COTTON INSECTS. 



87 



Ballou, H. a. Cotton Stainers. West India Bui., 1906, vol. 7, No. 1, pp. 64-85. 

 Basu, S. K., and Hutt, H. L. Dysdercus dngulatus Fabr.: Crop Pest Handbook for 

 Behar and Orissa, 1913, Dept. Agr. Behar and Orissa, Calcutta, Leaflet 45, pi. 32. 



Apion xanthostylum Wagner. 



(East African Cotton Weevil. Apionidse; Coleoptera.) 



Host: Cotton. 



Injury: Bores in the stem and holls. 



Description mid biology: A very small black weevil. The larva is yellowish white, 

 2 mm. long, curved and legless. It bores in the stem and roots as well as in the bolls 

 of cotton and is a very serious 

 pest. 



Distribution: German East 

 Africa. 

 Zacher, Friedrich. Arbeit. 



Kaiserlich. Biol. Anst. f. Land- 



und Forstwirtschaft, band 9, 



heft 1, 1913, pp. 157-163, figs. 



21-27. 



Apion armipes Wagner. 



This species is similar to the 

 a1 ove mentioned and attacks cot- 

 ton in a similar manner in Nyas- 

 saland. (Zacher., 1. c, p. 156, 

 fig. 21.) 



Authonomus vestitus Boheman. 



(Peruvian Cotton-Square Weevil. 

 Curculionidee; Coleoptera.) 



Host: Cotton. 



Injury: Verv injurious pest to Fig. 47. — Peruvian cotton square weevil, ^niAonomMSfesii^itS, 

 squares in Peru. °i^'«- (^^'^'«^^-^ 



Description and biology: Adult weevil resembles the Mexican cotton boll weevU 

 {A. grandis); length 2.5-4 mm.; oMong-ovate, convex, blackish piceous, rather closely 

 clothed with elongate whitish scales, with indistinct oblique lighter land on each 

 elytron, the two forming a l)asal triangle. Pupa white, formed in fallen squares. 

 Larva -white, curved, legless; feeds in the interior of cotton squares which fall to the 

 ground soon after the larva commences to feed. Egg oval, white, laid in square (see 

 text fig. 47). 



Distribution: Peru. 

 TowNSEND, C. H. T. Journ. Econ. Ent. 1911, vol. 4, No. 2, pp. 241-248. 

 Pierce, W. Dwight. Proc. U. S. Nat. Mus. 1912, vol. 42, No. 1889, pp. 155-156. 

 Pierce, W. Dwight. U. S. Dept. Agric, 1915, Report 102, p. 12, pi. 2, fig. 3. 



Earias insulana Boisduval. 



(Egyptian Cotton Bollworm. Cymbidae; Lepidoptera.) 



Host: Cotton. 



Injury: Very injurious; the larv£e feed in the 1 oils and squares. Adults have been 

 captured in quarantine in a few bolls of cotton from the island of Cyprus shipped for 

 propagation and botanical purposes 



