STHENOBGA.—ISICERDES. 113 
American genera, this genus may be known by the narrower and more transverse eyes, the 
broad and very short thorax, the less parallel elytra, the structure of the prosternum, 
and the feebly channelled tibie. | 
1. Sthenobeea apicalis. (Tab. VI. fig. 1, 2.) 
Oblong ovate, rather broad, black, shining. Head closely, finely, and equally punctured; prothorax very short, 
nearly twice as broad as long, the sides interrupted in the middle, narrowed anteriorly, anterior angles 
broadly rounded, hind angles rectangular, anterior margin almost straight, base strongly bisinuate, and 
with a short, very shallow, oblique impression on each side near the middle, between which the margin is 
deeply impressed within, with an indistinct central line, finely and not very closely punctured, the disc 
shining, the sides dull; elytra a little wider than the thorax at the base, humeri distinct, punctate-striate 
(the punctures long and approximate), the interstices smooth and rather convex towards the suture, the 
disc shining, the sides and apex duller, the strize less distinctly impressed behind, and with a reddish spot 
on each side just before the apex. 
Length 14 millim. (92.) 
Hab. Mexico (coll. F. Bates). 
One example. 
Allied to the undescribed Iphthimus undulatus, Chevr., from Guiana. 
GLYPTOTUS. 
Glyptotus, Leconte, Proc. Acad. Phil. ix. p. 75; Lacord. Gen. Col. v. p. 729; Horn, Rev. Ten. N. A. 
p. 841; Leconte & Horn, Class. Col. N. A. p. 377 (1883). 
One species of this genus is known from Texas; we now add another from Mexico 
and Nicaragua. 
1. Glyptotus nitidus. (Tab. V. fig. 24.) 
Glyptotus nitidus, F. Bates, in litt. 
Black, shining. Head smooth, impunctate; prothorax broader than long, widest at the base, narrowing 
gradually anteriorly, the sides distinctly margined and feebly sinuate just behind the middle, anterior 
angles rounded, posterior angles acute, base strongly bisinuate and the margin distinctly impressed within, 
shallowly, finely, and rather closely punctured ; elytra regularly and rather finely punctate-striate, the 
punctures becoming coarser and more distant one from the other towards the sides, interstices flat, smooth, 
or very finely and indistinctly punctured, rarely with shallow transverse wrinkles; prosternum strongly 
declivous behind, the apex not produced. 
Length 7-9 millim. 
Hab. Mexico, Jalapa (Hoge); Nicaragua (coll. F. Bates), Chontales (Belt, Janson). 
Allied to the North-American G. cribratus, Lec., but more shining, the elytra much 
more finely punctate-striate, the thorax wider and more distinctly margined at the base. 
ISICERDES. 
Form of Glyptotus nitidus, Ch. Mentum trapeziform, inflexed on each side, winged, slightly raised in the 
middle anteriorly, anterior angles distinct ; antenne short, scarcely reaching to the base of the thorax, third 
joint short and scarcely as long as the united fourth and fifth, fourth and fifth oboval and subequal, sixth 
“BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, July 1885. QQ 
