:\[ A C R T R I S T R I A. 



31 



cc. ILyes circular, as long as broad, moderately ex- 



serted upwardly Antankaria. 



acia. Head (includiiii^ eyes) little more than two-thirds 



the breadth of base of mesonotum Cacama. 



C. Length of head not half the breadth of space 



between eyes. 



aaaa. Head (including eyes) very much broader than 



base of mesonotuiu ; space between eyes almost 



equalling breadtli at base of niesdiidtum : in front 



of eyes obliquely inclined, but not truncate .... Oria. 



H. jNIetasternum elevated at middle and furnished with a 



posterior process directed backwards Cri/pfofj/inpaiia. 



Genus 22. Macrotristria. 



Macrotristria, Stal, Ofv. Vet.-Ak. Forh. 1870, p. 714, note ; 

 Dist. Ann. Mag. Nat. Hist. (7) xiv. p. 321) (11104) ; id. loc. 

 cit. p. 425. 



Ty])e. M. ((ii(jiilarii!, Germ. 



A. Body above black, head and thorax spotted with ochraceous ; tegmina 



with the veins strongly infuscate. 



M. augnlaris. Australia. 



("icada (HHpiIdris, Germ, in Silb. Rev. Ent. ii. 



]). 68 (1834) ; Stal. Enoenies Resa, p. 201) 



(1858) : God. & Frogg. Proc. Linn. Soc. 



N. S. Wales, 1904. p. 580. 

 Fidicina annularis, Wall-. Li>t Honi. i. p. 78 



(1850) . ' 

 Macrotristria aiundaris., Stal. 0£v. 'Yet.-Ak. 



Forh. 1870, p."714, note. 

 Macrouistria angxdaris.. Froqq. Agr. Gaz. N. S. 



Wales, xiv. p. 418, f. 1 (11)03) ; Misc. Fubl. 



no. 643. p. 8, t. ii. f. 1 (11)03). 



B. Head and thorax above varying from brownish-ochraceous to virescent. 

 a. Tegmina with the transverse veins at bases of upper apical areas dis- 

 tinctly infuscate. 



M. nigronervosa. Queensland. 



Macrotrifttria niqronervosa, Dist. Ann. Mag. Nat. 

 Hist. (7) xiv". p. 321) (1904). 



(ifi. Tegmina with the transverse veins at bases of upper apical areas not 

 or indistinctly infuscate. 



M. sylvara. 



Cicada sylvara, Dist. Trans. Ent. Soc. Lond. 



1901, p. 591, t. xvi. £. 1, a, b. 

 Cicada sylvana, God. 6f Froqg. Proc. Linn. Soc. 



N. S. 'Wales, 1904, p. 5^0. 



Queensland. 



