616 CATALOGUE OF 



defined keels ; inner keels parallel ; outer keels diverging towards the 

 face. Eyes ferruginous, elliptical. Prothorax finely scabrous, with a slight 

 keel which is not rounded and is hardly interrupted by the transverse 

 impressed lines; fore border almost straight; sides slightly rounded ; hind 

 border more rounded. Prosternal spine thick, oblique, obtuse, extending 

 almost to the fore border of the mesoslernum. Hind femora nearly as long 

 as the abdomen, with two black spots on the inner side; hind tibiae shorter 

 than ihe hind femora, their spines with black tips. Fore wings cinereous, 

 a little shorter than the body, with a blackish discoidal antemedial streak ; 

 transverse sectors mostly blackish. Hind wings pale cinereous; veins 

 black. Length of the body 15 lines ; expansion of the fore wings 

 28 lines. 



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



CYRTACANTHACRIS NANULA. 



Foem. Fulva, gracilis ; prothorax subcarinatus, subtilissime scaber ; 

 prosterni spina obliqua, sat gracilis, mesosternum attingens ; femora 

 postica nigro utrinque bimaculata ; alee antica pallide cinerea, cor- 

 pore vix breviores, striga discoidali antemedia maculari liturisque 

 plurimis parvis nigris. 



Female. Tawny, slender, paler beneath. Head smooth ; vertex 

 narrow between the eyes, its tip subhexagonal ; front punctured, with four 

 strongly-marked keels; inner keels parallel; outer keels diverging much 

 towards the face. Eyes piceous, tessellated, elongate-elliptical. Prothorax 

 very finely scabrous, with a slight keel which is not rounded and is hardly 

 interrupted by the slight transverse impressed lines ; fore border almost 

 straight; sides slightly rounded ; hind border more rounded. Prosternal 

 spine oblique, rather slender, extending to the fore border of the meso- 

 sternum. Hind femora as long as the abdomen, with two oblique black 

 spots on each side; hind tibiae a little shorter than the hind femora, their 

 spines with black tips. Fore wings pale cinereous, nearly as long as the 

 body, with a discoidal antemedial streak of elongated black spots and with 

 many minute black marks which adjoin the transverse sectors. Hind 

 wings pale cinereous; veins black. Length of the body 10 lines; expan- 

 sion of the fore wings 22 lines. 



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



CYRTACANTHACRIS IMITATRIX. 



Foem. Fulva, sat gracilis ; caput et prothorax nigro interrupte bivittata ; 

 prothorax subcarinatus, subtiliter scaber, vittis duabus exterioribus 

 nigris valde abbreviatis, plagis duabus adhuc exterioribus pallidis 

 quadratis ; prosterni spina robusta, obliqua, suburcuata, mesosternum 

 fere attingens ; tibite poslica testacece ; alee anticce pallide cinerece, 

 corpore paullo breviores, plagis antemediis magnis maculisque post- 

 mediis e venis nigris. 



Female. Tawny, rather slender. Head and prothorax with two 

 slender interrupted black stripes. Head smooth ; fore part of the vertex 

 depressed, hexagonal ; front largely punctured, with four well-defined 

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



