634 CATALOGUE OF 



ACRIDIUM OBTUSUM. 



Fcem. Fulvum, gracile, subtus pallide testaceum ; prothorax subcarinatiis, 

 sublililer scaber ; prostenii spina crasna, subobliqua, valde oblusa ; 

 femora posl.ica nigro viltata et bifasciata ; ala anliccB cinerecB, 

 curpore breviores, villa discoidali anlemedia e maculis nigris. 



Female. Piceous, tawny, slender. Mouth, sternum and abdomen 

 pale testaceous. Head smooth ; vertex narrow between the eyes, its tip 

 subhexagonal ; front paler, thinly punctured, with four well-defined keels; 

 inner keels parallel ; outer keels diverging towards the face. Eyes ferru- 

 ginous, elongate-elliptical. Prothorax finely scabrous, with a slight keel, 

 which is not rounded and is hardly interrupted by the slight transverse im- 

 pressed lines; fore border nearly straight, hardly notched in the middle; 

 sides slightly rounded ; hind border more rounded ; a broad, oblique, testa- 

 ceous streak on each side of the pectus. Prosternal spine thick, very 

 obtuse, slightly oblique. Hind femora longer than the abdomen, with a 

 black stripe on the outer side, and with two abbreviated black bands; hind 

 tibiae shorter than the hind femora, their spines with black tips. Fore 

 wings cinereous, rather shorter than the body, with a discoidal antemedial 

 stripe of black spots; veins tawny, here and there blackish. Hind wings 

 pale cinereous ; veins black. Length of the body 14 lines ; expansion of 

 the fore wings 30 lines. 



a. North Australia. Presented by J. R. Elsey, Esq. 



ACRIDUTM EXCLUSUM. 



Foem. Fulvum, gracile, scabrum ; antennce planre, apice picece ; pro- 

 thorax tricarinalus, nigricanle bivillalus, postice sublalescens ; 

 proslerni spina longa, robusla ; tibia poslica rufce ; ahe anlicce 

 cinerecB, corpore vix breviores, venis piceis apud costam fulvis. 



Female. Tawny, slender. Head and prothorax scabrous. Tip of the 

 vertex large, flat, hexagonal ; keels of the front distinctly marked, slightly 

 diverging towards the face. Eyes ferruginous, elongate-elliptical. An- 

 tennee flattened, piceous at the tips. Prothorax widening slightly hind- 

 ward, with a blackish stripe along the outer side of each outer keel, which 

 is rather sharply defined ; dorsal keel slightly marked ; transverse impressed 

 lines distinct ; fore border straight ; sides and hind border rounded. Pro- 

 sternal spine long, stout. Hind femora rather longer than the abdomen ; 

 hind tibioB red, a little shorter than the hind femora, their spines black 

 towards the tips. Wings cinereous. Fore wings nearly as long as the 

 body; veins piceous, tawny along the costa. Length of the body 9 lines; 

 expansion of the fore wings 19 lines. 



a. Victoria River, N. Australia. Presented by J. R, Elsey, Esq. 



ACRIDIUM AI.TENUM. 



Mas. Fulvum, gracile ; caput snbproductum, piceo bivillatum , fastigio 

 subheptagonali, fronle subscabra ; prothorax piceus, scaber, sub- 

 carinatus, plagis lateralibus fulvis ; prosterni spina crassa, obliqua. 



