ACRTDIDJD. 667 



Group 2. 



Mas. Corpus gracile. Caput conicum ; fastigium subfusi forme, 

 sulcis duobus interrupts clavatis; irons sparse punctata, carinis quatuor 

 indeterininatis. Oculi non prominuli. Antennae graciles, filiformes, capiti 

 et prothoraci ad unum aequilongae. Prothorax subtilissirae scaber, sub- 

 tricariuatus, disco fere piano. Prosterni spina crassa, transversa, sub- 

 clavata, subincisa. Pedes graciles; femora postica abdomine multo 

 longiora; tibiae posticae pilosae, spinis exterioribus brevissirnis. Alae 

 corpore breviores. 



Male. Body slender. Head conical, smooth ; tip of the vertex sub- 

 fusiform, with two clavate interrupted furrows which converge hindward ; 

 front thinly punctured, slightly retracted, with four hardly-defined keels 

 which diverge towards the face. Eyes subellipiical, not prominent, straight 

 along the fore border, much rounded on the hind border. Antennae slender, 

 filiform, as long as the head and the prothorax. Prothorax very finely 

 scabrous; disk nearly flat, with three slight keels, the lateral keels con- 

 verging slightly towards the fore border; transverse impressed lines 

 distinct; fore border hardly rounded; sides and hind border slightly 

 rounded. Prosternal spine thick, transverse, increasing in breadth towards 

 the tip, which is slightly notched. Legs slender; hind femora much longer 

 than the abdomen ; hind tibiae pilose, rather shorter than the hind femora, 

 their spines on the outer side very short. Wings rather shorter than the 

 body. 



25. HETERACRIS VAUICORNIS. 



Mas. Fulva; antenna albidce, subtus ferruginece ; prothorax disco 

 ferrugineo, strigis duabus posticis pallide viridibus, slrigis duabus 

 laleralibus piceis obliquis ; prosterni spina albida ; femora postica 

 intus nigro biplagiata ; alee anticce pallide cinerece, villa pallide 

 viridi vittaque anteriore e plagis nigricantibus. 



Male. Tawny. Eyes ferruginous. Antennae whitish, ferruginous 

 beneath. Prothorax with a ferruginous disk, with a pale yellow callus and 

 an oblique piceous streak on each side, and with a pale green streak on the 

 hind part of each lateral keel. Prosternal spine whitish. Hind femora 

 with an olive-green tinge on the outer side and with two black patches on 

 the inner side ; spines of the hind tibise black, pale at the base. Fore 

 wings pale cinereous, with a pale green stripe, which is continued from the 

 streak on the prothorax and with an anterior stripe of blackish patches, 

 which successively increase in size from the base to the lip, which the last 

 of them wholly occupies ; veins whitish or pale green, except in the patches. 

 Hind wings pellucid, with black veins. Length of the body 14 lines ; 

 expansion of the fore wings 24 lines. 



a. South Hindostan. Presented by M. J. Walhouse, Esq. 



Group 3. 



Mas. Corpus gracillimum. Caput et prothorax subtiliter scabra. 

 Caput longiusculum; fastigium planum, conicum, porrectum; frons 

 obliqua, carinis quatuor parallelis bene determinates. Oculi elliptic!, 



