1897.] PHYTOPHAGOUS COLEOPTJBRA OF AmiCA. 559 



distinct spine ; metatarsus of the posterior legs much longer than 

 the following three joints together ; claws appentliculate ; pro- 

 stemum subquadrate ; raesosternum broader; the anterior coxal 

 cavities closed. 



I suggest this genus for a small species of a Halticide, having 

 the appearance and general characters of most of the smaller 

 species belonging to the group Monoplatiiuv, or bladder-clawed 

 Halticidae, but differing in the simple not inflated claw-joint. 

 The insect seems nearly allied to my genus Allomorpha, but may 

 be at once known by the punctate-striate elytra. The genus would 

 perhaps best be placed near Febra, Clark. 



Ettgonotes longicoenis, n. sp. (Plate XXXIV. fig. 8.) 



Black, antennae and legs flavous ; head and thorax pale 

 fulvous, extremely finely punctured ; elytra black, finely pubes- 

 cent, closely and strongly punctate-striate, the interstices slightly 

 convex ; posterior femora black. 



Length 1 line. 



Head impuuctate, pale fulvous ; eyes very large, frontal 

 tubercles absent ; clypeus broad, raised into a short ridge between 

 the antennae, impunctate ; antennae extending to the apex of the 

 elytra, flavous, the first joint long and slender, the second 

 thickened, a little shorter than the third joint, the fourth one- 

 half longer than the third joint, the others very elongate ; thorax 

 about one-half broader than long, the sides nearly straight, the 

 anterior angles oblique, forming another angle before the middle, 

 the surface rather convex, extremely finely punctured and granu- 

 late; scutellum transverse, black; elytra opaque, black, clothed 

 with short whitish pubescence, regularly and strongly punctate- 

 striate, the subsutural row abbreviated before the middle, the 

 punctures very closely placed, the interstices longitudinally costate : 

 underside and posterior femora black, the other legs flavous ; 

 posterior tibiae not silicate, with a distinct spine, their metatarsus 

 as long as half their length ; prosternum nearly subquadrate ; the 

 anterior coxal cavities closed. 



Hah. Madagascar, Diego-Suarez (Ch. Alluaud). 



DiBOLOsoMA, n. gen. 



Body ovate ; eyes large, rather closely approached, the inter- 

 mediate space with deep oblique grooves ; frontal tubercles absent ; 

 clypeus broad ; antennae rather short, the apical joints distinctly 

 thickened ; thorax transverse, without any grooves or sulci : 

 elytral punctuatiou semi-regular, punctate-striate at the sides; 

 anterior tibiae unarmed ; posterior femora strongly incrassate, 

 their tibiae widened at the apex, the latter sulcate to a short 

 extent, with a distinct spine, the metatarsus as long as the 

 following thi-ee joints together ; claws appendiculate ; prosternum 

 distinct ; the anterior coxal cavities closed. 



In shape the insect for which this genus is proposed resembles 



