Bui. 86, Bureau of Entomology, U. S. Dept. of Agriculture. 
Plate II. 
Effects of Plant-bug Attack on Cotton Bolls. 
Fig. 1.— Boll with section of carpel removed to show plant bug injury. Fig. 'J.— Portion of full- 
grown cotton boll, showing lock of cotton ruined by destruction of seed ai apex i>\ Thyanta 
CUStatOT, Fig. 8. — Lint partly removed from seeds to show discoloration by cotton stainei 
dercuA xittturltiix); a. Seed and attached lint from uninjured boll; b-C, same from boll dam- 
aged by cotton stainer, showing lint stained deepest close to seed. Fig. 4.— Decay of seeds in 
immature cotton boll as a result oi feeding by plant-bugs; no external evidence of injury. Pig. .">.— 
Exterior of cotton boll injured by Caloeorts ropidus. Fig. 6. — Cross section of immature cotton 
seed damaged by Pentatomid busrs. Fig. 7.— Inside of carpel of cotton boll, showing feeding 
punctures i>y plant-bugs. (Arrows point to punctures without proliferation.) Fig. 8. — Cotton 
boll showing external spots referred to on page 16. (Original.) 
