PHYTOPHAGA FROM NIAS AND SUALA.TRA 285 



3ii Hoplasoma. oeyloiiensis , Jac. 

 {Plate IV, Jig. 11). 



Nias , Gun. Sitoli , Lelemboli , 12 specimens. 

 37. Syoplia, ja-v^a^nensis, Jac. 

 A single specimen from Hili Zabobo, Isl. of Nias. 



Niasia., n. g. (Galerucidae). 



f 



Body ovate ; antennae with the third to the seventh joints 

 short, triangular, the eighth strongly dilated, the ninth difformed, 

 the eleventh very elongate, thickened, pointed at the apex; tho- 

 rax transverse without depressions; elytra ovate, their epipleurae 

 obsolete belot^- the middle ; posterior tibiae with a small spine ; 

 the first joint of the posterior tarsi as long as the following 

 two joints together, claws appendiculate ; anterior coxal cavities 

 open ; prosternum very narrow but distinct. 



The extraordinary shape of the antennae, possibly only pecu- 

 liar to the male sex, will assist in the recognition of this insect 

 for which I am obliged to establish the present genus ; the 

 apical joint of the antennae is so elongate, and somewhat sub- 

 angulate, as to suggest a twelth joint. 



38. iN^i^sia. difToi'mis , ii. sp. 



{Piale IV, fly. 9). 



Fulvous; the antennae (the three basal joints e.xcepted), black; 

 thorax minutely punctured ; elytra very closely and finely 

 punctured , the interstices also minutely punctate ; apex of the 

 tibiae and the tarsi piceous. 



Length 2 lines. 



Head not longer than broad, impunctate, the frontal tul)ercles 

 broadly sulxjuadrate , bounded behind by a deep transvei-se 



