)■) 
THE CHINCH BUG. 
and, centrally, a distind circular dusky spot, covering the last three joints. 
i Fig. 2, 0, >i. • . /'. i 
Tin pupa, in Hit- pupa all the coriaceous parts are brown-Mack, the wiii!;- 
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 -lightly pubescent, the members are colored as in the mature )»uu r . the 
three-jointed tarsus is foreshadowed, and the dark horny spots at tip of abdo- 
men, both above and in-low. are larger. (Fig. 2, g.) 
'I li< adutt.— Blackish, hemelytra white with a black spot 
Inhabits Virginia. 
Body Ion-, blackish, with numerous hairs. Antenna?, 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 feel honey-yellow; thighs a little dilated. 
Length less than three-twentieths of an inch. 
I took a single specimen on the Eastern Shore of Virginia. 
Tli.- whiteness «»t' the hemelytra. in which is a blackish spot strongly con- 
trasted, distinguishes this species readily. 
To i he foregoing description of the adult Dr. Asa Fitch, in his 
second reporl on the In-ects of Xew York, adds brief descriptions of 
nine varieties, all, with bnt one exception, 
being based upon slight variation- 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 
of the country differ from those found in the 
West by being more hairy and robust, as 
pointed otit by Mr. Van Duzee, and a short- 
winged form (fig. d). found along the seacoast, ami in the North 
Atlantic ( !oas1 region, extending inland a- far a- the country adjacent 
to the ( iivai Lakes. 
Fig. 3. — Blissus leucopterus: adult 
of long-winged form. Much 
enlarged (original). 
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 -ecu mingling together, having 
little appearance of belonging to the same species, so greatly do they 
vary in size and color in their severa] stages of development. 
A- a nde the bugs confine themselves to the lower portion of the 
plant- attacked, but may later push their way upward, especially ifthe 
lower portion become- tough and woody, finally covering the plant- in 
