232 Mr. J.S. Baly’s Deseriptions of uncharacterized 
dehiscent, indistinctly impressed transversely below the basilar 
space, somewhat closely punctured. 
Genus Crrocuroa, Gerst. 
Cerochroa maculicollis. 
Elongata, convexa, nitida, subtus cum antennis nigra; capite, 
thorace, antennarum articulo basali, scutelloque sordide 
flavis, ore verticisque plaga pallide piceis; thoracis punctis 
quinque, 4-1 transversim positis, nigris ; elytris castaneis. 
Long. 6 lin. 
Hab. Old Calabar. 
Antenne longer, more slender, and less compressed than in any 
other known species of the genus; nearly half the length of the 
body. Thorax narrowed and slightly rounded from base to apex ; 
dise coarsely but subremotely punctured. Scutellum subtrigonate, 
distinctly punctured. Elytra somewhat closely punctured. Meta- 
sternum produced anteriorly into a strong spine, which reaches to 
the front edge of the anterior coxee. Extreme apex of abdomen 
obscure fulvous. 
Genus Lmwrana. 
Corpus subelongatum, convexum, non metallicum. Caput modice 
exsertum, perpendiculare ; oculis prominentibus, rotundato- 
ovatis, integris ; antennis corporis longitudini fere equalibus, 
$ robustis, ad apicem attenuatis, articulis 3-8 incrassato- 
dilatatis, 7-8 latitudine decrescentibus, 9-11 gracilibus, fili- 
formibus; 2 gracilibus, filiformibus; in utroque sexu articulis 
primo incrassato, secundo brevi. Thorax transversus, dorso 
impressus. Edytra thorace sat latiora, oblonga, postice paullo 
ampliata, convexa, confuse punctata. Pedes mediocres, ro- 
busti, simplices; coxis anticis erectis, contiguis ; femoribus 
posticis non incrassatis; ¢2bits posticis apice spina valida 
armatis; unguiculis bifidis. Prosternum obsoletum. 
Type Letana histrio. 
The spine at the apex of the hinder tibiae, the peculiar form of 
the antenne in the male, together with numerous other characters, 
separate this genus from Diamphidia and other allied forms. 
Letana histrio. 
Subelongata, postice paullo ampliata, convexa, pallide fulva, 
subnitida; oculis, antennis (harum articulis basalibus infra 
exceptis), pectore, pedibus, scutello, elytrisque nigris; his 
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