ACRIDIDiE. 505 



ridge. Legs slender; femora slightly keeled; hind femora with apical 

 spurs ; four anterior tibiae with a few very minute spines ; hind tibiae with 

 two rows of small spines. Wings extending beyond the abdomen. Fore 

 wings somewhat longer than the hind wings. 



1. PA EG A SPAT UL AT A. 



Mas. Cervina aut picea ; afa anticee nigricante subconspersce ; alte 

 posticae limpidce aut cinerea, apud costam cervince, bani nonnunquam 

 ochrucece. 



Mesops gracilis ? 



Male. Fawn-colour or piceous. Eyes livid. Fore wings with some 

 minute blackish speckles. Hind wings colourless or cinereous, sometimes 

 ochraceous towards the base; costal space like the fore wings in colour. 

 Length of the body 12 lilies; expansion of the fore wings 24 lines. 



The description of Mesops gracilis is too short to identify it with this 

 species. 



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

 b /. Natal. From M. Gueinzius' collection. 



Caput antice attenuatum. 

 Genus 8. MORABA. 



Mas. Corpus filiforme, apterum. Caput subascendens, prothorace 

 multo longius, antice longi-conicum el subtus subcarinatum ; frons carinis 

 duabus faciem versus approximatis. Oculi fusiformes, obliqui, sub- 

 prominuli. Antennae lanceolatae; articuli 3o Hum subdilatati, cyathi- 

 formes. Prolhorax laevis, antice subtruncatus, lateribus margineque postico 

 subexcavatis. Pedes graciles ; tibiae spinulosae. 



Male. Body filiform, apterous, cylindrical. Head slightly ascending, 

 much longer than the prothorax ; part in front of the eyes elongate-conical, 

 much shorter than that behind them, slightly keeled beneath ; front with 

 two approximate keels, which slightly converge towards the face. Eyes 

 fusiform, slightly prominent and oblique. Antennae lanceolate, longer than 

 the head; third and following joints to the fourteenth slightly dilated, 

 cyathiform ; the five following joints very small. Prothorax smooth ; fore 

 border slightly truncated ; sides and hind border slightly excavated. Legs 

 slender; four anterior legs short, the spines of their tibia extremely 

 minute; hind tibiae with two rows of minute spines. 



1. MORABA SERRICORNIS. 

 Mas. Cervina ; pedes postici rufescentes, yenubus rufis. 



Male. Fawn-colour. Hind legs reddish ; knees and tips of the 

 spines of the hind tibiae black. Length of the body 22 lines. 



a, b. Port Essington. From Mr. Gould's collection. 



c. Australia. Presented by the Entomological Club. 



d. Australia. From Mr. Darnel's collection. 



