HYMENORUS. 433 
A single male example from Ventanas and a female from Cuernavaca; they appa- 
rently represent the sexes of the same species. 
18. Hymenorus badius. (Tab. XX. fig. 6.) 
Oblong ovate, dull reddish-brown or obscure castaneous, the elytra slightly shining, thickly clothed with short 
pubescence. Head coarsely and rather closely punctured; eyes very large and approximate in the male, 
a little smaller and narrowly separated in the female; antenne rather stout, moderately long, the joints 
not much widened towards their apex, ferruginous ; prothorax transverse, moderately convex, the sides 
parallel behind and rounded and narrowing in front, the hind angles rectangular, the base strongly 
bisinuate, the surface very densely and coarsely punctured; scutellum closely punctured; elytra mode- 
rately long, a little wider than the prothorax at the base, coarsely punctate-striate, the interstices slightly 
convex and sparsely and rather coarsely punctured; legs stout, ferruginous, the first joint of the posterior 
tarsi longer than the following joints united; beneath shining, the ventral surface fine and rather sparsely, 
the sides of the metasternum coarsely, punctured. 
¢. Posterior tibie slightly sinuate within. Fifth ventral segment broadly and shallowly depressed in the 
centre. Metasternum very closely and finely punctured and pubescent in the middle behind. The lateral 
lobes of the last ventral segment very long, narrowly separated, broad and subparallel within for two thirds 
of their length, then abruptly narrowed and with the slender apical portion curved a little inwards and 
pointed at the end; the central sheath broad, the apex a little widened and rather broadly rounded. (Fig. 6.) 
Length 53 millim.; breadth 2} millim. (¢ @.) 
Hab. Mexico, Jalapa (Hége). 
Four examples, two of which are males. ‘This species is very closely allied to 
H. foveiventris: it differs in the eyes being larger and more approximate in both sexes 
(especially noticeable in the male), and in the more densely punctured and duller 
thorax, and the stouter legs; and also in the fifth ventral segment being unimpressed, 
the posterior tibie merely a little sinuous within, and the lateral lobes of the last 
ventral segment very differently shaped, in the male. 
19. Hymenorus rufescens. | 
Oblong ovate, dull reddish-piceous, the elytra slightly shining, thickly clothed with short pubescence. Head 
finely and closely punctured in front, coarsely so on the vertex; eyes very large and approximate in the 
male, a little smaller and very narrowly separated in the female; antenne ferruginous, rather long and 
stout, reaching to the first third of the elytra and with the joints distinctly widened towards their apex in 
the male, more filiform in the female; prothorax transverse, rather convex, the sides parallel behind and 
narrowing and rounded in front, the hind angles rectangular, the base strongly bisinuate, the basal fovex 
very shallow but distinct, the lateral margins prominent and somewhat extended, the surface densely and 
rather coarsely punctured; scutellum closely punctured; elytra scarcely or very little wider than the pro- 
thorax at the base, moderately long, lightly and rather finely punctate-striate, the interstices almost flat 
and finely and somewhat closely punctured; legs ferruginous, the tibiz almost straight, the first joint of 
the hind tarsi longer than the following joints united. 
¢g. Posterior tibiz very slightly sinuate within. The lateral lobes of the last ventral segment rather stout, 
abruptly bent inwards towards the apex and with the apices acuminately extended towards each other; the 
central sheath narrow, the extreme apex widened out and somewhat spoon-shaped. 
Length 51-53 millim.; breadth 2-2; millim. (¢ 2.) 
Hab. Mexico, Jalapa (Hoge), Temax in N. Yucatan (Gawmer). 
Four examples. This species comes very close to H. badius and H. foveiventris, but 
it differs from both in the more finely and more lightly impressed elytral strie and flatter 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, November 1888. 3 KK 
