484 JOURNAL, BOMBAY NATURAL HIST. 80CLETY, Vol. XXI. 



9. Enclosed area of the median segment more or 



less striated 

 Enclosed area of the median segment not striat- 

 ed 



10. Enclosed area striated in the angles only, or 



with very short strise on the sides 

 Enclosed area striated beyond the angles 



11. Enclosed area striated in the angles, punctured 



in the middle and at the apex ; petiole black; 

 punctures not very deep 



Enclosed area striated in the angles and with 

 very short strise at the sides, the middle 

 smooth and shining ; petiole red ; punctures 

 very deep 



12. Enclosed area entirely longitudinally striated ; 



puncturation of the abdomen coarse and close. 

 Enclosed area not striated at apex ; punctura- 

 tion less coarse and close 



13. Enclosed area of the median segments smooth 



and shining 

 Enclosed area of the median segment punctured 



14. First abdominal segment red, almost twice as 



long as broad 

 First abdominal segment black and yellow, only 

 a little longer than broad 



15. Basal area of the second ventral segment very 



strongly raised ; the wings infuscated on the 

 whole apical margin 

 Basal area of second ventral segment not 

 strongly raised ; wings clouded at the apex 

 only 



16. Enclosed area of the median segment very 



finely and closely punctured , . 



Enclosed area not finely or closely punctured. 

 IV. Enclosed area shining, sparsely and not coarse- 

 ly punctured ; petiole longer than broad 

 Enclosed area coarsely punctured, petiole 

 broader than long 

 18. Sixth ventral segment with a long spine at the 

 apical angles 

 Sixth ventral segment without spines . . 



10 



13 



11 

 12 



C. emarginata 

 Panz. 



C. tvickivari Turn. 



C.fortinata Cam. 



C. ryhiensis Linn. 



14 

 16 



C, comberi Turn. 



15 



C. pulchella Klug. 



