DOCIOSTAURUS, 117 



Head large, slightly ascending ; fastigium of the vertex triangular, 

 separated on each side from the eye by a well-marked carina; 

 foveolse of tlie vertex rather superior, broad, rliomboidal, con- 

 verging towards the tips. Antennae filiform, as long as the head 

 and pronotum together ; face slightly oblique, flattened, and 

 hardly sulcated. Pronotum strongly constricted before the 

 middle, tricarinate, the lateral carinse angulated inwards. The 

 sulci scarcely indicated ; the deflexed lobes much higlier than 

 long, with a short curved pale carina on the metapleura. Tegmina 

 and wings perfectly developed ; tegmina rather long and narrow, 

 obtusely rounded at the exti-emity, and with the costal area 

 widened in the male ; wings rather shorter than the tegmina, 

 hyaline. Hind femora as long as the abdomen, simple. Hind 

 tibiae spinose, with the two inner apical spurs subequal ; hind tarsi 

 very slender, with the claws and arolium small. Subgenital 

 lamina horizontally produced in the male ; valves of the ovipositor 

 smooth, shoi't. 



Keij to the Species. 



[The manuscript here leaves doubt as to the author s iuteiition respecting' 

 the following species of Walker's. This is probably due to the very 

 luisatist'actory condition of tlie types. The following notes may help 

 to distinguish the species : — 



1 (2) Tegmina shorter than abdomen, 



with 3 or 4 nearly black spots 

 in discoidal area, separated by 

 yellow spots of smaller size ; 



wings slightlv infuscate at apex, apicaliti, Walk., p. 117, and 



turbatiis, AValk. *, p. 118. 



2 (1) Tegmina longer than abdomen, 



with 3 or 4 small light brown 

 spots in discoidal area; wings 

 entirely clear. 



3 (4) Pronotum without distinct median 



stripe ; tegmina with some 

 vague small spots on radial 



area mundus, Walk., p. 119, and 



epachronwides,\\ aWi., p. 119. 



4 (3) Pronotum witli distinct median 



stripe; tegmina with three large 



spots on radial area decisus, Walk., p. 120.] 



135. Dociostaunis apicalis, Wallc. 



Stenohothrun apicalis, Walker, Cat. Derm. Salt. B.M. v, 1871, 

 Suppl. p. 80. 



Brown, abdomen and under surface testaceous. Antennae 



* Possibly sexes of same species. 



