EMl'OASCA. 



401 



stramineous ; tegmina hyaline with a faint yellowish tint, claval 

 area (excluding base and extreme apex), basal costal margin, and 

 a transverse fascia beyond middle scarlet-red, immediately behind 

 the transverse fascia is a small piceous-red costal spot, apical area 

 very slightly infuscate ; vertex a little longer than the breadth 

 between eyes at base, evenly transversely rounded in front of eyes. 



Length 4 millim. 



Hah. Ceylon ; Peradeniya {Green). 



Genus EMPOASCA. 



Empoasca, Walsh, Proc. Bosi. Soc. Nat. Hid. ix, p. 316 (1864) ; 



Van Dtizee, Tr. Am. JEnt. Soc. xxi, p. 309 (1894) ; Melich. Horn. 



Faun. Ceylon, p. 21:^ (1903) ; Oshan. Verz. Pal. Hem. ii, Homopt. 



ii, p. 197^1907). 

 Cbloroneura, Walsh, Proc. Bvst. Soc. Nat. Hist, ix, p. 316 (1864) ; 



Woodw. Psyche, v, p. 212 (1889). 

 Chloria, Fieb. Verh. z.-b. Ges. Wien, 1866, p. -508, t. vii, f. 25. 

 Kvbos, Fieb. Verh. z.-b. Ges. Wien, 1866, p. o08, t. vii, f. 20. 

 Chlorita. Fieb. Per. Mag. Zool. (3) iii, 1875, p. 414 ; Oshan. Verz. 



Pal. Hem. ii, Homopt. ii, p. 194 (1907). 

 Cicadiila, A'iH. -Rf^^. Exp. Stat. Hato. Plant. Assoc, pt. ix, p. 357 



(1906). 



Type, E. viridescens, AValsh, a Nearctic species. 



Distribution. Probably almost universally distributed. 



The original description by Walsh (supra) is a combined generic 

 and specific one. As I have recorded many of Melichar's species 

 I give his impression of the genus. 



" Tegmina with two terminal veins of which the inner one is 

 simple and the outer one forked and forming a short triangular 

 cell ; in the wings the two front sectors are joined into a fork, 

 the stalk of Avhich runs into the peripheral vein, the appendage is 

 absent, the third simple sector connected with the inner forked 

 branch by a transverse vein." (Melichar.) 



Much diiference of view is evinced by various workers as regards 

 this genus. Oshanin, and doubtless with good reason, keeps Chlorita 

 separate from Empoasca with which he includes Kyhos. Van Duzee 

 uses Kybos as distinct with which he includes Chlorita; Puton and 

 Edwards regard both Kyhos and Chlorita as distinct genera ; 

 Gillette includes both Chlorita and Ki/hos with Empoasca. 

 Sahlberg (Not. Paun. Plor. Penn. Porh. (2) ix, p. 158 (1871)) 

 places Cicadula in the Typhlocybinae, substituting it for Pieber's 

 genus Kyhos. Woodworth (Psyche, v, p. 76 (1888)) and Van Duzee 

 (torn. cit. vi, p. 305, (1902)) condemn this as an unwarranted 

 proceding, but Kirkaldy, an inconoclast in nomenclature, writes 

 " Cicadula, therefore, as Sahlberg states, replaces Kyhos, Pieb." 

 (Eep. Exp. Stat. Haw. Plant. Assoc, pt. ix, p. 357 (1906)). Under 

 these difficulties I have followed the synthetic method, for my 

 material is scanty. 



