128 MAINK STATE COLLEGE 



Pupa — [Fig. 5, Z5]. In the pupa jiU the coriaceous parts are 

 hrown-bhiek, tiie wing-pads extend almost across the two pale 

 abdominal joints, which are now more dingy, while the general 

 color of the abdomen is dingy gray ; the body above is slightly 

 pubescent, the members are colored as in the mature bug, the 

 three-jointed tarsus is foreshadowed, and the dark, horny spots at 

 the tip of the abdomen, both above and below, are larger. 



Perfect Insect (Say's description). — Blackish, hemelytra white 

 with a black spot. Body long, ))lackish, with numerous hairs; 

 antennae, rather short, hairs ; second joint yellowish, longer 

 Fig. 6. ^ tiian the third, ultimate joint longer 



the second, thickest ; thorax tinged 

 cinerous before, with the basal edge 

 piceoiis ; hemelytra (elytra) white, with a 

 blackish oval spot on the lateral middle ; ros- 

 trum and feet honey-yellow ; thighs a little 

 V^^IpC^x^ >^ dilated; length less than three twentieths of 



jk >^j»/ l\^ (Le Baron's description.) — Length 1 2-3 



^ T lines, or three-twentieths of an inch. Body 



JL black, clothed with a very fine, grayish down 



Chinch-bug, The short not distinctly visible to the naked eye ; basal 



line below shows nat- 

 ural length, joint of the autennte honey-yellow, second 



joint the same, tipped with black, third and fourth joints black ; beak 

 brown ; wings and wing-cases white ; the latter are black at their 

 insertion, and have near the middle two short, irregular black 

 lines, and a conspicuous black marginal spot ; legs dark honey- 

 yellow, terminal joint of the feet and the claws black. 



Life History. 



The mature hugs hybernate and may be found during the winter 

 months under grass, dead leaves and rubbish, in the field and 

 about thickets and timber adjoining the infested area. When the 

 weather is warm enough in the spring they emerge from their 

 hiding places and after finding suitable food plants for their 

 young deposit their eggs. This probably occurs in May in Maine, 

 but we have not had opportunity to determine when they begin to 

 move. Each female is said to be capable of laying about five 

 hundred eggs, and oviposition extends over twenty days. After 

 the eggs are laid the bugs live some time and may do damage 

 before they die. The eggs hatch in due time and the young pass 



