HEMIPTEEA— CICADELLIDAE (JASSIDAE). 



169 



Pale green, stramineous, unmarked. Length, 5 mm. ; width of pronotum 

 at base, 1*75 mm. 



One specimen : female (holotype) from Tutuila, 900-1,200 ft., centre of 

 island, 6-30-1918, Kellers. 



This species is proportionately broader than related forms and the broad 

 face and comparatively short elytra and lack of colour markings serve as 

 differential characters. 



7. Bythoscopus hyalinus, n. sp. (Text-fig. 5). 



Head distinctly narrower than pronotum, rather prominently rounded, 

 vertex with parallel borders ; 

 face broad ; clypeus slightly 

 narrowing to rounded tip ; 

 lorae broad, approaching 

 border of cheek ; pronotum 

 nearly four times as long as 

 vertex, over twice as broad 

 as long, concave behind ; 

 elytra but little longer than 

 abdomen, costa strongly 

 curved. Female, last ventral 

 segment quite deeply con- 

 cave, as long as preceding 

 segment; pygofer long, 

 scarcely extending to tip of 

 ovipositor. 



Pale green without 

 marking. Length, 6-5 mm. 



One specimen, female 

 (holotype) from Tutuila, 

 1,200 ft., 7-21-1918, Kellers. 



The larger size, pale translucent colour and the strongly curved elytra 

 appear sufficient to separate this from chloro'phana, to which it seems related. 



Text-fig. 5.- 



Bythoscopus hyalinus, n. sp. : a, dorsal view ; 

 b, face ; c, female genitalia. 



