FAM. CICADIBM 3 7 



t 



Type. — H. aliena, Jacobi. 



Geographical distribution of species. — At present only known from the Salomon Islands, 

 i. H. aliena. — PI. 5, Figs. 30a, b, c. Salomon Islands. 



Hetiropsaltria aliena, Jacobi, Sitzber. Ges. Naturf. Berl. (1902), p. 76 (f. p. 73). 



Division DUNDUBIARIA 



Dundubiaria. Distant, Ann. Mag. Nat. Hist. (7), Vol. i5, p. 58 (iao5). 



Characters. — Lateral margins of the pronotum distinctly angulated or toothed; tegmina and 

 wings hyaline, sometimes spotted, but never opaque; the opercula vary much in length and shape and 

 in some genera reach the maximum of development. 



This division is a very homogeneous one, but at the same time one of the most difficult to readily 

 analyze. It is composed almost entirely of Oriental, Malayan, and Australian species, save a few derived 

 from the extreme east of the Palagarctic Region, which, as well known, possesses a strong Oriental 

 affinity. 



SYNOPSIS OF GENERA 



I. Second and third ventral segments in q? with distinct lateral tubercles; opercula 

 short. 



A. Head (including eyes) considerably narrower than base of mesonotum . . 1. Genus Leptopsaltria. 



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



a. Head as long as space between eyes. 



b. Tympanal coverings in q? broader at base than long. 



c Abdomen moderately conical, gradually attenuated posteriorly, in q* 

 considerably longer than space between apex of head and base of 



cruciform elevation .- 2. Genus Purana. 



a'. Head as long or a little longer than space between eyes, 

 b' . Tympanal coverings, in (f as long as breadth at base, or some- 

 times broader than long, 

 c' . Abdomen broad, about as broad at apex as at base; in q* not 

 longer than space between apex of head and base of cruciform 



elevation 3. Genus Maua. 



II. Second ventral segment in tf alone provided with lateral tubercles; opercula 



short 4. Genus Tanna. 



III. 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 coxa 5. Genus Dundubia. 



D. 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 

 coxa ; 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. 



