II o m optera of Lido- Clt ina. 197 



Vagitanus, gen. nov. 



Head (including eyes) wider than base of mesonotura, 

 about as long as breadth between eyes and as long as pro- 

 notum ; proiiotum much shorter than mesonotum, its lateral 

 margins more or less oblique, straight, its posterior lateral 

 angles a little ampliated ; mesonotum convex ; abdomen 

 in male almost as long as space between apex of head and 

 base of cruciform elevation ; tympanal coverings both nar- 

 rower and shorter than tympanal orifices ; opercula in male 

 moderately short and oblique, not extending beyond the 

 base of abdomen; anterior femora spined beneath ; tegmina 

 and wings hyaline, the first with its greatest breadth more 

 than a third of its length, apical areas eight ; wings with 

 six apical areas. 



Allied to Cicadatra, but differing by the relative breadths 

 of the head including eyes and the base of lnesonotum, &c. 



Vagitanus vientianensis, sp. n. 



$ . Head above ochraceous, ocelli margined with black; 

 head beneath and face virescent ; eyes brownish, spotted 

 or mottled with black ; pronotum castaneous, the central 

 anterior margiu and the broad posterior margin virescent ; 

 mesonotum brownish ochraceous with four obconical black 

 spots, the two central spots smallest, the two lateral spots 

 longest and almost crossing the mesonotum, a small rounded 

 black spot before each anterior angle of the basal cruciform 

 elevation, which is virescent with the anterior angles black ; 

 abdomen above and beneath ochraceous, above centrally 

 piceous on basal half, beneath with a central black spot 

 near base ; sternum, opercula, and legs virescent ; tegmina 

 hyaline, venation on basal area castaneous, other veins 

 black, costal membrane virescent, postcostal membrane 

 brownish ochraceous ; apical margin — from apex to com- 

 mencement of seventh apical area — broadly fuscous ; wings 

 hyaline, venation either fuscous or virescent; opercula 

 in $ obliquely directed inwardly, not meeting centrallv, 

 their apices rounded and not passing base of abdomen. 



Long., excl. tegm., $ , 17; exp. tegm. 49 mm. 



Hub. Laos; Vientiane (R. Vitalis de Salvaza). 



Vagitanus luangensis, sp. n. 



? . Body above dark brownish ochraceous ; front of head 

 with the anterior and frontal margin black ; pronotum paler 



