PHYTOPHAGOUS COLEOPTEllA FROM NEW GUINEA 499 



margins feebly rounded and slightly constricted at the base, 

 anterior angles slightly oblique and thickened, the surface ini- 

 punctate, black, the extreme lateral margins fiavous, scutellum 

 elongate, black, elytra wider at the base than the thorax, 

 slightly widened towards the middle, with rather broadly re- 

 Hexed lateral margins, the surface finely and closely punctured, 

 yellowish-white, the suture from below the scutellum black, four 

 other black transversely subquadrate spots are placed on each 

 elytron, of these one is situated at the base, the second, before, 

 the third, below the middle and the fourth near the apex, the 

 latter only extends to the suture, the others are abbreviated 

 at each end, under side and legs black, tibiae unarmed, claws 

 bifid, anterior cavities open. 

 Moroka 1300 m. 



GRONOVIUS, gen. n. 



Body robust, elongate and convex, glabrous, palpi slender, 

 antennae filiform, the third joint the longest, thorax transverse, 

 longitudinally and transversely sulcate, the sides strongly bi- 

 dentate, elytra with three deep discoidal depressions, the sides 

 deflexed and sulcate, rugosely punctured, legs slender, tibia? 

 longitudinally sulcate, unarmed, metatarsus of the posterior legs 

 as long as the following joints together, claws bifid, presternum 

 invisible between the coxoe, the anterior cotyloid cavities open. 

 This large and handsome species will find its place near Sastra 

 Baly, it differs from this and the other genera of this group 

 as well as from any of the Galerucidae with which I am 

 acquainted by the structure of the thorax, the sides of which 

 are armed with tw^o acute teeth, the elytra are very ample 

 and convex and their depressions are very strongly marked. 



Type. Gronoviiis imperialls. 



37. Grronoviixs imperialis, sp. n. 



Metallic cupreous or purplish above, antennae and legs bla- 

 ckish, thorax closely and strongly punctured, elytra rugosely 



