COCCIDAE OF OHIO. 39 
catawbiense). Both males and females are early enclosed in a 
white, dense, felt-like, ovoid sae about 3mm. long and 1.5 min. 
wide. The females when removed from the sae are dark purple, 
have 6-jointed antennae and an anal ring with eight hairs. The 
dorsal surface is covered with numerous spines and tubercles. 
PHENACOCCUS ACERICOLA (King). 
Pseudococcus aceris Smith, E. A., N. Am. Ent., p. 73 (1880). 
Phenacoccus acericola King, Can. Ent., xxxiv, p. 211 (1902). 
The adult female is concealed by an irregular cottony mass 6— 
8 mm. in diameter, on the underside of leaves of hard maple, appearing 
not unlike the ovisac of a Pulvinaria. The female itself is about 5mm. 
in length, oval, yellow and plump; the segmentation showing plainly 
toward the posterior end. The body surface is covered with spinner- 
ets which are more numerous posteriorly; also groups of spines are 
found on the margin of the body. The widely separated, 9-jointed 
antennae bear numerous, long, flexible hairs. Formula: 9, (1, 2, 3, 5,) 
(4, 6,) (7, 8). Mr. King says in his description that later in the fall 
when the females are well-filled with eggs, they bear 8-jointed antennae, 
with the following formula: 4, (8, 2,) 3, (1, 5, 6,) 7. 
The adult male issues from a white, closely woven, oval cocoon, 
usually attached under the rough loose bark of the trunk and larger 
limbs. Two long waxy filaments issue from the eighth and ninth 
segments. Antennae 10-jointed almost as long as the red body. Wings 
large, covered with white powder and iridescent in sunlight. 
Remarks: The author has found this species on Acer 
saccharum at Columbus, associated with Aspidiotus comstockt 
Johns. 
PHENACOCCUS OSBORNI: Sanders. 
Plate vii, (lower half). 
P. (Paroudablis) osborni Sanders, Ohio Naturalist, Vol. II, No. 8, 
p. 284, 1902. 
Female: (adult), 2 to 24% mm. in length, 1 to 144, mm. in breadth. 
flesh-colored and covered with a slight, white powdery secretion. There 
are seventeen very short, inconspicuous, lateral filaments on each side. 
Although the filaments are short, spinnerets and numerous hairs are 
scattered over the surface of the body, being especially numerous in 
the cephale region. On the anterior ventral margins of the second and 
third segment, are two large spiracles. The anal lobes, bear each, 
two long hairs and three short ones, besides the spines. The large, 
retracted anal ring bears the customary six long hairs, and is con- 
spicuously dotted. The eyes are prominent, though not large. The 
antennae are nine-jointed. The formula is as follows: (3, 2,) (4, 9, 5,) 
1, 8, (6, 7). The legs are well developed and darker in color than the 
