Notes on Insects Damaging Sugar Cane in Queensland. 31 



nervures light yellow ; cubital vein twice forked, the second fork very 

 small, situated at end of branch close to apical margin and occasionally 

 absent. Wing expanse, 4-85 mm. Length of body, 1-60 mm. Occurring 

 on sugar-cane leaves at Pyramid during September, 1914. 



(36) BUD APHIDID. (Family APHIDIDAE). 

 Plate IV., Fig. 36 and v., p. 34. 



A large globular dull yellow aphid was noticed on several occasions 

 during late Winter and early Spring months clustered in small colonies 

 at the bases of cane shoots or on the swelling buds of " sets " planted 

 about 4 inches deep. It was invariably attended by ants and sometimes 

 associated with " mealy bugs " (Pseudococcus sp.). Winged forms were 

 unobtainable, and no specimens were observed on young stems or foliage 

 above ground. This insect is probably new to science, no subterranean 

 species of similar habit having, I believe, been hitherto recorded as 

 affecting cane. 



Description of Larva. 



Elongate, hairy, pale orange-yellow slightly darker on dorsal margins 

 of body. Rostrum reaching nearly to end of abdomen. Antennte short, 

 stoutish, 4-jointed, 4th joint longer than remainder taken together. 

 Extremity of rostrum, tarsi, and antenna blackish. Legs short, stout. 

 Length of body, 0-65 mm. 



Description of Viviparous Female. 



Rotund, nearly spherical viewed from above, hairy, dull orange 

 colour, dusted with white pow^dery secretion. Abdomen much wider 

 than thorax with dorsal marginal edges depressed, tail conspicuous, and 

 obtusely conical. Head small, eyes nearly obsolete, consisting of about 

 four dark red ocelli. Rostrum not reaching beyond posterior coxjb. 

 Antennae and legs short, stout ; the former not reaching to metathorax, 

 4-jointed {see Plate IV., Fiv. V.), 4th joint slightly longer than 2nd 

 and 3rd taken together, 3rd joint clavate. Length of body, 1-40 mm. 



(37) ALEURODES BERGHI, Sign. (Family ALEURODIDAE). 



Plate IV., Fig. 38, p. 34. 



This insect was first noticed by the author last November, and the 

 following June (1915) many adult females were observed busily engaged 

 in laying eggs on the foliage of sugar-cane growing at the Experimental 

 Laboratory. Later, during October, part of a field of young plant cane 

 near Gordonvale was very noticeably infested, and slightly damaged 

 by this pest. Winged forms of both sexes were present as well as 



