﻿375 

 I. borcalis Goding. 



D. borealis Goding op. c. 9, pi. i, f. 21 (tegmen). 



Hab: Queensland, Cairns (viii), Nelson (viii), Kuranda (viii) 

 arboreal. 



The venation is variable, even in the tegmina of the same in- 

 dividtval; the third subapical cell is sometimes divided, and 

 there may be also two or more small supplementary cells. 



Sextius Stal. 



Sextius Stal 1866 Hem. Afr. IV, 88. 



A genus of 'greenish forms, with the apical parts of the teg- 

 mina reticulate. The males are as a rule smaller, and the pro- 

 notal horns less developed. All the species are 'Eucalyptus- 

 feeders. 



The following species are all. I think, good, but difBcult to 

 define verbally. The following key mav helD to their identifica- 

 tion: 



r. No basal cross vein (sec. Goding) depresses Goding. 



I a. A 'basal cross vein 2. 



2. Pronotum more or less swollen near the anterior mar- 

 gin kurandac, sp. nov. 



(2a). Pronotum anteriorly practically flat medianly 3. 



(3). Posterior process extending beyond tegmina 



loiigiiwfum sp. nov. 



(3a). Posterior process not extending- as far as apex of teg- 

 mina hipiinctata (Fabr). 



(4a). Tegmina immaculate 5- 



(5). Horns fee'bly developed bipiiucfaia vars. 



(5a). Horns well developed 6. 



(6). Horns and pronotum between them dark, oronotum 

 anteriorly pale, tegmina sparsely marked with black. . 



assiiiiilis sp. nov. 



(6a.). Horns and pronotum anterioily dark, tegmina imma- 

 culate vircscens (Fairm.) 



N. B. Sextius vircscens Ruckton 228, Pl. 31, f. 3, is impos- 

 sible to determine, being pro'bablv a mixed species. 



I. depressus Goding. 



S. depressus Godin'g 12, PI. i. f. 24 (nymph). 



Recorded from Queensland, West Australia, and several local- 



