576 M0N0(3KAPH OF THE AUSTEALIAN CICADID^E, 



ferruginous, a black transverse band on dorsum of each segment, 

 near base and laterally covered with golden pubescence, elsewhere 

 silvery; sound organs developed in large tawny, white tomentose 

 covered sacs, covering nearly one-half the sides of abdomen. 

 Body below tawny, abdomen shining black, a spot on each side of 

 basal segment, and apical segment excepting narrow basal border, 

 sordid yellow, densely clothed with tomentum, that along middle 

 golden, elsewhere silvery; opercula small, sordid pale yellow. 

 The two anterior pairs of legs piceous marked with tawn}'; hind 

 pair paler. Chest mottled with fuscous. Long. corp. 35-38 mm.; 

 -exp. teg. 112-115 mm. 



Hah. — Port Jackson (Gu^rin). 



This species appeared in considerable numbers in the vicinity 

 of Sydney in the 1902-3 season. Though described by Guerin so 

 many years ago, it was until then very rare in Museum collections 

 and has a very restricted range. 



The beautiful large snow-white sacs of the male make this a 

 Tery conspicuous insect. 



It is rather remarkable that when opening out some nests of 

 digger wasps {Priocnemis bicolor) at Mosman Bay, where they 

 were storing their galleries with cicadas, it was found that the 

 moribund insects were nearly all of this species, though many 

 others were numerous. 



*Henicopsaltria interclusa. Walk. 



1851. Thojjha (New sp.), List Hom. Brit. Mus. pi. 1, fig. 6. 

 1858. Thopha id., List Hom. Brit. Mus. Suppl. p. 5. 



Testaceous, partly green. Head green, with a broad band 

 extending between inner borders of e3''es across vertex, base of 

 front and two diverging stripes including region of posterior 

 ocelli, black; a central basal spot, and basal border of front, 

 yellow; front ferruginous, a median yellow stripe bordered with 

 fuscous; rostrum testaceous, tip, a median line, piceous, reaching 

 hind coxae. Pronotum ferruginous, with a median yellow stripe 

 bordered with black stripes on each side which extend along front 

 border; furrows black; a yellow spot on each side near front 



