LIST OF HOMOPTEROUS INSECTS. 606 



less curved backward at the tips : legs generally quite black. Length 

 of the body 3 — 4 lines ; of the wings (3 — 8 lines. 



a, b. Tenasserim. Presented by — Packman, Esq. 



c. North Bengal. From Miss Campbell's collection. 



d. Philippine Islands. From Mr. Cuming's collection. 

 e,f. Philippine Islands. From Mr. Wood's collection. 



^15. Centrotus vicarius, Fem. 



Niger; abdomen supra canum ; tarsi posteriores picei ; alcB lim- 

 pidce ; ala antic(jB ad costce apicem fusco vittata. 



Has the structure of the two preceding species, but the horns 

 of the fore-chest are shorter ; they are also more curved at the tips 

 than those of C. reponens : wings colourless ; a brown stripe along 

 the tips of the fore borders: legs black; posterior tarsi pitchy. 

 Length of the body 3^ lines ; of the wings 7 lines. 



a — c. Java. From Mr. Melly's collection. 



d. ? Presented by J. G. i^ildren, Esq. 



e,f. ? 



^6. Centrotcs substitutus, Fern. 



Niger; pectus Jiavo-pubescens ; abdomen supra canum; tarsi 

 picei; tarsi postici fulvi ; alee nigra:. 



Like the three preceding species in structure : horns of the 

 fore-chest like those of C. vicarius : breast with a thick patch of 

 pale yellow down on each side in front: legs black; tarsi pitchy; 

 hind tarsi tawny : wings black ; tips colourless ; veins tawny. Length 

 of the body 3 lines ; of the wings 6 lines. 



a. North Bengal. From Miss Campbell's collection. 



a 



17. Centrotus horridulus, Fem. 



Niger, tuberculatum ; tarsi ferruginei ; alee fuscoe. 



Body black, dull, clothed with tawny down, tuberculate: head 

 triangular, hardly broader than long, much narrower than the fure- 

 chest ; hind border of the face obconical, occupying half the length 

 of the head : fore-chest thick, vertical above the head ; shoulders 

 rounded, not prominent; horns above them diverging or ascending 



