, Skand. Col. i. p. 147; vi. p. 360 (pro parte). 
Though the genus Cryphalus is represented in the United States, no examples of it 
BIOL.-CENTR.-AMEB., Coleopt., Vol. IV. Pt. 6, June 1904. 2GG 
