12 KANSAS UNIVERSITY QUARTERLY. 



Found massed on oleander leaves, much more abundant on 

 under side than upper side. Atchison, Kans. 



Aspidiotus sesculi Johns, sub. sp. solus sub. sp. nov. Plate VII, Fig. 30. 



Female scale circular, 2)4 to 3 mm. in diameter, ilat, dark in 

 central part, dirty gray around margin. Texture of scale light; 

 one side will adhere to the bark while the other side being loose 

 will curl up over, scale translucent. Exuviae laterad of the center, 

 sometimes on margin, covered with light secretion, easily rubbed 

 off showing light orange exuviae. Ventral scale almost invisible to 

 the naked eye. 



The plates of the female agree in the main with ann'cli/s, the 

 contour of the anal plate resembles the same species, notably the 

 depressed second lobes. The scale presents differences which 

 preclude a consideration of ancyclus. The scales are much scat- 

 tered and are situated singly. Upon seven twigs averaging three 

 inches in length, all chosen from the tree because they bore scales, 

 the following numbers of scales appear on each in the order ex- 

 amined: four, two, three, five, one, one, two. On the twig bearing 

 three, two of them were about one-fourth inch apart, the others 

 were more remote from each other. 



The male scale favors forbcsi in color, but the description of 

 jiiglans-regm in shape. 



Mature female. Light yellow, one pair of median lobes, notched 

 midway of lateral margin, lobes in some converging, in others the 

 inner line of lobe is straight or slightly divergent. Two pairs of 

 chitinous processes on each side, club-shaped. From the pair just 

 laterad of the median lobes there extend cephalad U-shaped 

 openings in the body wall. 



Plates prominent. Caudad of first pair of club-shaped processes 

 is a plate generally forked, between first and second pair processes 

 there are from none to three plates, caudad of second pair pro- 

 cesses are one or two plates. 



There is a spine near lateral margin of lobe, a pair of spines be- 

 tween the tw.o pairs of processes, a pair of spines just laterad of 

 second pair of processes, another pair one-third distance from lobe 

 to penultimate segment, a single spine a like distance from the 

 penultimate segment. 



Five groups of circumgenital glands, caudo-laterals 6 to 9, 

 cephalo-laterals g to 14, anterior o to 2. Club organs around 

 glands, in some cases obscuring the anterior group. 



From ten satisfactory mounts and many scales. On Juglans 

 ?iigra L. University campus. 



