44 OHIO STATE ACADEMY OF SCIENCE. 



Female: The median lobes are fused nearly to the apex, notched 

 on lateral margin, rounded. Inner lobule of second lobe converging, 

 notched 'once or twice on lateral margin; outer lobule short, rounded, 

 usually entire. Third lobe broad and flat, scarcely divided, sometimes 

 serrate. A club-shaped process extends anteriorly from between 

 median lobes, also processes at inner margins of second and third 

 lobes. The gland-spines are arranged as follows: 1, 1-2, 2, 2-4, 5-7. 

 Those in the second and third groups are frequently forked at the tip. 

 Second row of dorsal pores absent; third row with 4-G in the anterior 

 and 4-.5 in the posterior group; fourth row with 4-5 in anterior and 4-6 

 in posterior group. Median group of circumgenital gland-orifices, 20-30; 

 anterior lateral, 18-42; posterior lateral, 20-30. 



Remarks : This native species is very common in Ohio on 

 TJhnus americana, and is pretty generally distribnted, almost 

 attaining economic importance. Each female lays about seventy- 

 five purplish, ellipsoidal eggs, in which stage the insect passes 

 the winter, hatching about the middle of May. In this latitude 

 there are two broods. 



CHIONASPIS CARYAE Cooley. 

 Fig. 29. 



Ch. caryae Cooley, Can. Entomologist, Vol. xxx, p. 8G (1898). 



Ch. caryae Cooley, Special Bull. Mass. Exp. Sta., p. 40 (1899). 



Scale of female: Length, 1.7 — 2 mm. Dirty white, inconspicuous 

 on bark of host; texture thick; form irregular and rather convex. 

 Exuviae dark-brown, 0.7 mm. long. The first exuviae is easily seen, 

 but the second is somewhat covered by secretion. 



Scale of male: Length, 0.5 — 0.7mm. Oblong to elliptical with 

 distinct median carina. The pale-brown exuvia occupies nearly one- 

 third of the scale. 



Female: Median lobes large, broad, entire, striate, diverging; the 

 inner margins fused half-way to the apex, and a club-shaped chitinous 

 process extending anteriorly. Inner lobules of second and third lobes, 

 much the larger and serrate; the outer lobule of third lobe often 

 obscure or obsolete. The gland-spines are arranged as follows: 1, 1, 

 1, 1-2, 4-7. The first pair are short and blunt. The second row of 

 dorsal pores represented only by the anterior group of 1-4; third row, 

 4-5 in anterior and 3-5 in posterior group; fourth row with 4-6 in anter- 

 ior and 4-5 in posterior group. Median group of circumgenital gland- 

 orifices, 10-18; anterior lateral, 20-29; posterior lateral, 15-22. 



Remarks: Collected by the author on Catawba Island, 

 Ottawa Co., July 10. 1902 ; the first report of its occurrence in 

 the state. Several small Avhite hickory trees (Hicoria alba), were 



