140 



Delphax saccharwora Westwood, op. cit. 409. figs. 54a and c 

 [incorrect I ; and 1834 op. cit.. \'II 496 and 610; Ballon 1905 \V. 

 1. Bull., \'I. 41 . 



Stenocraiiiis ( ?) saccliariz'orus \'an Duzee 1897 Bull., Bufifalo 

 Soc, V, 232 and 1907 op. cit. 



5". saccharivora Kirkaldy 1906 Bull. Ent. H. S. V. A., I, 40). 



This species was originally confused with an Aphis (probably 

 .1. sacchari Zehntn., but I have not seen specimens). 



It is easily recognized by its immaculate pale green colour; 

 spur-spines, &c., black spur with 18-20 spines. 



The nymphs differ but little from the adult, excepting the 

 usual manner, and have 2 parallel keels on the frons, close to- 

 gether and not uniting. 



Hadeodelphax. 



There are at least two Australasian species : 

 I Head in profile extending almost ov quite the length of the 



eye in front of the latter i pinto 



la Head in profile scarcely as much as half of the length of the 

 eye, in front of the latter 2 pcrscplioiic 



I. pliito. 

 PI. XVH. fig. 12. 



Macropterous form : the posterior angle of the scutellum is 

 white, and the median keel of the pronotum is sometimes pale. 



Male : pygophor sinuately rounded viewed from the end. The 

 genital styles are recurved and broadly bifid at their ends. 



Length (brach. ) 3^2, (macr.) 4^^ mill. 



Hab. Queensland, Cairns, (July-Aug., P.)- Lucinda Point 

 (July, P.); Fiji, (Feb., K.), Xavua (Feb., M.)- Ba (Jan., M.). 

 Rewa (Apr. and Dec, M.). 



var. pallidior nov. 



I hesitate to describe this as a species, as I have seen only 

 females, and H. pluto is certainly subject to natural decoloration. 



Macropterous form: Testaceous, frons piceous brown, more 

 or less paler laterally; pronotum obscurely marked with pale 

 brown and scutellum with an obscure longitudinal stripe on each 



