20 HETEROMERA. 
Head closely and somewhat coarsely punctured, the epistoma produced and a little deflexed and rounded 
in front; prothorax long, about as long as broad, convex, widest at the base, sides straight behind, 
rounded and narrowed in front, anterior angles obtuse not prominent, hind angles rectangular, anterior 
margin nearly straight, the base strongly bisinuate, very closely evenly and somewhat coarsely punctured ; 
elytra a little wider than the thorax, convex, with not very regular rows of coarsish punctures distinct to 
the apex, the interstices with finer scattered punctures and towards the sides and at the apex with some 
very fine indistinct transverse wrinkles. Legs red or reddish brown; the femora paler, and in some 
examples bright red. 
Length 83-10 millim. 
Hab. Nicaracua (Sallé), Chontales (Belt, Janson). 
I have only seen this species from Nicaragua. Closely allied to S. wridis, and with 
the sides of the thorax straight behind as in that species; but comparatively narrower, 
the rows of elytral punctures more regular and better defined, and the legs red. 
6. Schenicus impressus. 
Oblong oval, convex, greenish bronze, shining. Head closely and rather coarsely punctured ; prothorax a little 
broader than long, the sides straight behind, rounded and narrowed in front to the obtuse anterior angles, 
hind angles rectangular, the base bisinuate, closely and rather coarsely punctured, the punctuation closer, 
finer, and somewhat confluent at the sides, shallowly impressed on each side near the margin a little in 
front of the hind angles, with an indistinct smooth central line; elytra wider than the thorax, convex, 
with regular rows of coarse punctures, the interstices with one or two rows of finer punctures, the base 
and suture more closely and finely punctured, finely wrinkled transversely at the sides. 
Length 93 millim. 
Hab. Costa Rica (Van Patten). 
One example. Very near S. viridis, but smoother, narrower, more shining, not quite 
so convex, and the rows of elytral punctures more distinct. 
7. Schenicus chalybeus. (Tab. I. fig. 16.) 
Epitragus chalybeus, Deyr. in litt. 
Oblong ovate, convex, dark greenish bronze, sometimes bronze with a bluish tint, rather shining. Head 
coarsely and closely punctured; prothorax transverse, strongly convex, rounded at the sides, widest a 
little before the base, scarcely narrowed behind, narrowed in front, the angles obtuse not prominent, 
closely, evenly, and very coarsely punctured, the base strongly bisinuate; elytra wider than the thorax, 
with regular rows of moderately coarse punctures, the interstices each with one or two rows of finer 
punctures, more finely and closely punctured along the suture and at the base. 
Length 8-9 millim. 
Hab. Muxtco (coll. F. Bates), Esperanza, Oaxaca (Hoge), El Camaron (Sallé). 
Sent by Hoge in some numbers. Near S. viridis, but more shining, the thorax 
shorter, the sides more rounded and not straight behind; the punctuation of the thorax 
coarser, and of the elytra coarser, more regular, and less confused. 
8. Scheenicus difficilis. 
Epitragus difficilis, Boucard in litt. 
Oblong ovate, convex, greenish bronze. Head coarsely and closely punctured; prothorax of the same form as 
