308 Timehri. 



25. Dyscinetus bidentatus, Burm. 



Common name : The small black hardback. 



Injury : Adult beetle bores into young shoots near the base and 

 kills the " heart." Larvae feed underground at the stools.* 



2G. Cyclocephala signata, Drury. 



Common name : The brown hardback. 

 Injury : As the small black hardback. 



27. Phileurus bajulus, Perty. 



28. Strategus alceus, Fabr. 



Injury : Larvae of 27 and 28 feed underground in or about cane- 

 stools. 



29. Rhyncophorus palmarum, Linn. 



Common name : The palm weevil or gru-gru worm. 

 Injury : Larva infests cane-stools. 



30. Metamasius hemipterus, Linn. 



Common name : The lady-bird weevil borer. 



Injury : Larva follows mechanical injury, or injury by other insects, 

 or by rats, or follows rind fungus. Infests growing cane and 

 plant- tops. 



Natural enemies : 



Larva parasitized by a Braconid, probably an Iphiaulax. 

 Adult beetle preyed on by Mallophora calidus, one of the hawk- 

 flies (Asilidae). and by the Argiopid spider Argiope argentata, 

 Fabr. 



31. Myochrous armatus, Baly. 



Injury : Larva attacks tender leaves generally found in throat of 

 young shoots. 



COCCIDJE. 



32. Aspidiotus sacchari, Ckll. 



Common name : The root-scale or sugar-cane Aspidiotus. 



Injury : Feeds generally underground on stools and roots, often 

 forming very thick incrustations ; often found, too, on the cane- 

 stalks, 



Natural enemies : 



A small hymenopterous parasite, undetermined. 



* I have just discovered that the hardback larva; are parasitized by the larva of a 

 small black wasp, of the family Scbliidse. 



