COCCIDAE OF OHIO: 57 
D. Median lobes converging; inner chitinous processes of 
first incision, bent or club-shaped forbesi 
DD. Median lobes about parallel; processes subequal. 
EK. Circumegenital gland-orifices absent perniciosus 
EE. Circumgenital gland-orifices present. 
F. Chitinous processes of first incisions long ostreaeformis 
CC. Median lobes short and broad, almost truncate, very 
close, and with second and third lobes forming a 
semi-circle; dorsal pores very numerous in four 
distinct rows glanduliferus 
CCC. Median lobes short and broad, scarcely notched on outer 
margin; lobes not forming a semi-circle; dorsal pores 
less numerous juglans-regiae 
AA. Plates complex, conspicuous; a toothed semi-circular 
plate between second and third lobes; second lobes 
often longer than median comstocki 
ASPIDIOTUS ANCYLUS Putnam. 
Fig. 5. 
Diuspis ancylus Putnam, Trans. la. Hort. Soe. xii, p. 581 (1877). 
Aspidiotus ancylus Putnam, Proc. Davenport Acad. Nat. Sci., ii, 
p. 346 (1879). 
Aspidiotus ancylus Comst., Rep. U. S. Dep. Ag., 1880, p. 292 (1881). 
Scale of female: Circular, 1—1.5mm. diam. Brick-red exuviae 
covered by gray film of excretion; remainder of scale dark gray, or 
almost black, except light gray margin. A very delicate, white ventral 
scale is present. Show a tendency to gather in clusters two or 
three deep. 
Scale of male: Of same color as female scale; is much smaller 
and elongated. Length, 1—1.5 mm.; width, .5—.6 mm. 
Female: Only the median pair of lobes developed, somewhat 
separated with the mesal margins parallel; notched on lateral margin 
about one-third of distance from subtrunecate apex, and frequently 
notched near apex on the mesal margin. Second lobes rudimentary, 
truncate, not extending beyond margin of segment. First interlobular 
incision rather wide and shallow, with variable, chitinous processes, 
usually straight, the inner the larger. Second interlobular incision 
similar; inner chitinous processes usually larger than the outer. 
Sometimes a very small incision laterad of second incision. Small chit- 
inous process at inner base of each median lobe. There are two plates, 
usually furcated, caudad of each incision and occasionally a third 
plate. The spines on the ventral surface are shorter than the dorsal 
spines, and situated at the base of the lateral margin of the median 
lobes and the rudimentary second and third lobes. The spines of the 
dorsal surface are slightly mesad of the corresponding ventral ones; 
the fourth being about two-thirds of the distance from the median 
