88 



A MANUAL OF DANGEROUS INSECTS. 



Description and biology: Adult moth green, front wings with two indistinct lines, 

 hind wings whitish. Larva Itrownish to greenish with yellow flecks 15 mm. long 

 (see plate xvi, figs, a, b, c, e, g, h). 



Distribution: India, Siam, Burma, Australia, Africa, Cyprus. » 



Zacher, Friedrich. Arbeit. Kaiserlich. Biolog. Anst. f. Land- u. Forstwirtschaft. 



band 9, heft 1, 1913, pp. 175-179, figs. 35-39. 



Pectinophora gossypiella Saunders (Gelechia) . 

 (The Pink Bollworm. Gelechiidse; Lepidoptera.) 



Host: Cotton. 



Injury: Breeds in the bolls, especially in the seed. Liable to be imported in cotton 

 seed. live specimens have been taken in quarantine in the United States. Some 



of these were in stray seeds in 

 baled cotton. 



Description and biology: 

 Moth — small, gray colored, less 

 than half an inch long, with 

 long brown fringes on the 

 wings. Pupa brown, less than 

 half an inch in length. Larva 

 white when very young, but 

 becoming pink; feeds in green 

 or ripe bolls, first attacking 

 the leaves or outside of bolls; 

 later it bores inside of the boll, 

 feeding on the seed. The lar- 

 val period is sometimes very 

 greatly retarded. Eggs de- 

 posited singly on leaves, 

 stalks, and bolls hatch in a 

 few days. (See text fig. 48.) 

 Has become established in 



Fig. 48. — Cotton pink boUwoTin {Pcctiimphora gossi/pieUa): a, 

 Adult; 6, c, larv:r: d, pupa; e, cocoon. (Maxwell-Lefroy.) 



Distribution: India, Africa, Hawaii, New Caledonia 

 the Laguna District, State of Coahuila, Mexico. 

 Maxwell-Lefroy, H. F. Indian Insect Pests, pp. 93-96. 

 Maxwell-Lefroy, H. F. The Insect Pests of Cotton in India, Agricultural Journal 



of India, vol. 1, pp. 49-62. 

 Basu, S. K., and Dutt, H. L. Crop Pest Handbook for Behar and Orissa, 1913, 



Dept. Agr. Behar and Orissa, Calcutta, Leaflet 44, pi. 31. 



Pyroderces simplex Walsingham. 

 (The Little Bollworm. Gelechiidse; Lepidoptera.) 



Host: Cotton. 



Injury: Breeds in the bolls, especially in the seed. 



Description and biology: Adult moth light brown, with black and white niarldngs, 

 length 6 mm. Larva pink, 8 mm, long. Pupa light brown, 5 mm. long. The species 

 greatly resemhles Pectinophora gossypiella hut is smaller and differently marked. It 

 breeds in the same manner. 



Distribution: East Africa. 

 Morstatt, H. Der Pflanzer, Jahrg. 10, beiheft 1, 1914, pp. 29-31. 



