ACRIDID*:. 669 



Female. Testaceous, slender. Head smooth ; vertex with three very 

 slight keels, its tip conical and depressed ; front largely punctured ; keels 

 well defined, diverging towards the face. Eyes ferruginous, elliptical. 

 Antennae slender, much longer than the prothorax. Prolhorax finely 

 scabrous; middle keel and transverse impressed lines slight; lateral keels 

 sharply defined; fore border and sides slightly rounded ; hind horder more 

 rounded. Prosternal spine slender, acute, slightly compressed and oblique. 

 Hind femora as long as the abdomen ; hind tibia? rather shorter than the 

 hind femora, their spines with black tips. Fore wings narrow, pale 

 cinereous, a little shorter than the body ; veins testaceous. Hind wings 

 pellucid ; veins black, testaceous at the base and along the interior border. 

 Length of the body 16 lines ; expansion of the fore wings 32 lines. 



a. Gilolo. From Mr. Wallace's collection. 



30. HETEBACBIS GAVISA. 



Mas. Nigricans, gracilis ; caput et prothorax flaw quadrivittata ; fas- 

 tigium fere rotundum ; antenna apice nigricantes, prot horace multo 

 longiores ; prothorax punctatus, carina media vix determinata ; 

 pectus, abdomen et pedes testacea ; prosterni spina longiuscula, sat 

 gracilis ; abdominis dorsum plaga basali vittisque duabus maculari- 

 bus piceis ; femora postica lutea, apice nigra ; tibia postica virides ; 

 ala an tic ce cinerece, corpore multo breviores. 



Male. Blackish, slender. Head and prothorax with two slender pale 

 yellow stripes and with two broad lateral bright yellow stripes, the latter 

 occupying the front, where they are united. Head smooth ; tip of the 

 vertex depressed, nearly round ; front largely punctured ; keels strongly 

 marked ; inner keels parallel; outer keels slightly diverging towards the face. 

 Eyes seneous, elliptical. Antennae slender, much longer than the prothorax, 

 blackish at the tips. Prothorax punctured, excepting the two calli on each 

 side; middle keel extremely short; lateral keels defined; transverse 

 impressed lines distinct; fore border nearly straight; sides and hind 

 border rounded. Pectus, abdomen and legs testaceous. Prosternal spine 

 rather long and slender. Abdomen above with a piceous basal patch and 

 with two rows of elongated piceous spots. Hind femora luteous, with 

 black tips, longer than the abdomen ; hind tibia? green, rather shorter than 

 the hind femora, their spines with black tips; hind tarsi pale green. Fore 

 wings cinereous, much shorter than the body ; veins tawny, piceous along 

 the costa. Hind wings pellucid; veins black, pale at the base and along 

 the interior border. Length of the body 11 lines; expansion of the fore 

 wings 18 lines. 



a. Ceram. From Madame Ida Pfeiffer's collection. 



31. HETEBACBIS SIMPLEX. 



Fcem. Pallide testacea, sat gracilis ; caput et prothorax vittis duabus 

 subobscurioribus nigricante marginatis ; caput longiusculum, fastigio 

 transverso antice rotundato ; prothorax subtiliter scaber, vix 

 carinatus ; prosterni spina crassa, longa, subacuta; altz anticce 

 cineretB, corpore paullo breviores, costa basi dilatata. 



K 



