30 Notes on Insects Damaging Sugar Cane in Queensland. 



dorsal area, the three central bars usually of about equal length, broader, 

 and closer together than the others. Sides of basal portion of abdomen 

 with from three to five light brown spots. Nectaries small, slightly 

 swollen centrally, base and mouth about same width, the latter distinctly 

 rimmed. Legs pale yellow, mid and hind femora light brown, tarsi and 

 distal ends of tibia^ black. Antenna; about two-thirds as long as body; 

 5th segment slightly longer than 4th ; 3rd longer than 5th, but much 

 shorter than 7th. Wing venation normal, nervures black, strongly 

 shaded. Length, 1-10 mm. Wing expanse, 4-15 mm. 



(34) APHIS ADUSTA, Zehn. (Family APHIDIDAE). 



Recorded by Tryon in 1905 as affecting Badila cane at Bingera. 

 This species has long been recognised as a cane pest in Java. 



(35) APHIS, sp. (Family APHIDIDAE). 

 Plate IV., Fig. 35, p. 34. 



Larva. 



Rather slender bodied ; pale green suffused with bluish-grey on head 

 and prothorax. Eyes and nectaries dark red, the latter arising from the 

 centre of a light bluish-brown blotch ; antennae about one-third length 

 of body ; rostrum reaching as far as intermediate coxfe, reddish on basal 

 portion. Legs and 6th and 7th antenna! joints light brown. Length, 

 0-70 nun. 



Nymph . 



Light green, somewhat whitish in parts. Head and prothorax 

 purplish-brown, the latter with two dark brown dorsal blotches. Nec- 

 taries dark red surrounded by a light brown blotch. Rostrum reaching 

 midway between anterior and intermediate coxa?, base reddish, point 

 black. Eyes red ; antenna? light yellow, less than half length of body ; 

 6th and 7th joints brown, 1st considerably longer than 2nd ; 3rd about 

 length of 7th. Wing pads and tail brown, the latter short, triangular, 

 obtuse. Legs brown except on anterior femora and basal i^ortions of 

 hind and intermediate femora and tibia\ Length, 1-80 mm. 



Whige d Viviparous — Fc ma Ic . 

 Head and thorax dark greenish-brown ; abdomen uniform pale green. 

 Antennie brown, imbricated, less than two-thirds length of body ; 3rd 

 joint longer than 7th, with twenty-two sensoria ; 4th, 5th, and 6th joints 

 about equal length, 4th with five, 5th with three sensoria. {See Plate 

 IV., Fig. 35-x.). Rostrum not reaching to intermediate coxa\ Nectaries 

 dark brown, slightly swollen in middle, mouth distinctly riniined. Tail 

 long, conical, tip white and woolly looking. Legs dull yellow, hairy, 

 with tarsi and distal half of femora and tibia' greenish-brown. Wing 



