240 Mr. F. P. Pascoe on some new 



head above and in front with a deep groove ; eyes very large, 

 approximating above; antenna? (^) rather longer than the 

 body ; prothorax nearly cylindrical, slightly transverse ; elytra 

 finely pubescent, each with three inconspicuous longitudinally 

 elevated lines ; body beneath and legs with slightly scattered 

 hairs. 



This species differs from its congeners in its cylindrical 

 prothorax (at least in the male) and the approximation of the 

 eyes above. In the females in this genus the antennge are 

 usually only half the length of the body ; but in the Formosan 

 P. pallescens^ according to Mr. Bates, the antennge of the female 

 are also longer than the body. The genus is placed by Lacor- 

 daire in the Prionidaj ; it is evidently a transitional form, in 

 which the prothoracic carina, one of the principal characters 

 of the family, ceases to be of more than specific va]ue. 



Prothema variicornis. 



P. oblonga, atra ; antennae articulis sexto ad nonum flavidis ; 

 elytris in medio fasciis duabus, linea humerali obliqua suturaque 

 postice, flavescentibus. Long. 4| lin. 



Hah. Labuan. 



Oblong, opaque black, minutely and closely granulate 

 above ; antenna with the sixth to the ninth joints pale fulvous ; 

 prothorax not longer than broad ; scutellum covered with a 

 pale fulvous pubescence; elytra scarcely broader than the 

 prothorax in the middle, an oblique stripe at the shoulder, 

 two narrow bands in the middle, and a sutural stripe from the 

 posterior band composed of a pale yellowish pubescence ; 

 legs slender, black ; tarsi with pale whitish hairs ; body be- 

 neath with a close silvery pubescence. 



Form and general appearance of P. humeralis, but with a 

 shorter, minutely granulate prothorax, narrower elytra, with 

 a somewhat different arrangement of pubescence, and antennae 

 of two colours. 



Nenenia. 



Caput antice quadratum, postice angustius, fronte escavatum. 

 Aniennce filiformes. Oadi tenniter granulati, subreuiformes, lobo 

 superiore parum producto. Prothorax ad latera tuberciilatus. 

 Elytra parallela. Pedes mediocres ; femora vix elevata ; tarsi 

 sublineares ; coxce anticce subglobosoe, contiguse ; posticce approxi- 

 matae. Segmenta abdominis longitudine sequalia. 



I cannot find a satisfactory place for this genus in Lacor- 

 daire's system. It seems to come nearest to Phalota, but the 

 two lobes of the eye are not widely apart and only connected 



