TTPHLOCYBI>Mi:. 399 



Subfamily VI. TYPHLOCYBINiE. 



TyphlocybidsD, Kirseh. Cicad. v. Wiesbd. p. IG (1868). 

 Typhlocybides, Sahib. Cicad. p. C9 (1871). 

 Tvphlocybje, Fieb. Rev. Mag. Zool. (3) iii, p. 405 (1875). 

 Typhlocybiiii, Puton, Cat. Hem. Pal. p. 8G (1886) : Woodto. Psyche, 



\, p. 211 (1890). 

 Typhlocybina, Van Duzee, Tr. Am. Ent. Soc. xix, p. 298 (1892) ; 



' Oslum. Verz. Pal. Hem. ii, Homoj^t. i, p. 187 (1906). 

 Typhlocybina}, Gillette, Proc. U. 8. Nat. 3Ia>>. xx, p. 710 (1898), 

 EupterygiiiEe, Kirk. Rep. E.vp. Stat. Haw. Plant, Assoc, pt. ix, p. 356 

 (1906). 



The Typhlocybinae are readily separated from all the other 

 subfamilies of Ihe Jassidse by the four longitudinal veins or 

 sectors of the tegmina which run to the transverse veins defining 

 the apical cells without branching, so that there are no anteapical 

 cells, and also by the absence of supernumerary cells in the wings 

 (Gillette). Tegmina usually without appendix. JN'otwithstanding 

 these clear characteristics there is still diversity of opinion as to 

 the position of some genera in this subfamily. Thus Kirkaldy, 

 in 1900, founded his genus Nirvana which he stated " may be 

 placed provisionally near the American genus Spanberr/iella, Sign., 

 a genus undoubtedly allied to Hecalus and placed in the Jassinas 

 (Acocejyhalides, Puton)." Melichar and myself (ante, p. 281) have 

 followed this direction of its founder in the placing of Nirvana. 

 But Kirkaldy has recently altered his opinion (Eep. Exp. Stat. 

 Haw. Plant. Assoc, Bull, iii, p. 68 (1907)), and has now^ stated 

 that " it is very likely to be an Eupterygine genus," or in other 

 words to belong to the Typhlocybinae. 



In giving synopses of the genera I am confining myself to 

 those here enumerated. As Edwards remarks, and in agreement 

 with other writers, " the genera are readily separable by the 

 characters derived from the venation of the elytra and wings," 

 but with scanty material the wing venation cannot always be 

 exposed. 



Division EMPOASCABIA. 



Sectors of posterior wings ending in a marginal vein. 

 I have included Homa in this division, but liave very imperfectly 

 seen the wing venation in the unique typical specimen. 



