1122 SUPPLEMENT. 



black stripe beneath : drums irregularly triangular, extending a little 

 beyond half the abdomen, concave on the inner side and conical 

 towards the tips, which are slightly rounded : fore-thighs armed 

 with two long, sharp teeth : wings slightly gray, dark brown along 

 the fore border and about the first and second cross-veins ; veins 

 black, pitchy towards the base. Length of the body 16 lines; of 

 the wings 56 lines. 



a. Java. From the East India Company's collection. 



Page 102—232. 



Genus 12. CICADA. 



Nearly all the species which are mentioned in this catalogue 

 may be divided into the following groups. 



Group 1. (Sp. 1—9, 11—14). 



Of large size, with broad heads, prominent eyes, and with the 

 chest slightly dilated and angular on each side. 



Group 2. (Sp. 10, 15, 17). 



Body linear, somewhat quadrate: head broad: eyes promi- 

 nent: sides of the fore-chest somewhat rounded: hind-scutcheon 

 broad. 



Group 3. (Sp. 16). 



Body linear : head broad : eyes rather prominent: sides of the 

 fore-chest almost linear. 



Group 4. (Sp. 18, 20, 97, 104, 105, 112—141, 144—146, 151, 152, 

 155, 156, 166.) 



Body more or less spindle-shaped : head small, much narrower 

 than the chest : eyes not prominent : sides of the fore-chest concave 

 in the middle, convex in front and behind. 



Group 5. (Sp. 19). 



Head a little narrower than the chest: hind-scutcheon narrow, 

 fonniug a distinct angle on each side. 



