414 HETEROMERA. 
5. Allecula gaumeri. (Tab. XVIII. fig. 20.) 
Oblong ovate, black, rather dull, thickly clothed with short pubescence. Head very closely and rather finely 
punctured ; mandibles subtruncate ; antenne long and slender, fusco-ferruginous ; prothorax short and 
broad, transversely convex, widest about the middle, the sides a little rounded, the hind angles obtuse, 
the basal fovex almost. obsolete, the dise shallowly canaliculate behind, the surface very closely, equally, 
and rather finely punctured; scutellum sparsely punctured ; elytra rather short, a little rounded at the 
sides, finely punctate-striate, the punctures closely packed, the interstices feebly convex and closely and 
finely punctured ; beneath finely and rather closely punctured; the fifth ventral segment normal in both 
sexes ; legs comparatively rather short, brownish-piceous. 
dg. Anterior tibie slightly sinuous within. The lateral lobes of the last ventral segment perfectly connate at 
the base (without trace of median suture), long and very broad, spoon-shaped, inwardly curved towards 
the very broad apex, and hairy within, and each armed towards the base at about the middle of the concave 
part with a stout pointed prominence, the space between the prominences filled with membrane; the central 
sheath broad, its apical portion triangular and setose at the sides. (Fig. 20.) 
Length 102-11 millim.; breadth 4-4? millim. (d 2.) 
Hab. Mexico, Temax in N. Yucatan (Gawmer). 
This species resembles A. ferox, but differs in its less elongate shape, in the more 
rounded sides of the thorax, shorter and more slender limbs, and totally different sexual 
characters. Five examples. 
6. Allecula pilipes. (Tab. XVIII. figg. 21, 21a, ¢.) 
Moderately elongate, dull black, the elytra rather more shining, thickly clothed with short pubescence. Head 
coarsely and rugosely punctured ; mandibles truncate; antenne (d ) rather stout, joints 4-10 each a little 
dilated at their inner apical angle, black, brownish towards the apex ; prothorax small, transverse, feebly 
convex, the sides rounded in front but straight behind, the hind angles obtusely rectangular, the basal 
fovese scarcely indicated, the disc obsoletely canaliculate at the extreme base, the surface coarsely, equally, 
and rugosely punctured ; scutellum rather large, closely punctured; elytra moderately long, much wider 
than the prothorax, subparallel in their basal half, with rather deep striw, the striw with fine very closely 
packed punctures, the interstices slightly convex and somewhat coarsely and closely punctured; beneath 
black, slightly shining, closely and coarsely punctured, the sides of the metasternum and the flanks of the 
prothorax very coarsely so ; legs black, very closely and coarsely punctured, and thickly clothed with long 
hair. 
¢. Anterior tibie sinuate on the inner side before the apex. The lateral lobes of the last ventral segment 
parallel to the middle and then narrowed and obliquely converging, the apices approaching close to one 
another; the central sheath broad, the apical portion elongate-triangular (the apex itself narrowly 
produced) and armed at the sides with very short coarse sete directed backwards. (Fig. 21 a.) 
Length 11 millim.; breadth 4 millim. (¢.) 
Hab. Mexico, Jalapa (Hége). 
One male example. This insect may be recognized by its dull black colour, rugosely 
punctured head and thorax, the latter much narrower than the elytra, the very hairy 
and roughly punctured legs, &c. 
7. Allecula belti. (Tab. XVIII. fig. 22, 2 .) 
Oblong ovate, rather broad, piceous-black, shining, thickly clothed with short pubescence. Head very closely 
and rather coarsely punctured ; mandibles broadly truncate ; antenne fusco-ferruginous ; prothorax very 
broad, strongly transverse, moderately convex, the sides straight from the middle to the base and obliquely 
