On two new Species of Acrgea from Mombasa. 167 



base ; basal cell about twice as long as broad. Wings with 

 the outer margin deeply sinuate near abdominal area ; apical 

 areas six, in some specimens broken up by transverse veins 

 into a more numerous and reticulated series. 



This diagnosis is founded on two female specimens, the 

 structure of the abdomen implying that the tympana are 

 uncovered in the male, thus locating the genus in my sub- 

 family Tibicenirife. Talainga is allied to Gwana, from which 

 it is at once distinguished by the reticulated tegmina &c. 



Talainga Binghami, n. sp. 



$ . Body and legs black ; eyes ochraceous, their posterior 

 margins pale sanguineous ; pronotum with the lateral margins 

 and a curved spot on lateral areas behind eyes pale san- 

 guineous, posterior margin — excepting extreme centre — nar- 

 rowly ochraceous. Abdomen above with the marginal seg- 

 ments more or less greyishly pilose. 



Tegmina talc-like, semiopaque, very pale ochraceous, the 

 venation black and margined with the same colour, the apical 

 area being thus composed of numerous small, black-mar- 

 gined, cellular areas ; the costal membrane ochraceous, the 

 basal cell shaded with black. Wings pale bluish green, the 

 venation more or less concolorous, excepting that deliminating 

 the more or less reticulated apical areas ; posterior margin 

 blackish from apex to the sinuation near abdominal area. 



Long. excl. tegm., $ 23-26 millim., exp. tegm. 70-77 

 millim. 



Hah. Burma, Kr. Hills (Bingham). 



This beautiful genus is a great acquisition to our knowledge 

 of the Eastern Cicadida?. The type of coloration distinctly 

 resembles that of Tosena splendida, Dist., which is also found 

 in Burma, a country that has produced some of the hand- 

 somest insects of the whole family, and is still likely to con- 

 tain many Cicadean novelties. 



Talainga Binghami will be subsequently figured in my 

 1 Monograph of Oriental Cicadidge.' 



XX11. — Descriptions of two new Species of Acrsea from 

 Mombasa. By H. Gkose Smith. 



Acraa crystallina. 



Male. — Upperside. Both wings devoid of scales except at 

 the apex of anterior wings, where they are narrowly brownish 



