hunter: the coccid^ of Kansas. 



13 



Through the kindness of Professor Cockerell I have received 

 some of the original material from which cesculi was described. I 

 have compared the two species as follows: 



A. sub. sp. solus compared with 



A. aesculi, taken from the original 

 material. 



Scales of solus uniformly darker than scales of (escuH. 

 Color of exuviae of solus lighter than exuviae of aesculi. 

 Texture of scale very delicate. Texture firm. 



Scale slightly convex. 

 Margin of scale distinct. 



Same. 



Scale flat. 



Margin of scale irregular and 

 frequently indistinct. 



Broad median lobe notched 

 once on lateral margin; lobe 

 bears spine. 



Laterad of lobe is an incision 

 bordered by club-shaped thick- filled with chitine forming a 



Laterad of lobe is an incision 



crescent-shaped structure. 

 Same. 



Same. 



enmgs. 



Line of U-shaped openings 

 extending cephalad in body wall 

 from the incision. 



Caudad of incision one forked 

 plate. 



Laterad of this incision from Laterad of this incision never 



two to five plates. more than two plates. 



Laterad of median lobe on Only three spines on lateral 



last segment are three pairs of margin of last segment and all 

 spines, each pair composed of arising from ventral surface, 

 one spine from each side of the 

 body wall, then a single spine 

 near penultimate segment, mak- 

 ing in all seven spines on lateral 

 margin of the, segment. 



Laterad of first incision is a 

 second incision but little smaller 

 than the first; the sides of this 

 bear club-shaped chitinous pro- 

 cesses. 



The body wall at this point is 

 entire and no additional chitine 

 is apparent. 



Dorsal glands numerous. 



Dorsal glands numerous. 



