CYPHOTARSIS.—SCELIDOPSIS. . 339 
CYPHOTARSIS. (To follow the genus Scelida, p. 609.) 
Body elongate, glabrous; eyes entire, small; antennw with the second and third joints subequal, the eighth, 
ninth, and tenth thickened (¢); thorax subquadrate, narrowed at the base; elytra depressed, parallel ; 
epipleure broad, indistinct at the apex; legs long and slender ; tibie unarmed ; the first joint of the four 
anterior tarsi broadly dilated and elongate, that of the posterior pair longer than the following three 
joints together ; claws appendiculate; anterior coxal cavities open. 
This genus is proposed for the reception of a single species allied to Scelida and 
Chthoneis. It differs from Scelida in the short third joint of the antenne, and in the 
structure of these organs in the male; and from Chthoneis in the subquadrate thorax, 
and the differently formed antenne. ‘The elytral epipleure are also much broader 
than in either of these genera, and the anterior tarsi have their first joint more than 
usually widened in the male. 
1. Cyphotarsis niger. 
Entirely black, the head and thorax impunctate, the elytra microscopically punctured. 
Length 3 lines. 
¢. Head rather produced, entirely impunctate, the frontal tubercles broad and strongly developed; the palpi 
filiform and pointed; antenne extending to the middle of the elytra, the third joint about one-half 
longer than the second, both short, the fourth joint twice the length of the third, the following three 
joints gradually widened, the eighth strongly thickened, robust and cylindrical, the apical joints 
shortened and becoming gradually thinner; thorax scarcely one-half broader than long, rounded at the 
sides before the middle, narrowed at the apex, the angles very slightly produced, the surface rather flat, 
with a shallow depression at the base, entirely impunctate ; scutellum rather broad ; elytra elongate and 
parallel, subdepressed, extremely minutely punctured, the punctuation only visible under a strong lens ; 
legs long and slender; the first joint of the four anterior tarsi broadly dilated. 
Hab. Mexico, Ixtlan (Flohr, in coll. Jacoby). 
Mr. Flohr has kindly sent me a male specimen of this species; it is probable that 
the female has simple antenne and tarsi. 
SCELIDOPSIS (p. 609). 
4. Scelidopsis (?) violacea. 
Black; the thorax subquadrate, impunctate, without depressions; elytra metallic dark blue, closely punc- 
tured, the interstices slightly rugose. 
Length 2 lines. 
Of elongate, parallel shape; head black, impunctate, the frontal elevations elongate in shape, strongly 
raised, the labrum obscure piceous ; the palpi long and slender ; antennz black, extending to the middle 
of the elytra, the lower three joints obscure piceous, the third joint one-half longer than the second, the 
fourth much longer than the third, the following joints rather shorter ; thorax scarcely broader than 
long, constricted at the base, the sides narrowly margined, the surface impunctate, without depressions, 
plack; scutellum black; elytra metallic blue, rather strongly and closely punctured, the interstices 
sometimes transversely rugose ; epipleurse moderately broad, extending to the apex of the elytra; legs 
and underside black ; tibiee unarmed ; the first joint of the posterior tarsi as long as the following three 
joints together ; claws appendiculate ; anterior coxal cavities open, the prosternum extremely narrow 
but visible. 
Hab. Mexico, Chilpancingo and Xucumanatlan, both in Guerrero (H. H. Smith). 
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