ACRIDID^. 517 



elevated border, shorter than the part behind them ; front with four keels, 

 of which ibe inner pair are parallel and approximate to each other. An- 

 tenna ferrufjinous, setaceous, slender, lonjjer than the head and the pro- 

 thorax too;ether. Prothorax, prosternum and legs in structure like those of 

 O. semipicta. Tibiae, tarsi and hind femora towards the tips red. Wings 

 brownish cinereous. Fore wings broadly green along the costa ; veins else- 

 where red. Hind wings rather shorter, with brown veins. Length of the 

 body 16\ lines; expansion of the fore wings 26 lines. 



a. ? 



41. Opomala cingulata. 



Mas. Teslacea; caput suhcarinatum, prolhorace sat hrevius, antice coni- 

 ctim, fronte qnndricarinata ; oculi elliptici ; antenna: setacecE, non 

 dilatatcB ; prothorax subliliter punctatus, carinis tribus dorsalibus 

 carinulisque nonnuliis exlerioribuft ; prosternum transverse sub- 

 jiigntmn; abdominis segmenta dorsalia fiisco,fasciata ; ala posticce 

 diaphancE, basi nonnunquam subrosece. 



Male. Testaceous. Head with a slight keel, rather shorter than the 

 prothorax, conical in front of the eyes; front with four keels; the inner pair 

 diverging from between the eyes to the middle, converging there and then 

 parallel to each other till they join the fore border. Eyes elliptical, oblique, 

 prominent. Antennae setaceous, not dilated, much longer than the head 

 above. Prothorax minutely punctured, with three keels, the lateral pair 

 very slightly undulatinsr: some exterior indistinct and interrupted keels. 

 Prosternum with a slight transverse ridge. Abdomen with an abbreviated 

 brown baud on each segment above. Legs rather slender; spines minute, 

 especially those on thefour anterior tibife. Wings extending beyond the 

 abdomen. Hind wings pellucid, a little shorter than the fore wings, 

 occasionally with a rosy tinge on the hind part near the base. Length of 

 the body 7 — 10 lines ; expansion of the fore wings 15—19 lines. 



a,b. ? 



42. Opomala seerata. 



Mas. Ferruginea, subtus fulva ; caput et prothorax subrugulosa ; caput 



prothorace paullo brevius, antice longi-conicum, f rente sexcarinata; 



oculi fusifonnes ; antenna lanceolatce, latiuscula ; prothorax uni- 



carinalus, antice rolundatus, postice arcuatus ; prosternum transverse 



jugatum ; abdominis segmenta dorsalio unispinosa. 



Male. Ferruginous, tawny beneath. Head and prothorax slightly 



rugulose. Head a little shorter than the prothorax, elongate-conical in 



front of the eyes; front with six keels, of which the inmost pair diverge 



slightly towards the face. Eyes fusiform, oblique, prominent. Antennae 



lanceolate, rather broad, much longer than the head above. Prothorax 



with a middle keel and with three transverse impressed lines; fore border 



rounded; hind border somewhat arched ; sides straight. Prosternum with 



a transverse ridge. Abdomen with a spine on the hind border of each 



dorsal segment. Legs moderately stout. Wings very short. Length of 



the body 12 lines. 



The specimen described is incompletely developed. 



