NO. 1910. NOTES ON AFRICAN ORTnOPTERA—REHN. 475 



faintest trace of a median carina. Metathorax half the length of the 

 cephalic femora, carinate in similar fashion to the mesothorax; median 

 segment slightly transverse, cephalic and caudal margins of segment 

 arcuate cephalad . Abdomen with all except the extreme distal segments 

 distinctly longitudinal, a weak median carinae and two pairs of lateral 

 carintc more or less distinct, but never strongly marked ; anal segment, 

 longitudinal compressed, strongly tectate, median carina distinct, cau- 

 dal margin arcuate with a small but deep V-shaped median emarginat ion 

 exposing the small subdigitiform supra-anal plate; cerci completely hid- 

 den; operculum lanceolate, reaching nearly to the apex of the anal 

 segment, non-carinate ; seventh ventral abdominal segment margined 

 laterad by prominent carinae and wath a distinct median pair of the 

 same, distal margin produced into an acute-angulate roughened lobe. 

 Cephalic femora falling but little short of the meso- and metathorax 

 in length; tibiae very slightly exceetling the femora. Median femora 

 equal to about two-thirds the cephalic femoral length; tibiae exceed- 

 ing the femora by half the prothoracic length. Caudal limbs missing. 

 General color prout's brown, becoming wood brown on the head 

 and more or less washed with the same color on the limbs and with 

 6cru drab on the apex of the abdomen. 



ifeasurements. 



mm. 



Length of body 77. 



Length of prothorax 2. 5 



Length of mesethorax 15. 



Length of metathorax (incL med . segm.) 12. 6 



Length of cephalic femur 25. 



Length of median femur 17. 5 



Length of caudal femur 



The type is unique. 



