4 HOMOPTEKA 



7. T. cerisyi. Egypt. 



Cicada cerisyi, Guerin, Icon. Regne Anim., Ins. p. 356 (1829-1838). 

 Tettigia cerisyi, Karsch, Berl. Ent. Zeitschr. Vol. 35, p. 108 (1890). 



8. T . punctipes. Madagascar. 



Cicada punctipes, Signoret, Ann. Soc. Ent. Fr. (3), Vol. 8, p. 180 (i860). 

 Tettigia punctipes, Stal, Hem. Afr. Vol. 4, p. 25 (1866) ; Karsch, Berl. Ent. 

 Zeitschr. Vol. 35, p. 108 (1890). 



52. Genus ONOMACRITUS, Distant 



O nomacritus. Distant, Ann. Mag. Nat. Hist. (8), Vol. g, p. 461 (1912). 



Characters. — Head transverse, much shorter than the breadth between eyes, eyes laige and 

 upwardly prominent, as seen beneath distinctly exserted, lateral margins of vertex and front almost 

 continuous; face broad, narrowing to clypeus, an obscure central tubercle near anterior margin, clypeus 

 strongly centrally ridged, only a little shorter than face; pronotum considerably longer than head, a 

 little shorter than mesonotum, the lateral margins a little ampliate, concavely sinuate before the lateral 

 angles, which are roundly prominent and a little upturned, slightly and obscurely angulate before the 

 concave sinuation; abdomen much longer than space between apex of head and base of cruciform 

 elevation, tympanal coverings narrower but scarcely shorter than tympanal cavities; rostrum passing 

 the base of abdomen; opercula in male small and transverse, widely separated internally; tegmina 

 elongate, narrow, more than three times as long as broad; wings only half as long as tegmina, but 

 nearly as broad, six apical areas, their basal margins almost at right angles with each other. 



Type. — O. sumatranus, Distant. 



Geographical distribution of species. — Sumatra. 



1. O. sumatranus. — PI. I , Figs. 2a, b. Sumatra. 



Onomacritus sumatranus, Distant, Ann. Mag. Nat. Hist. (8), Vol. 9, p. 461 



(1912). 



53. Genus TAMASA. Distant 



Tamasa. Distant, Ann. Mag. Nat. Hist. (7), Vol. i5, p. 386 (igo5). 



Characters. — Body moderately short, abdomen not longer than space between apex of head 

 and base of cruciform elevation ; tympanal coverings both narrower and shorter than tympanal cavities; 

 head shorter than pronotum, which is slightly shorter than mesonotum. 



A genus intermediate between Tettigia and Terpnosia. From Tettigia it is separable by the struc- 

 ture of the tympanal coverings, which are both narrower and shorter than tympanal cavities, and by 

 the short abdomen ; from Terpnosia it also differs by the short and opaque abdomen, the greater width of 

 the head between eyes = to width of base of mesonotum, and by the tympanal coverings being suban 

 gulate anterioilv. 



Type. — T. tiisligma, (ieimar. 



Geographical distribution of species. — Australia. 



1. T. tustigma. — PI. I , Figs. 3a, b. Australia. 



Cicada tristigma, Germar, in Silb. Rev. Ent. Vol. 2, p. 69 (1834) 

 Tettigia tristigma, Sta.1, Ann. Soc. Ent.Fr. (1861). p. 617 ; Coding & Froggatt, 

 Proc. Linn. Soc. N. S. Wales (1904 1, p. 594. 



