PHYTOPHAGA FROM THE BATU ISLANDS 411 



to either margin is placed immediately before the middle of 

 each elytron and a similar one at a little distance before the 

 apex ; abdomen and legs llavous, tiie upper edge of the femora 

 near the apex, black. 



A single specimen, well distinguished by its system of colo- 

 ration. 



33. Haplosonyx batuensis, n. sp. — Black, the apical joints of 

 the antennae and the alxlomen and tarsi fulvous ; thorax strongly 

 punctured, elytra closely and strongly punctate, the anterior 

 half violaceous blue, the posterior one fulvous. 



Length 7 mill. 



Head dark purplish at the vertex, with a few fine punctures, 

 margined with fulvous anteriorly, clypeus triangular, strongly 

 thickened, piceous, antennae extending beyond the middle of the 

 elytra, black, the apical three joints flavous, the second and 

 third joint extremely small, the others very elongate, pubescent; 

 thorax twice as broad as long, the sides nearly straight^ the 

 anterior angles obliquely thickened, the posterior ones acute, the 

 surface with a broad and deep sulcus, black, strongly and some- 

 what closely punctured, scutellum longer than broad, black, 

 with a few fine punctures ; elytra without l)asal depression , 

 rather strongly, closely and evenly punctured, dark purplish- 

 blue, the posterior porfion from slightly below the middle, ful- 

 vous, shoulders prominent with a deep depression within, under- 

 side and legs black, the abdomen and the apex of the tibiae as 

 well as the tarsi fulvous. 



A single specimen allied to H. basalts, Jac. but w^ith differently 

 coloured head, thorax and underside and with blue not black 

 anterior portion of elytra. 



