SUGAR-CANE INSECTS. 199 



Apogonia destructor Rilsema Bos. 

 (Javan Sugar-Cane Grub Beetle. Scarabseidse; Coleoptera.) 



Hosts: Sugar cane, grasses, and various plants. 



Injury: Destructive in Java. Attacks the roots. 



Description and biology: Adult about 0.5 inch long, greenish black, of the general 

 •form of a June beetle. Pupa wliite, broad in front, tapering behind, with all appen- 

 dages beneath. Larva white, usually in a curved position, with large yellow head 

 and long legs. Lives at roots of plants, causing much damage. 



Distribution: Java. 



Van Deventer, W. Handboek voor de Suikerriet-cultuur Java, 190G, vol. 2, pp. 



282-287, plate 4. 



Apogonia rltsernaj Sharp. 



(Javan Sugar-Cane Grub Beetle. Scarabseidae; Coleoptera.) 



Hosts: Sugar cane, and other plants. 



Injury: Destructive to the roots. 



Description and biology: Adult reddish brown to blue-black. Somewhat smaller 

 than A. destructor. Length 5-7 mm. Immature stages also similar. The larvse are 

 very destructive to the roots. 



Distribution: Java. 



Van Deventer, W. Handboek voor de Suikerriet-cultuur, .lava, 1906, pp. 32, 33, 



pi. 5. 



Phytalus smithi Arrow. 



(The Brown Hard-Back Beetle. Scarabseidse ; Coleoptera.). 



Hosts: Sugar cane. 



Injury: Larva trims the small roots and is liable to transportation in the soil around 

 cane plant.3. 



Description and biology: Adult beetle tawny red of the shape and appearance of a 

 June beetle, 14-18 mm. long. Pupation occurs in a cell in the ground. Larva a 

 white grub, usually curved, with large browni.sh head, and long legs; bores in the 

 sugar-cane stumps. Eggs laid in the soil. 



Distribution: Mauritius, Barbados, Trinidad. Has been distributed in cane ship- 

 ments. 

 Arrow, G. J. Annals and Mag. Nat. Hist., ser. 8, vol. 9, 1912, pp. 455-459. 



Aphanisticbus consanguineus Ritsema Bos. 



(The Flat-Headed Leaf-Miner Beetle. Buprestidae; Coleoptera.) 



Host: Sugar cane. 



Injury: Mines the leaves. 



Description and biology: Adult beetle, 3.5 mm. long, black, head and prothorax 

 with a bronzy tint. Pupa 3-5 mm. long, orange color, elongate elliptical, with all 

 appendages beneath. Larva when full grown about 6 mm. long, orange colored, 

 elongate, flattened, with sides crenulate. Eggs laid singly in the leaf. 



Distribution: Java. 



Van Deventer, W. Handboek voor de Suikerriet-cultuur, Java, 1906, vol. 2, pp. 



46-53, pi. 6. 



Hlspa wakkeri Zehntner. 



(Sugar-Cane Hispid Miner. Chrysomelidee; Coleoptera.) 



Hosts: Sugar cane. 



Injury: Mines the leaves of sugar cane. 



Description and biology: Adult beetle 5-6 mm. long, black, bristling with strong 

 spines. Pupa cylindrical, yellow or red brown in color, 6-7 mm. long, formed in 



