1873.] ZEPHRONIA AND SPHJEROTHER1UM. 181 



18. Zephronia banksiana, n. sp. (Plate XIX. fig. 9.) 

 Dorsal segments, excepting the first, palish chestnut, spotted and 



blotched with pitchy ; head, nuchal plate, and first segment dark 

 chestnut, more or less varied with black ; eyes pale greenish. 



Head shining, densely but finely punctured in front ; nuchal plate 

 with anterior ridge and row of ill-defined punctures ; folded anterior 

 ridge of first dorsal segment unusually thick, lateral wing broad, 

 with feebly developed ridge; dorsal segments for the most part 

 smooth and polished, but with their front edge and anterior half of 

 lateral wings somewhat rugose ; anterior half of last segment finely 

 and densely punctured. 



Length 2 inches, width 1 inch. 



Hab. unknown. Coll. Banks in B.M. 



Allied to Z. sulcatula and Z. zebraica. 



19. Zephronia versicolor. 



Zephronia versicolor, White, Ann. & Mag. Nat. Hist. ser. 3, vol. iii. 

 p. 405. n. 3, pi. 7. f. 3, 3a, 36 (1859) ; Humbert, Myr. de Ceylan, in 

 Me'm. de la Soc. Phvs. et d'Hist. Nat. de Geneve, xviii. pt. 1, p. 41 

 pi. 3. f. 1/(1865). V '* 



Peradenia, Ceylon (Thwaites). Three specimens. Type, B.M. 



Group ba. Head and nuchal plate hairy. 



20. Zephronia leopardina. (Plate XIX. fig. 10.) 



Zephronia leopardina, Butler, Ann. & Mag. Nat. Hist. ser. 4, vol. x. 

 p. 356. n. 5(1872). 



Ceylon (R. Templeton). Tvpe, B.M. 



My observation respecting the hairiness of this Zephronia was to 

 some extent erroneous, the real hairs being confined to the head and 

 nuchal plate. A microscopical examination of the dorsal segments 

 shows them to be to all appearance merely dirty. 



Group bb. All the body hairy. 



21. Zephronia castanea. 



Zephronia castanea, Newport, Ann. & Mag. Nat. Hist. ser. 1 

 vol. xiii. p. 265 (1844). 



Philippine Islands {Cuming). Type, B.M. 



Group be. A narrow projecting (but not shitmig) interrupted longi- 

 tudinal ridge from first to last segment (neither included). 



22. Zephronia innominata. 



Zephronia innominata (Newport), Butler, Ann. & Mag. Nat. Hist 

 ser. 4, vol. x. p. 357. n. 12, pi. 18. f. 8 (1872). 



Philippine Islands (Cuming). Type, B.M. 



May at once be distinguished from Z. castanea by its paler 

 colour, narrower and more distinctly punctured dorsal segments, 

 longitudinal ridge, and broader terminal joint of antennae. 



