22 THE CHINCH BUG. 
and, ventrally, a distinet circular dusky spot, covering .the last three joints. 
(ULE epee KOT ee sa), 
The pupa.—tin the pupa all the coriaceous parts are brown-black,. the 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 tip of abdo- 
men, both above and below, are larger. (Fig. 2, g.) 
The adult.—Blackish, hemelytra white with a black spot. 
Inhabits Virginia. 
Body long, blackish, with numerous hairs. Antenne, rather short hairs; 
second joint yellowish, longer than the third; ultimate joint rather longer 
than the second, thickest; thorax tinged with cinereous before, with the basal 
edge piceous; hemelytra white, with a blackish oval spot on the lateral middle ; 
rostrum and feet honey-yellow; thighs a little dilated. 
Length less than three-twentieths of an inch. 
I took a single specimen on the Hastern Shore of Virginia. 
The whiteness of the hemelytra, ine which is a blackish spot strongly con- 
trasted, distinguishes this species readily. 
To the foregoing description of the adult Dr. Asa Fitch, in his 
second report on the Insects of New York, adds brief descriptions of 
nine varieties, all, with but one exception, 
being based upon slight variations in color, 
some, perhaps, being due to immaturity, the 
single exception being the short-winged in- 
land form, of which variations from the 
nearly wingless to fully winged are shown 
in figures 3 and 4. 
Leaving, then, out of consideration the 
color varieties as arranged by Doctor Fitch, 
we have a long-winged form (fig. 3) in 
which individuals from the eastern portion 
FIG. 3.—Blissusleucopterus: adult Of the country differ from those found in the 
of long-winged form. Much West by being more hairy and robust, as 
eee te pointed out by Mr. Van Duzee, and a short- 
winged form (fig. 4), found along the seacoast, and in the North 
Atlantic Coast region, extending inland as far as the country adjacent 
to the Great Lakes. 
DEVELOPMENT AND HABITS OF THE YOUNG. 
The newly hatched young are very active, and the first to appear 
may be observed with their progenitors about the bases of wheat, corn, 
or grass plants, and later all stages are seen mingling together, having 
little appearance of belonging to the same species, so greatly do they 
vary in size and color in their several stages of development. 
As a rule the bugs confine themselves to the lower portion of the 
plants attacked, but may later push their way upward, especially if the 
lower portion becomes tough and woody, finally covering the plants in 
