OTOCERUS. 379 
space shallowly longitudinally impressed ; eyes exceedingly large, transverse, approximate ; antenne rather 
short, moderately stout, joints 4-10 rather broad, flattened, each a little produced at their inner apical 
angle, 4 broader and very much longer than 3, 5-8 about equal in length and breadth, each much shorter 
than 4,9 and 10 rather narrower, subequal, 11 oblong ovate, the joints brownish-piceous, the extreme base 
and apex ferruginous ; prothorax large and broad, strongly transverse, not very convex, the sides immar- — 
ginate, nearly straight (though feebly sinuate) behind, very slightly narrowed in front, and with a short 
sharp median tooth, the base bisinuate, the apex nearly straight, both very distinctly margined, the anterior 
angles rather prominent, the hind angles subacute, the basal foves large but shallow, the dise with traces 
of a smooth slightly depressed longitudinal groove behind and transversely depressed before the base, the 
surface uneven, and closely, irregularly, and somewhat coarsely punctured ; scutellum triangular, almost 
smooth ; elytra long, subparallel in their basal half, a little depressed on the disc, very coarsely and 
regularly crenate-striate, the crenate punctures becoming a little finer behind, the interstices almost 
smooth and regularly convex throughout; beneath more shining, sparingly (the ventral segments more 
coarsely at the sides) but somewhat coarsely punctured, the fifth ventral segment closely so, the sides of 
the metasternum and the flanks of the prothorax very coarsely punctured; legs moderately long and 
stout, very closely and coarsely punctured; the first joint of the posterior tarsi long, longer than the 
apical joint ; anterior tibie nearly straight, and towards the apex thickly clothed with hair within, and 
the fifth ventral segment flattened in the middle behind, in the male. 
Length 17 millim.; breadth 54 millim. (¢.) 
Hab. Guaremara, Torola 1000 feet (Champion). 
A single example, found by myself in the vicinity of Escuintla. The less strongly 
dilated antenne, larger and broader and more coarsely punctured thorax, broader and 
more parallel and more coarsely crenate-striate elytra, shorter and more coarsely punc- 
tured legs, and other characters readily distinguish O. toro/e@ from O. dilaticornis. 
8. Otocerus nicaraguensis. (Tab. XVI. fig. 20, 3.) 
Elongate, subcylindrical, convex, bright sneous, with cupreous or greenish tints. Head moderately coarsely 
and somewhat sparingly punctured, shallowly impressed between the eyes, the latter very large and sub- 
approximate in the male, rather smaller and more distant in the female; antenne in the male long and 
rather slender, joint 3 short, joints 7-10 about equal in width, very much longer than broad, slightly 
decreasing in length outwardly, 4-10 a little extended at their inner apical angle, 11 as long as 10 and 
bluntly rounded at the apex—in the female shorter and more distinctly widening outwardly, the penul- 
timate joints much shorter and subtriangular, the apical joint ovate—brownish or piceous, the extreme 
apex lighter, the basal three joints greenish-eneous ; prothorax transversely convex, broad, strongly trans- 
verse, subquadrate, the sides very finely margined (the margin not visible from above), almost straight 
(though usually a little sinuate), and quite as broad (or broader) in front as at the base, the apex nearly 
straight in the middle, the base slightly sinuous, the former in the centre and the latter very strongly 
margined, the anterior angles rounded but rather obliquely cut off in front (when viewed from above) and 
a little prominent, the hind angles sharply rectangular or subacute, the disc obsoletely canaliculate, some- 
what deeply so behind, with a deep rounded fovea on each side a little behind the middle, and strongly 
transversely impressed before the base, the basal fovese very deep and connected by the basal depression, 
the surface somewhat coarsely and deeply but rather sparingly punctured; scutellum subtriangular, 
sparingly punctured; elytra moderately long, subparallel in their basal half, more convex towards the 
base, somewhat depressed a little behind the scutellum, finely striate-punctate, more coarsely so outwardly 
in the anterior half, the punctures oblong in shape and approximate and towards the apex becoming finer 
and shallower, the scutellar row very deeply impressed, the interstices broad, almost smooth, and strongly 
convex throughout, the surface greenish-sneous, the raised interspaces more or less cupreous, the apices 
rounded; beneath glabrous, bright greenish-sneous, sparingly (the fifth ventral segment more closely) 
but not very finely punctured, the flanks of the prothorax and the sides of the metasternum coarsely so ; 
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