20 jotjbnali of entomology and zoology 



Key to the Pup^ of Ekioceka 



1. Size large (length 25 mm. or over) ; pronotal breathing 



horns tapering to the acute tip; cephalic crest small, 

 reduced to four tubercles; cell Mi on wing-pad present 

 and usually evident; a strong spinous tubercle on either 

 side of the median line at the base of the second abdom- 

 inal tergite; a tubercle on the eye. (Mesonotal scutellar 

 lobe, conspicuous, projecting). spinosa 0. S. 



Size small (length under 18 mm.) ; pronotal breathing horns 

 about uniform in diameter throughout their length, blunt 

 at apex; cephalic crest prominent, in some species so 

 large as to conceal from beneath the pronotal breathing 

 horns ; cell Mj on wing-pad absent ; no spinous tubercle 

 at base of second abdominal tergite ; no tubercle on eye.. 



2. Antennfe of S elongate, reaching almost to the tip of the 



wing-pad; lobes of the cephalic crest triangular, rather 

 pointed at the apex, the lobes when viewed from beneath, 

 tending to diverge apically; pronotal breathing horns 

 short, not much longer than a single lobe of the crest; 

 median scutellar lobe conspicuous, projecting; hind tarsi 

 projecting considerably beyond the level of the inner 

 two; wing-pads usually showing cross-vein r beyond the 

 fork of R2+3 ; spine on antennal scape present. 



longicornis Walk. 



Antennae of S short like the 9 , reaching just beyond the 

 base of the wing-pad; lobes of the cephalic crest more 

 roimded, thickly covered with rounded protuberances, 

 the lobes when viewed from beneath, tending to converge 

 apically; pronotal breathing horns long, exceeding the 

 whole crest in length ; median scutellar lobe not apparent ; 

 all the tarsi about on a level; wing-pads pale, showing 

 cross-vein r before the fork of R2+3; spine on antennal 

 scape absent. fultonensis Alex. 



