SUGAR-CANE INSECTS. 203 



Sesamia cretica Led. 

 (Durra Stem Borer. Noctuidse; Lepidoptera.) 



Host: Sugar cane, corn, durra. 



Injury: Very serious pest in Khartoum. Is liable to importation in seed cane. 



Description and biology: Adult, a stout bodied, creamy colored moth, with wing 

 expanse of about 30 mm.; hind wings silvery white; forewings creamy with faint 

 brownish markings. Pupa 15-18 mm. long, chestnut colored. Larva 25-30 mm. long, 

 varying from pinkish or yellowish to dead white; head brown, spiracles black. Egg 

 white, 6 mm. in diameter. While this pest is more important as an enemy of durra 

 and maize in Khartoum it is more likely to transportation in sugar cane. 



Distribution: Kiartoum, Sudan. 

 King, H. H. Third Report Wellcome Research Laboratory Khartoum, 1904, pp 



222-224; pi. 27, figs. 1, 3, 6, in color. 



Dlatrsea spp. 

 (Sugar-Cane Borer Moths. Pyralidag; Lepidoptera.) 



Species: ^Diatrxa saccharalis Fabricius; Mexico, West Indies, United States. 

 D. striatalis Sn.; W^est Indies, Java. D. canella Hampson; Trinidad, Grenada, 

 Guiana. D. lineolata Walker; Trinidad, West Indies, Central America, South 

 America. 



Hosts: Sugar cane and grasses. 



Injury: Very serious injiu"y by boring in the stalk. Easy to tranqjort in seed-cane 

 shipments. 



Description and biology: Gray moths with whitish-spotted larvae. Pupate in the 



stalks in the larval tunnels. Eggs are laid in clusters. Diatrsea saccharalis has been 



fully treated in American literature. The others behave in a similar manner. 



Barber, T. C. U. S. Dept. Agr., Bur. Ent., 1911, Circ. 139. 



Stubbs, W. C, and Morgan, H. A. Louisiana Exp. Sta., ser. 2, 1902, Bull. 70. 



Van Deventer, W. Handbook voor de Suikerrietcultuur, Java, 1906, pp. 131-139, 



pi. 20. 



Chllo simplex Butler. 



(Sugar-Cane Moth Borer of India. Pyralidse; Lepidoptera.) 



Hosts: Sugar cane, corn, sorghum, rice, millet. 



Injury: Very serious pest, boring in the stalks. It is liable to importation in 

 seed cane. 



Description and biology: Moth yellowish gi'ay, the male a little smaller and 

 darker. Pupation occurs in the larval tunnel. Larva about an inch long, with a 

 dirty white body and black head, a dark patch behind head and two dark longitudinal 

 lines on body. The small hairs of the body are set on black dots. The larva burrows 

 in the stalks of cane, corn, sorghum, rice, and millet. Eggs laid in rows, side by side 

 on the leaves. (See plate xliv, figs, a, g, m, s.) 



Distribution: India, Formosa. 

 Maxwell-Leproy, H. F. Moth Borer in Sugar Cane. Agr. Journ. India, vol. 1, pp. 



97-115. 



Basu, S. K., and Dutt, H. L. Crop Pest Handbook forBeharand Orissa. Calcutta 



Leaflet 56, pi. 38. 



Oiuiodes accepta Butler. 



(Hawaiian Sugar-Cane Leafroller. Pyralidse; Lepidoptera.) 



Hosts: Sugar cane, grasses, sedges. 



Injury: Feeds on the leaves, which it rolls for its protection. The damage is some- 

 times serious. Is liable to importation in seed cane. 



