46 OHIO STATE ACADEMY OF SCIENCE. 
promiscuously arranged. Five groups of circumgenital gland-orifices; 
median, 4-6; anterior lateral, 5-9; posterior lateral, about 4. 
Remarks: This species was originally described on Huony- 
mus latifolia, at Norfolk, W. Va. It was reported on Althea, sp. 
at Cineinnati, Ohio. 
CHIONASPIS FURFURA (Fitch). 
Fig. 30. 
Aspidiotus furfurus Fitch, 5rd. Rep. Ins. N. Y., p. 352 (1856). 
Chionaspis furfurus Lint., Ist. Rep. Ins. N. Y., p. 351 (1882). 
Chionaspis furfurus (Fitch) Comst. Rep. U.S. Dep. Ag. 1880, p. 315 
(1881). 
Chionaspis furfura Cooley, Spec. Bull. Mass. Exp. Sta., p. 25 (1899). 
Scale of female: Length, 2—2.5mm. Grayish or snow-white, very 
broad posteriorly, flat, thin and delicate, often bent to left or right 
from the small, yellowish-brown exuviae. Irregular when massed. 
Scale of male: Length, 0.7—l1 mm. Distinctly tri-carinate, rough- 
ened above. Exuvia pale-yellow, covering about one-third of the scale. 
Female: Three pairs of striate lobes; median pair short, broad, 
rounded, entire, with two oblique, chitinous bars at their bases; 
second pair usually entire, somewhat truncate, inner lobule the larger, 
oblique with inner edge thickened; third pair serrate, sometimes 
prominent, but usually rudimentary. The gland-spines are arranged 
as follows: 1, 1, 1, 1, 4-9; the first is small or wanting. Second row 
of dorsal pores absent; third row with 2-4 in anterior and 3-5 in poster- 
ior group. Five groups of circumgenital gland-orifices; median, 7-16; 
anterior lateral, 22-32; posterior lateral, 16-22. 
» 
v 
3.) 
v 
Remarks: This is the most common species of the genus 
Chionaspis in the United States. It can be found upon Apple 
and Pear trees in greater or less quantity in almost any locality 
examined. It rarely becomes a serious pest in Ohio, because the 
lady-bird beetle Chilocorus bivulnerus is predaceous upon it, and 
usually precludes the necessity of resorting to remedial measures. 
CHIONASPIS GLEDITSIAE Sanders. 
Figs. 36, 37. 
Ch. gleditsiae Sanders, Ohio Naturalist, Vol. III, No. 6, p. 413 (1902). 
Scale of femaie: Length, 1.5—2mm. Irregular in form, usually 
very broad posteriorly, somewhat convex. Of rather firm texture, 
dirty-white, usually blackened and inconspicuous on host. When re- 
moved, a conspicuous white patch is left. 
Scale of male: Length, .6—.8mm. Sides parallel, strongly cari- 
nated. Exuvia pale-yellow, occupying about one-fourth of the scale. 
