COCCIDAE OF OHIO. 49 
CHIONASPIS PINIFOLIAE (Fitch). 
Figs. 34, 35. 
Aspidio'us ptvifoliae Fitch, 2nd Rep. Ins. N. Y., p. 488 (1855). 
Chionaspis pinifcliaeComst., Rep. U. S. Dep. Ag. 1880, p. 318 (1881) 
Chionaspis pinifolia Cooley. Spec. Bull. Mass. Exp. Sta., p.30 (1899). 
Scale of female: Snow-white with bright orange or brown exuviae, 
shape depending upon width of leaf of host, but usually broadened 
posteriorly and very convex. Length, 3—4mm.; length of exuviae 
about | mm. 
Scale of male: Length, 1—1.3mm. The pale yellow exuvia 
occupies about one-third the length of the tri-carinate, posteriorly 
broadened scale. 
Female: Three pairs of thin, striate, well-developed lobes; the 
median almost circular in outline, entire, separated by about one-third 
their width, slightly diverging at the apex and joined anteriorly by 
an arched chitinous process. Inner lobule of second and third lobes, 
the larger and subtruncate. The gland-spines are arranged as follows: 
1, 1. 1, 1, 1-3, becoming shorter toward median lobes. The spines on 
the ventral surface are short and inconspicuous, situated one mesad 
the base of the first, second, third and fourth gland-spines respec- 
tively. Those on the dorsal surface are longer and situated mesad of 
the corresponding ventral spine. Second row of dorsal pores repre- 
sented by anterior group of 2-4; third row by 3-5 in anterior and 4-6 in 
posterior group; fourth row by 3-7 in anterior and 5-8 in posterior 
group. Median group of circumgenital gland-orifices, 7-13; anterior 
lateral, 12-20; posterior lateral, 14-18. The eggs are purplish, ellip- 
soidal; length 0.25 mm. 
Remarks: Native on various pines and spruces of the 
United States, especially in the states east of the Mississippi 
River. Many trees on the Ohio State University Campus are 
badly infested, appearing at a distance as if dusted with flour. 
CHIONASPIS SALICIS-NIGRAE (Walsh). 
Figs. 32, 33, 74. 
Aspidiotus salicis-nigrae Walsh., 1st Rep. Nox. Insects Ill, p. 39 
(1868). 
Chionaspis salicis Comst , Rep. U. S. Dep. Ag.. 1880, p. 320 (1881). 
Chionaspis salicis-nigrae Cooley. Spec. Bull. Mass. Exp. Sta., 
p. 19 (1899). 
Scale of female: Length, 2.5—4mm., broadest near middle, dis- 
tinctly convex, snow-white. Exuviae .§<—.9 mm. long, yellowish-brown, 
sometimes almost colorless. 
Scale of male: Length, 1—1.2 mm. Slightly broadened posteriorly, 
with posterior end rounded; feebly tricarinate. FExuvia varying from 
brown to almost colorless. 
