68 OHIO STATE ACADEMY OF SCIENCE. 
Scale of male: About .7mm. long, more or less circular, of the 
same general appearance as the scale of the female. 
Female: One pair of lobes, prominent, about as long as wide, 
notched on each side, somewhat rounded. Only a slight indication of 
second lobes. Mesal half of median lobes extend anteriorly to a 
conical tip. Inner process of first incision very long, club-shaped and 
knobbed at anterior end and is very constant; outer process small, 
narrow. Processes of second incision subequal. Margin of segment 
thickened for half of distance to the penultimate segment. Two plates 
caudad of first incision; between first and second incision, three to 
four, and laterad of second incision three plates. On the dorsal sur- 
face, a spine is located at outer base of median lobes, between first and 
second incision, laterad of second incision, and about one-half of 
distance to penultimate segment. On the ventral surface there is a 
spine just laterad of the corresponding dorsal spine except the first on 
the median lobe. Dorsal pores very small, inconspicuous with very 
long ducts, in three series; ist (extending anteriorly from first in- 
cision) of 4—5; 2nd of about 16; 3rd of about 9. Prof. Johnson found 
no circumgenital gland-orifices, but in 25 per cent. of the specimens 
examined, from one to three orifices were found in the place of the 
posterior lateral groups which are marked by chitinous bands. Anal 
orifice small and located anteriorly in distance three times the length 
of the median lobes. 
Remarks: Found on the trunks and the older limbs of the 
white elhn, Ulmus americana and Catalpa, at Columbus, Ohio. 
ASPIDIOTUS UVAE Comstock. 
Fig. 6. 
A. uvae Comst., Rep. U. S. Dep. Ag., 1880, p. 309 (1881). 
A. wae Newell, Contr. Ia. Ag. Coll., No. 3, p. 12 (1899) 
Scale of female: Circular, 1.5 mm. in diameter, rather flat, dusty 
tan-colored, lighter than dry bark of host. Exuviae sub-central, bright- 
yellow, covered. When removed leaves a conspicuous white spot. 
Scale of male: Elongated, length 1mm., width 0.5mm, slightly 
darker than scale of female, with exuvia submarginal and more convex. 
Female: Median lobes very prominent, parailel, notched on each 
margin and rounded, the mesal notch slightly nearer the apex; second 
and third lobes rudimentary with the inner angles slightly produced. 
Bounding each incision are two subequal chitinous processes, and be- 
tween the median lobes are two narrow thickenings. There are two 
simple plates between the median lobes and two serrate ones caudad of 
each incision. Outside of third lobe, are 3—-5 prolongations of the 
margin of the segment resembling plates and about as long as the 
spines. Spines on the dorsal surface are borne, one on each lobe and 
