ACRIDIDJ5. 661 



two sli^lit ferruginous stripes; tip conical, convex ; front thinly punctured, 

 with four keels which diverge towards the face. Eyes lurid, oval, speckled 

 with black, much rounded on the hind side. Prothorax very finely 

 scabrous, narrower in front ; disk nearly flat, with three very slight keels; 

 transverse impressed lines slight; fore border and hind border nearly 

 straight; sides rounded. Prosternal spine very stout; its breadth more 

 than twice its thickness. Abdomen with a short black stripe on each side. 

 Hind femora a liitle longer than the abdomen, partly red beneath, with 

 two rows of black dots on the outer side; hind tibite red, much shorter 

 than the hind femora, their spines with black lips. Wings rudimentary. 

 Fore wings striped like the head and the prothorax. Length of the body 

 10 lines. 



a. South Africa. Presented by Sir A. Smith. 



12. Heteracris speciosa. 



Fcera. Testacea, sal gracilis; caput longiusculum, nigro postice bino- 

 tatum et anlice bistrigatum, fasligio convexo subelliptico nigro- 

 bilineato ; antennce apices versus picece ; prothorax vitlis duabus 

 plagisque duabus exterioribus jlavo unimaculalis fuscis, maculis 

 duabus anlicis nigricantibus triavgularibus ; prosterni spina pallida 

 flava, transversa bilobata ; femora antica vitta inleriore nigricanle 

 interrupta abbreviata. 



Female. Testaceous, shining, rather slender. Head smoothj elongate ; 

 tip of the vertex convex, subelliplical ; a black line along the inner side of 

 each antenna, and a blackish streak extending from each eye to the face; 

 a small black mark adjoining the hind side of each eye ; front hardly 

 punctured ; outer keels hardly visible; inner keels slight, diverging 

 towards the face. Eyes tawny, subelliptical, very much rounded on the 

 hind side. Antennae piceous towards the tips. Prothorax finely scabrous, 

 with three slight keels, the lateral keels converging towards the fore border ; 

 a brown stripe on each side, bordered by the lateral keel; a blackish tri- 

 angular mark on each side of the fore border ; a large brown patch on each 

 side including a pale yellow callus ; fore border and sides slightly rounded ; 

 hind border more rounded. Prosternal spine pale yellow, transverse, more 

 than twice broader than thick, deeply notched in the middle, and thus 

 forming two rounded lobes. Hind femora much longer than the abdomen, 

 with an interrupted and abbreviated blackish stripe on the inner side; 

 hind tibiae rather shorter than the hind femora, their spines with black 

 lips. Wings rudimentary. Length of the body 16 lines. 



The specimen described is not fully developed. 

 a. Sierra Leone. Presented by the Rev. D. F. Morgan. 



13. Heteracris calceata. 



Acridium calceatum, Serv. Hist. Orth, 683. 



The blue hind tibia; with two white bands distinguish it from the 

 other species of the genus here described. 



Cape. 



