PLATE 31 



Species of the genus Cylas: 



' A. — Cylas formicarius elegantulus from Honolulu, Hawaii, side view of head and 

 thorax. 



B. — Cylas iurcipennis from Sumatra, side view of head and thorax. 



C. — Cylas brunnetis from East Africa, dorsal view of thorax. 



D. — Cylas brunneus, side view of head and thorax. 



E. — Cylas brunneus, ventral view of thorax. 



F. — Cylas femoralis , side view of head and thorax. 



The abbreviations used on this plate are as follows: pr, Presegmental ring; sc, 

 scutum; si, scutellum; psl, postsegmental ring; pi, pleurum; in, trochantin; c, coxa; 

 bs, basistemite; stl, stemellum; cstl, centrostemellum. 



Drawn by the author. 



