DUNDUBIARIA. 87 



curved obconical black spots and two more obsolete black oblique 

 spots on each lateral area between the incisures, but not extending 

 to the posterior margin ; mesouotum with a large pale greenish 

 discal spot, its base truncate and resting on the cruciform eleva- 

 tion, anteriorly divided into three angular prolongations which 

 about reach the anterior margin ; lateral areas of the sternum 

 somewhat pale greenish. Tegmiua and wings hyaline, bases of 

 both brownish oehrac?ous ; the tegmina with the costal membrane 

 and area, the basal cell, the greater part of the venation, and the 

 margins of the transverse veins at bases of second and third apical 

 areas brownish ochraceous. 



Lengtli of head about half the width between eyes, and 

 including eyes considerably broader than base of mesonotum ; 

 rostrum passing the intermediate coxas ; body beneath finely 

 pilose ; anterior femora armed with two long spines beneath. 



Length excl. tegm., $ , 31 ; exp. tegm. 102 millim. 



Hah. Ceylon {Green). — Sumbawa Island (Paris Mtis.). 



Division DUNDUBIARIA. 

 Dundubiaria, Dist. A. M. N. H. (7) xv, p. 58 (1905). 



Lateral margins of the pronotum distinctly angulated or 

 toothed ; tegmina and wings hyaline, sometimes spotted, but 

 never opaque ; opercula in male varying very much in length and 

 shape, and in some genera reaching tlie maximum of development. 



This division is a very homogeneous one, but, at the same time, 

 one of the most difficult to analyze genei"ically. It is composed 

 almost entirely of Oriental, Malayan, and Australasian species, 

 though a few are derived from the extreme east of the Palsearctic 

 Kegion, which, as is well known, possesses strong Oriental affinities. 



Synopsis of Genera. 



I. Second and third ventral segments in male with 



distinct lateral tubercles ; opercula short. 



A. Head (including eyes) considerably narrower [p. 89. 



than base of mesonotum LT'.rTOPSALTiiiA, 



B. Head (including eyes) as wide as base of meso- 



notum ; head as long as space betAveeu eyes. Pukana, p. 91. 



II. Ventral segments without tubercles ; opercula 



short, or sometimes very long, and very variable 

 in shape. 



C. Front of head large and convex, about twice 



as broad at its base as the length of the 

 anterior margins of the lobes of vertex ; 

 rostrum scarcely reaching the posterior coxse. Dundubia, p. 94. 



D. Front of head not twice as broad at base as 



length of anterior margins of the lobes of 

 vertex ; rostrum reaching, sometimes passing, 

 the posterior coxae. 



