1892.] PHYTOPHAGOUS COLEOPTERA FROM MADAGASCAR. 571 



the length of the third, the fourth shghtly longer than the preceding 

 joint ; thorax about one half broader than long, the sides nearly- 

 straight, the surface very little convex, impressed with a few very 

 minute punctures, visible only under a strong lens ; elytra much 

 broader at the base than the thorax, metallic green or cupreous, the 

 sutural and lateral margins sometimes fulvous, the punctures very 

 deep and regular, the interstices rather convex, the apex much more 

 finely and distantly punctured ; underside piceous, the breast with a 

 metallic greenish hue, the legs fulvous ; the femora with a distinct 

 tooth ; claws bifid ; prosternum broadly transverse. 



Rhyparida strtaticolliSj n. sp. (Plate XXXIX. fig. 7.) 



Fulvous, the head and thorax piceous, the antennae flavous ; the 

 seventh joint black ; thorax transverse, longitudinally strigose on the 

 disc; elytra fulvous, with basal depression, strongly punctured 

 anteriorly, nearly impunctate below the middle. 



Length 1| line. 



Vertex of the head convex with a few fine punctures, dark fulvous ; 

 eyes with a very narrow sulcus round their inner margin ; clypeus 

 separated from the face by a deep transverse groove, rugosely 

 punctured ; antennse rather long, flavous, the seventh joint black, 

 the third joint much shorter than the fourth, the terminal joints 

 slightly thickened ; thorax twice as broad as long, but slightly 

 narrowed in front, the sides strongly rounded, the anterior angles 

 rather prominent, the disc strongly and closely longitudinally strigose 

 from, the middle to the base, the anterior portion sparingly punc- 

 tured, fulvo-piceous ; elytra with a deep depression below the base, 

 strongly punctate-striate, the punctures nearly obsolete below the 

 m-iddle; underside fulvous; legs flavous; the femora with a very minute 

 tooth, claws bifid ; the anterior thoracic episternum slightly concave ; 

 prosternum broadly subquadrate, strongly punctured. 



I cannot find any differences whatever in regard to structural 

 characters to justify a separation of this species from Rhyparida, of 

 which, until now, no true species have been known from Africa. 

 The general shape and that of the thorax is the same, the thoracic 

 episternum is not in the least convex, the four posterior tibiae are 

 emarginate at the apex and the claws are bifid ; the peculiar striation 

 of the thorax will distinguish this species at first sight. 



Hemyloticus, n. gen. 



Body elongate ; antennse filiform ; eyes deeply notched ; thorax 

 broader than long ; elytra punctate-striate, the four posterior 

 femora toothed, their tibise emarginate at the apex ; claws bifid, 

 the inner division very short ; prosternum bilobed ; mesosternum 

 quadrate, its base raised, truncate ; the anterior margin of the 

 thoracic episternum convex. 



This genus will enter the section Typophorince, Chap., from all 

 genera of which it differs in the bilobed posterior margin of the 

 prosternum and in the structure of the mesosternum. 



