﻿20 



SEVENTH ANNUAL REPORT 



ducing, in quotation marks, portions of the article referred to in the 

 Second Report. 



APPEARANCE AND TRANSFORMATIONS OF THE CIIESCH BUU. 



^^'^s- 2] Few farmers in this section of the country need 



an introduction to this insect ; but lest there be those 

 who are so blessed as not to know the gentleman by 

 sight, I annex his portrait. Known to science as 

 Micropus leuGopterus^he belongs to the Half-wing 

 \.^\igs, {Ileteroptera^ ihesdiVCiQ sub-order to which a 

 well known bed pest belongs, and he exhales the same 

 most disagreeable odor. He subsists by sucking with 

 his sharp pointed beak (Fig. S, i) the grasses and 

 Chinch bhg : Hair cereals, thereby causing them to shrink, wilt and 



line underneath showing , , . •, ^ • , • ,. • i , 



nauiraisize. Wither — and Hot by biting their substance as many 



persons suppose. Like the other species of its sub-order, it undergoes^ 



no very sudden transformations. Born as a little pale yellow 6-legged 



atom, scarcely visible to the naked eye, and with a tinge of red near 



the middle of the body, (Fig. 3, 



c,) it goes through four molts 



before acquiring wings. It is 



bright red, with a pale band f'/f^^w^^ 



across the middle of the body \ ^^j. 



after the first; somewhat 



darker with the merest rudi- 



ments of wing-pads after the 



[Fig. 3. J 



Immature Stages of Chinch Bdg: — a, h, eggs; c^ 



second and quite brown, with iiewly-hatchedlarva;;^, its tarsus; e,hirvaalterlirstmoltj 



' ^ /, same after second molt; (7, pupa— the natural sizes indi- 



fli<3finf>t winP---nads bnt; with cated at sides; /;, enlarged leg of perfect hug; j, tarsus of 



UlSUnCl Wing paus, UUU WlUU j^anie still more enlarged; i, proboscis or beak, enlarged. 



the pale transverse band still visible, after the third, in which it as- 

 sumes the pupa state, and from which, in the fourth molt, it escapes as 

 a winged bug. 



" There are, as is well known to entomologists, 

 many genera of the Half-winged Bugs, which in 

 Europe occur in two distinct or "dimorphous" forms, 

 with no intermediate grades between the two ; 

 namely, a short-winged or sometimes even a com- 

 pletely wingless type and a long-winged type. Fre- 

 quently the two occur promiscuously together, and 

 are found promiscuously copulating so that they can- 

 not posibly be distinct species. Sometimes the long- 



SlIORT-WINGED CUINCH • j j. • i. • 1 J 



Bug. Winged type occurs in particular seasons, and espe- 



