COCCIDAE OF OHIO. 47 



Female: Broadest toward posterior end, segments prominent. 

 Median lobes broad at base, tapering sharply and serrate. The mesal 

 margins approach at base and apparently fuse, forming a small, club- 

 shaped thickening extending anteriorly. Inner lobule of second lobe 

 very long and narrow, extending posteriorly two-thirds of length of 

 median lobe, and separated from it by almost its own width. Outer 

 lobule rudimentary, rounded. Third lobe rudimentary; lobules faintly 

 serrate. The gland spines are arranged as follows: 1, 1, 1, 1. .3-4; 

 large and conspicuous, decreasing in size toward the median lobes. 

 Spines on the dorsal surface are arranged as follows: first on base of 

 median lobe, lateral of center; second at base of second lobe, between 

 the lobules; third at base of third lobe; fourth about two-thirds of 

 distance to penultimate segment, posterior from the fourth gland-spine. 

 On the ventral surface, the spines are shorter and located just laterad 

 of the corresponding spine. First and second rows of dorsal pores are 

 absent; third row represented by 3-5 in the anterior and 3-6 in the 

 posterior group; fourth row by 2-4 in the anterior and 5-7 in the 

 posterior group. Median group of circumgenital gland-orifices, 4-10; 

 anterior lateral, 15-21; posterior lateral, 8-14. 



E-eniarks : Abundant on Gleditsia triacanthos (Honey- 

 locust) at Columbus; also found at Newark, Westerville and 

 <jedar I'oint. 



CHIONASPIS LONGILOBA Cooley. 



Ch. longiloba Cooley, Spec. Bull. Mass. Exp. Sta., p. IG (1899). 



Scale of female: 1.5 — 2 mm. in length, white or dirty-white in 

 color; texture moderately strong, not unlike Ch. salicis-nigrae. Bx- 

 xiviae, light-brown to dull yellow; about .8 mm. long. 



Scale of male: Small, .6 — .8mm. long, oval and without carinae; 

 exuvia, delicate light-brown or colorless. 



Female: Median lobes and inner lobule of second lobe long and 

 conspicuous. Median lobes obscurely pointed, serrate, slightly diver- 

 gent with small chitinous thickenings at inner bases. Inner lobule of 

 second and third lobes, serrate, larger than the outer and more pointed 

 than in ortholobis. Inner margin of second lobes bear a small narrow 

 chitinous process; third lobe very oblique. The gland-spines are 

 arranged as follows: 1, 1-2, 1-2, 1-2, 2-3; decreasing rapidly in size 

 toward the meson. Spines are arranged on each surface as follows: 

 first at outer base of median lobes; second and third at bases of outer 

 lobules of second and third lobes respectively; fourth about two-thirds 

 of distance to penultimate segment. The ventral spines are in each 

 case smaller and shorter, and located just laterad of each correspond- 

 ing dorsal spine. Second row of dorsal pores with only the anterior 

 group of 3-5 ; third row with 5-7 in the anterior and 4-5 in the posterior 

 group ; fourth row with 5-6 in the anterior and 5-7 in the posterior 



