320 PHYTOPHAGA. 



4. Pelonia seminigra. (Tab. XIX. fig. 6.) 



Below black, shining; base of the femora flavous; above obscure fulvous; antennae, sides of the thorax, 

 obscure fuscous ; elytra finely punctured, opaque fulvous, two longitudinal bands of each elytron obscure 

 fuscous. 



Length 1| line. 



Eab. Panama, Volcan de Chiriqui {Champion). 



At once distinguished from the preceding species by the shining black underside and 

 the scutellum ; the antennae are rather more than half the length of the body and have 

 the first joint flavous ; the head and thorax have the same shape and sculpture as P. clarki, 

 but there is another, although obscure, central fuscous band in addition to those at the 

 sides of the thorax. The elytral bands are so obsolete as to be almost invisible in the 

 one specimen before me, and it is very probable that the species varies in regard to the 

 elytral and other markings. It is a larger insect than P. clarki, and the ground-colour 

 is a darker fulvous. 



APHANOCERA. 



Body elongate; eyes small, entire; palpi robust, the third and fourth joints subequal, the last conical; 

 antennae filiform, the first joint robust, the second half the length, third and following joints subequal. 

 Thorax nearly square-shaped, the angles not produced; surface near the base with an indistinct transverse 

 groove, limited laterally by a longitudinal fovea. Scutellum trigonate; elytra elongate, their surface 

 punctate -striate. Posterior femora moderately incrassate ; tibiae dilated at the apex, all armed with a 

 small spine ; tarsi triangularly dilated, the first joint but slightly longer than the second ; claws appen- 

 diculate; prosternum narrowly elongate, longitudinally sulcate; anterior coxal cavities open. 



The elongate shape, which somewhat resembles the genus Cacoscelis, nearly square- 

 shaped thorax with its basal groove, the punctate- striate elytra, and the armed tibiae, in 

 connexion with the open coxal cavities, will without difficulty separate the present 

 genus from any other belonging to the present division. The only species obtained by 

 Mr. Champion is of comparatively large size. 



l. Aphanocera Mveola. (Tab. XIX. fig. n.) 



Obscure fulvous, shining; antennae, tibiae, and tarsi black; head and thorax impunctate; elytra closely 

 punctate-striate, the interstices slightly convex. 



Length 4 lines. 



Head transversely grooved between the eyes ; frontal tubercles very distinctly raised ; clypeus very narrow* 

 forming an indistinct transverse ridge; antennae nearly half the length of the body, black; thorax 

 scarcely broader than long, the sides evenly rounded with a narrow margin, anterior and posterior 

 margin straight; surface impunctate, shining; the basilar groove only distinct at the middle, limited at 

 each side by a longitudinal fovea ; elytra obscure fulvous, rather darker near the base, slightly constricted 

 at the sides below the middle, their shoulders prominent, surface closely punctate-striate, the punctures 

 moderately deeply impressed and often doubled, the punctuation visible, but more finely to the apex, the 

 interstices very slightly convex ; epipleurae concave, extending to the apex ; base of the femora more or 

 less fulvous, the rest black. 



Ilab. Panama, Volcan de Chiriqui {Champion). 

 Two specimens were obtained. 



