366 REPORT 4, UNITED STATES ENTOMOLOGICAL COMMISSION. 
There is likewise another species (C. rapidus) which was found perforating the 
young flower huds and bolls of cotton similar to the above. The head and anterior 
portion of the thorax are reddish-brown, the remainder of the thorax yellow with a 
double mark in the middle ; the wing-cases are brownish-black, with two longitudi- 
nal yellow lines from the upper outside corner of the wing-cases to the posterior edge, 
forming a dividing mark, somewhat shaped like the letter X. 
He lias also described a species of Lygaeus having similar habits 
(ibid.). In his manuscript work on Cotton (see Glover, 1878, Bibl. List) 
lie figures Leptoglossus phyllopus (Lin.) (=Anisoscelis dlbicinctus Sny),Eu- 
schistas punctipes Say, and Nezara pennsylranica De Geer, all of which 
are said to have been found piercing cotton bolls or buds, although their 
habits are normally predaceous. 
The amount of damage done in this way by the Boll Worm is very 
great, as a single young larva will travel from bud to bud, deserting 
each before its fall, until many have been destroyed. A bud pierced 
just before opening is forced into premature bloom; but the worm 
usually feeds upon the essential reproductive parts, rendering it in- 
capable of fructifying. (Plate IV, Fig. 3.) 
As the worms increase in size a great diversity in coloration and also 
in markings appears. Those individuals which have nearly reached 
their full growth vary from a dark brown or rose color to a light green, 
the latter being, perhaps, the predominant shade. Almost every con- 
ceivable intermediate stage of color is to be seen, while the markings 
vary almost as greatly. It seems to be well settled that the green 
worms are most abundant in the spring, while later, as the cotton blos- 
soms out fully and the silk of corn begins to assume its reddish tinge, 
the pinkish variety becomes more abundant and the brown worms do 
not appear in force until fall. 
In markings the worms vary from almost perfectly immaculate, un- 
striped individuals to those furnished with many spots and regular 
stripes. The commonest (we can hardly say the normal) arrangement 
of the markings is as follows: On each side of the body, extending from 
the head to the anal joint and including the spiracles, is a broad, whit- 
ish, lateral or stigmatal stripe. Just above this is a less broad subdorsal 
dusky stripe. Down the middle of the back is a narrower, dusky, medio- 
dorsal stripe, including a tine white line, and between this and the subdor- 
sal dusky stripe, in what may be called the dorsal space, are four or five 
very delicate whitish lines, so delicate in fact as not to interfere with the 
general color of the body. Of spots there are usually eight dorsally to 
each abdominal joint, normally black in color, the four dorsal spots ar- 
ranged trapezoidally, the anterior pair closest together. These spots 
arc simply piliferous tubercles and are very constant, a close examina- 
tion of even the immaculate individuals showing them still to be pres- 
ent, though colorless. Upon the meso- and meta-thoracic joints these 
tubercles are arranged across the dorsum in a single transverse row. 
Of the stripes the most constant appears to be the whitish lateral, all 
the others being more often wanting. 
