1) U N D U B 1 A R I A. 



Division D UNI) UBIARIA . 



Bwidubiaria, Dist. Ann. Mag. Nat. Hist. (7) xv. p. 58 (1905) ; 

 id. Faun. B. I., Rhynch. iii. p. 87 (190(5). 



Synopsis of Genera. 



I. Second and third ventral segments in cj" with distinct 

 lateral tubercles ; opercula short. 



A. Head (including eyes) considerably narrower than 



base of mesonotuni Leptopsalfria. 



B. Head (including eyes) as wide as base of mesonotuni. 

 a. Head ns long as space between eyes. 



b. Tympanal coverings in J broader at base than 

 long. 

 c. Abdomen moderately conical, gradually attenu- 

 ated posteriorly, in ^ considerably longer 

 than space between apex of head and base of 



cruciform elevation I'urann, 



an. Head as long or a little longer than space between 

 eyes. 

 bh. Tympanal coverings in J as long as breadtli at 

 base, or sometimes broader than long. 

 cc. Abdomen broad, about as broad at apex as at 

 base ; in ^T not longer tlum space between 

 apex of liead and l)ase of cruciform elevation . Muua. 

 n. Second ventral segmeut in S alone provided Avith 



lateral tubercles ; opercula short Tamia. 



IH. Ventral segments without tubercles ; opercula short or 

 sometimes very long, and very variable in shape. 



C. Head with the front large and convex, about twice as 



broad at its base as the length of anterior margins of 

 the lobes of vertex ; rostrum scarcely reaching the 



posterior coxae Dundubia. 



I). Head with the front not twice as broad at base as 

 length of anterior margins of the lobes of vertex ; 

 rostrum reaching, sometimes passing, the posterior 

 coxa3 ; opercula long, at least reaching centre, and 

 sometimes apex, of abdomen. 

 d. Abdomen short, about as long as space between apex 

 of head and base of cruciform elevation. 

 e. Head as long as breadth between eyes. 

 f. Lateral margins uf head obliquely continuous to 

 front or very slightly sinuate. 

 //. Head (including eyes) as wade as base of 

 mesonotum. 

 /(. Opercula in c? broad, either just or longly 

 passing middle of abdomen, well sepa- 

 rated, and not overlapping, more or less 

 concavely sinuate on each side at basal 

 area, their apices rounded or obliquely 

 truncate. 

 i'. Greatest breadth of tegmina about a third 



of length Co.<imopsnltrui. 



