626 CATALOGUE OF 



slightly acute. Hind femora rather shorter than the abdomen ; hind knee 

 black; hind tibiae nearly as long as the hind femora, their spines with 

 black tips. Fore wings cinereous, a little shorter than the body ; veins 

 pale. Hind wings transparent ; veins mostly dark. Length of the body 

 15 lines ; expansion of the fore wings 27 lines, 



a. E. Africa. Presented by Earl Russell. 



ACRIDIUM FUMIDUM. 



Mas. Obscure viride, sat gracile ; caput et prothorax nigro bivittata ; 

 clypeus pallide viridis ; antenna nigrce ; prothorax scaber, vix 

 carinatus ; prosterni spina crassa, obliqua, mesosternum non 

 attingens ; abdomen nigrum, viridi fasciatum ; pedes nigri, femori- 

 bus viridi bivittatis ; alee, anticce sordide rufescentes, corpore bre- 

 viores. 



Male. Dark dull green, rather slender. Head and prothorax with a 

 black stripe on each side. Head thinly punctured; tip of the vertex 

 depressed, hexagonal ; front with four strongly-marked keels ; inner keels 

 nearly parallel ; outer keels diverging slightly towards the face ; clypeus 

 pale green. Eyes luteous, elongate-elliptical. Antennae black, slightly 

 flattened. Prothorax scabrous, with an extremely slight keel, with four 

 distinct transverse impressed lines ; the stripe on each side including two 

 calli and extending to the fourth line ; fore border nearly straight ; sides 

 slightly rounded; hind border much rounded. Prosternal spine thick, 

 oblique, rounded at the tip, not extending to the mesoslernum. Abdomen 

 black, with a broad green band on each segment. Legs black ; femora 

 with two green stripes; hind femora rather shorter than the abdomen ; hind 

 tibiae rather shorter than the hind femora. Fore wings dull reddish, rather 

 shorter than the body ; veins reddish or green. Hind wings cinereous; 

 veins black. Length of the body 18 lines; expansion of the fore wings 

 30 lines. 



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



Madagascar. 

 ACRIDIUM EXEMPTUM. 



Foem. Testaceum, gracile, scabrum ; caput breve, inter oculos transverse 

 carinatum ; prothorax brevis, carinatus, margins postico subangulato ; 

 prosterni spina valida, breviuscula, subacula; alee anticce cinerece, 

 corpori cequilongce. 



Female. Testaceous, slender. Head and prothorax scabrous. Head 

 short, with a transverse ridge between the eyes ; tip of the vertex hexa- 

 gonal ; keels of the front well defined ; inner keels converging towards the 

 face; outer keels diverging. Eyes fusiform. Prothorax short ; keel well 

 defined, hardly interrupted by the slight transverse impressed lines; fore 

 border slightly rounded ; sides more rounded ; hind border slightly 

 angular. Prosternal spine stout, rather short, slightly acute. Hind femora 

 rather longer than the abdomen ; hind tibia? a little shorter than the hind 

 femora, their spines with black tips. Wings cinereous; veins tawny. 



