304 Mr. F. Bates's descriptions of 



Ncsogcna Ilaarji, n. sp. 



Near iodolimhata, Fairm., but more elliptic, of a bronzed- 

 coppery, almost obscure ; the margins of the prothorax, 

 the stri^ and the reflexed margins of the elytra, blue, or 

 obscure violaceous ; the sides of the elytra are not at all 

 violaceous, but are of the same colour as the back ; the 

 strife are shallower, the intervals less convex, more closely 

 and more intricately alutaceous ; the underside, including 

 the epipleural fold, is brilliant brassy-green, or bluish- 

 green ; the flanks of the prothorax much more faintly 

 wrinkled ; the femora are red, or testaceous-red, with the 

 base and apex, the tibia?, and the basal joints of the 

 antennae, dark cyaneous. 



In both species the prosternum is carved round the 

 coxfB, and is not at all prominent behind. 



Long. 9—10 lin. 



Fianarantsoa. 



Nesogena Coquerelii, viridicuprca, croesus, and, possibly, 

 (Bneipennis, form a group distinguished by the squarer, 

 broader-shouldered, more convex, and more parallel-sided, 

 elytra ; and still more especially by having the flanks of 

 the prothorax more or less closely and coarsely punctured 

 and rugose. In none of the preceding species is there 

 any trace of punctuation on this part. N. viridicuprea 

 is excessively variable in colour, ranging from violet-black 

 to metallic-green and fiery-coppery. My examples are 

 all from Antananarivo. 



N. croesus (Fairm. i. 1.) is exceedingly near to viridi- 

 cuprca, and is only distinguished from it by the form a 

 little less robust and less broad-shouldered ; the prothorax 

 less conical, i. e., more rounded at the sides, and more 

 parallel behind the middle ; the punctuation, and the 

 punctured stria3, a little finer ; the legs, antennaB and mouth 

 organs clear shining red ; and the colour green more or 

 less suffused with violaceous. 



Long. 6 — 8 lin. 



Fianarantsoa. 



Nesogena testnceipes and intermedia, have also the 

 flanks of the ]:>rothorax rugose-punctate ; but they are 

 distinct from all the other species by the anterior tibia? 

 having the outer apical angle produced into a large acute 

 tooth. 



In none of these sjiecies have I seen the femora ]iilose 

 beneath; but I observe, in some examples, the hind tibia? 



