594 MONOGRAPH OF THE AUSTRALIAN CICADIDM, 



*Tettigia tristigma, Germ. 



1834. Cicada id., Silb. Rev. Ent. ii. p. 67. 



1850. Cicada id., Walk., List Horn. Brit. Miis. p. 162. 



1851. Cicada id.. Walk., List Horn. Brit. Mus. pi. i., fig. 5. 

 1861. Tettigia id., Stal, Ann. Soc. Ent France, p. 617. 



Head obtuse, yellow, not iiarrower than middle of pronotum, 

 vertex on each side in front of middle with two small oblique 

 stripes, cheeks and a line on clypeus black; ocelli ringed with 

 black ; rostrum testaceous, tip ferruginous, reaching anterior 

 apical angles of opercula. Pronotum yellow, lateral borders 

 diverging backward and lightly sinuate at middle, median stripe 

 and two obsolete spots black; hind border paler. Jlesonotum 

 ochraceous, with four obconical black spots, the outer pair longer 

 and narrow, a spot in front and one on each side of cruciform 

 elevation, black. Tegmina vitreous, passing tip of abdomen by 

 half their length, venation testaceous, the first and second anas- 

 tomoses and tip of first apical area infuscated; interior ulnar area 

 with apex not or very little broader than base. Wings vitreous, 

 venation pale tawny. Abdomen ochraceous, a transverse fuscous 

 band on some of segments, interrupted in middle. Body tawny, 

 opercula very pale, short ; abdomen yellow, a fuscous stripe 

 through the middle; in female, a fuscous spot on each side of 

 anal appendage, and a small spot on its dorsum. Legs tawny. 

 Long. corp. 19 mm.; exp. teg. 61 mm. 



Hah. — Australia (Germar); New Holland (Walker); Northern 

 Territory, S.A., collected by J. G. Tepper. 



*Tettigia variegata, sp.no v. 



(Plate xviii., figs. 9-9a.) 



Head reddish-fuscous, a black spot occupied by ocelli, a yellow 

 band on each side of head and a similar coloured spot on base of 

 front; front convex, pale reddish-fuscous with a dark stripe along 

 middle, and sides of face yellow and densely hairy; rostrum ferru- 

 ginous, passing hind coxiv. Pronotum with the front somewhat 

 narrower than head, yellow, an hourglass-shaped central stripe 



