ACRIDIDJi:. 533 



antennae from the third to the ninth much dilated. Keel of the prothorax 

 very high, much rounded, abruptly declining in the hind part, which is 

 slightly rientate; fore border and hind border acute in the middle. Hind 

 femora extremely deep, with short spines above ; the disk of the outer side 

 tessellated with ridges; hind tibiaj with two rows of stout black-tipped 

 spines, those on the inner side much longer than those on the outer side. 

 Length of the body 27 lines. 



The much more elevated keel of the prothorax and the broader lower 

 border of the hind femora distinguish this species from A. carinaia. The 

 head is less rounded in front than that o( A. punclosa. 



a. East Africa. Presented by Earl Russell. 



B. Antennae non dilatatse. 

 a. Femora postica spinosa. 



Genus 2. PAMPHAGUS. 



Pamphagus, Thunh. Burm. Handh. Ent, ii. 617 — Porthetis, ex parte, 



Serv. 



1. Pamphagus dentatus. 

 -, Roes, Ins. ii. pi. 6, f. 2 — Acrydium dentatum, Deg. Ins. iii. 496, 



pi. 42, f. 3 — Gryllus (liocusta) serripes, Stoll, Saut. et Grill. ])]. 3 h, 

 f. 10— Gryllus (Locusta) Taurus, Stoll, Saut. et Grill, pi. 19 b, f. 72— 

 Gryllus (Locusta) Eiephas, Stoll, Saut. et Grill, pi. 3 b, f. 10— Giyiliis 

 serripes? Fabr. Ent. S)/st.u.48 — Acrydium serripes? Oiiv. Enc.Melh. 

 vi. 216— Acrydium Eiephas, Oiiv. Enc. Melh. vi. 215, pi. 125, f. 9 — 

 Porthetis dentata, Serv. Hist. Orth. 608, 9. 



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



d, e. South Africa. Presented by Major-Gen. Hardwicke. 



f,9- ? 



2. Pamphagus apicalis. 



Fcem. Albido- testa ceus ; caput el prothorax tuherculala ; caput antice 

 couicum subcarinatum subexcavatum ; anttnnce lanceolatce, longius- 

 culcc ; prothorax crista alta rotundata postice subanyulata et spinosa, 

 margine poslico acuta ; segmenta abdominalia unispinosa ; femora 

 postica lata, supra vicessim longi- et brevi-spinosa. 



Female. Whitish testaceous. Head and thorax tuberculate. Head 

 in front conical, slightly keeled and excavated above, with a forked keel 

 beneath. Antennae hardly dilated, rather long, gradually tapering from the 

 third joint to the apical joint. Keel of the prothorax high, rounded, 

 slightly angular in the hind part and armed with stout black-tipped spines 

 from thence to the hind border, which like the fore border is acutely angular 

 in the middle. Abdominal segments with one small spine on each. Hind 

 femora deep, with two rows of small spines beneath and with one row of 

 alternately long and small spines above; disk of the outer side tessellated 



