42 Notes on Insects Damaging Sugar Cane in Queensland. 



(53) CACACHROA DECORTICATA. Macl. (Family CETONIIDAE.) 

 Plate IV., Fig. 53. p. 34. 



Eesponsiblo for minor damage to cane. 



Description of Beetle. 



Uniform shining l)lack, coarsely punctate and marked in most 

 specimens with irregular cream-coloured blotches of variable size ar- 

 ranged in the following order, viz. — two large ones on eljrtra, one on 

 each side of prothorax, two on pygidium, one on the sides of each 

 adbominal segment against edges of elytra, and one on each side of 

 metathorax close to root of elytron. Length very variable, from 12 to 

 16 mm. (average size about ^V of an inch). (See Bull. No. 2 of this 

 Bureau, page 43, for data respecting its life-cycle.) 



In addition to the above-mentioned Scarabaeidae, at least four 

 species of small Melolonthidae are known to habitually occur among 

 cane roots at Gordonvale, but at present do not cause appreciable injuries. 



One of these is a little beetle named EphoJcis hilohiceps (plate IV., 

 fig. 56), Fair., and the others have been referred provisionally to the 

 genera Heteronyx and Haplonycha (plates IV., fig. 57, 54; and III., 

 fig. 55). 



