300 :Mr. W. L. Distant on Homoptera. 



tliii'd abdominal segment ; rostrum reacliing tlie posterior 

 coxjb; face globose, obsoletely longitudinally snlcate and 

 more broadly transversely striate; head (including eyes) 

 much narro^ver than eitlier anterior margin of pronotum or 

 base of mesonotum ; tegmina with the transverse veins at the 

 bases of the numerous apical areas margined with pale 

 ochraceous. 



Long., excl. tegm., 41 mm. ; exp. tegm. 128 mm. 



Hab. " Fronti^re Chine — Tonkin — Region Lao-Kay " 

 {Duponty Paris Mus.). 



Genus POLYNEURA. 

 Polyneitra, Westw. Arcan. Entom. i. p. 92 (1842). 

 Type, P. ducalis, Westw. 



Division T A C U A E I A. 



Lateral margins of the pronotum convex, but not angu- 

 larly produced, sometimes simply moderately convex or 

 anteriorly snbampliated and somewhat toothed ; tegmina and 

 wings more or less opaquely coloured. 



Synopsis of Genera. 



A. Lateral margins of the pronotum somewhat convex, 



but even. 



a. Head (includino' eyes) equal in width to that 



between anterior lateral angles of pronotum. . . . Tacua. 



h. Head (including eyes) narrower than width be- 

 tween anterior lateral angles of pronotum Graptopsaltria. 



B. Lateral margins of the pronotum anteriorly sub- 



ampliated and somewhat toothed Tosena, 



Genus Tacua. 



Tacua, Amy. & Serv. Hist. He'm. p. 461 (1843). 

 Type, T. sjyeciosay Illig. {Tettigonia). 



Genus Graptopsaltria. 



Grajitopsaltria, Stal, Ilem. Afr. iv. p. 3 (1866). 

 Type, G. colorata^ Stal. 



Genus Tosena. 



Tosena, Amy. & Serv. Hist. Hem. p. 462 (1843). 

 Type, T. fasciata, Fabr. {Tettigoni(i). 



