LOCUSTID.E. 481 



three vows of spines ; fore tibiae incrassated at the l)ase. Fore wings rather 

 iiariow, shorter by nearly four lines than the hind winps, truncated at the 

 tips; fore border sli<;hlly rounded ; interior border straight, rounded near 

 tlie tip; areolets in the fore part transversely narrow, rejjular, those in the 

 hind part irregular ; scapular vein diverj^ing sliji^litly from the exlerno- 

 medial in the exterior part ; branch of the externo-niedial with two undu- 

 latin<j^ forks ; interno-medial curved towards the tip. Hind wings reticulated 

 towards the tips. 



1, Debroxa cekvina. 

 Fceirj. Cervina, subtus pallidior ; antennce tiigricanles, bad cervincE ; 

 alcE postic(£ diap/iance, basi cervina. 



Female. Fawn-colour, paler beneath. Eyes livid. Antennae blackish, 

 fawn-colour at the base. Hind wings pellucid; veins whitish; apical 

 space fawn-colour. I^ength of the body 15 lines; expansion of the fore 

 wings 46 lines. 



a. South Africa. Presented by Earl Russell. 



Genus PEMBA. 



Mas. Corpus gracile, nitens. Caput subprotninulum, spatio inter 

 antennas latiusculo bicarinato. Oculi fere rolundi, valde prominuli. An- 

 tennae lougtB, graciles. Prothorax tuherculalus, sellatus, transverse bisul- 

 catus; niargo anticus spina valida oblique ascendenle instructus ; spatium 

 posticum dilatatuin, septem spinosum. Prosternum acute bispinosum. 

 Meso- et nietasternum obtuse subspinosa. Pedes graciles; coxae uni- 

 spinosae; femora spinis validis curvalis uniseriatim armata; tibiae spinu- 

 losffi. AlfB anlicae sat latoe, subtiliter reticulatee. Alae poslicae paullo 

 hreviores. 



Male. Body slender, shining. Head slightly prominent, as broad as 

 the fore border of the prothorax; space between the antennce rather broad, 

 with two slight separate keels ; fore part oblique. Eyes nearly round, very 

 prominent. Antenna long, slender. Prothorax tuberculate, saddle-shaped, 

 with two transverse impressed lines; fore border produced into a stout 

 obliquely ascending spine; hinder disk dilated, flat, with three oblique 

 spines on each side and one upright spine on the hind border. Prosternum 

 with two slender acute spines; mesosternum and metasternum with two 

 thick obtuse spines. Cerci stout, curved. Styles of the subgenital lamina 

 short, slender. Legs slender; a spine on each of the coxae ; femora armed 

 beneath with one row of stool curved spines ; fore lemora with three spines ; 

 middle femora willi four; hind femora with nine, these femora incrassated 

 towards the base; four anterior tibiae with two rows of minute spines ; hind 

 tibiae wiih four rows. Wings longer than the body. Fore wings 

 moderately broad, minutely reticulated, a little longer than the bind wings; 

 areolets large ; scapular vein very approximate to the exleruo-medial till 

 near the tip, where it diverges to the cosla. 



Allied to Monocerophnra. 



