SEP 30 1800 



Kansas University Quarterly. 



Vol. 9, No. 2. APRIL, 1900. Series A. 



COCCIDjE of KANSAS, III. 



Oontribution from the Entomological Laboratory No. 72. 



BY S. J. HUNTER. 



With Plates XVIII to XXIV, inclusive. 



Chionaspis ortJiolobis Comstock. Plate XVIII, figs. 1, 2. 



On willow ( Salix sp. ) on bank of Kaw river, and cotton wood ( Popu- 

 lus sp.) in the vicinity of Lawrence; also on willow (Sali,'') on Uni- 

 versity camijus. 



CftioiKfsjtis salicis-m'f/rfr Walsh. Plate XIX, fig. 1. 



On willow (Salix sp.) near Lo.st Springs, Marion connty, and on 

 host of same ,a:enus near Greeley, Anderson county. 



In my study of these two species I have found the differentiation 

 (when the mature female only was represented in the material at 

 hand) attended by some uncertainty. In looking over the literature 

 I find the same difficulty sometimes expressed. The distinctive 

 haracteristics of each I have endeavored to set forth. The com- 

 parisons are ba.sed upon an abundance of material determined by the 

 writer from the Kansas localities given, and upon the following from 

 :he Division of Entomology at Washington : Specimens of C. ortholo- 

 ns from San Bernardino, Cal., the type locality, and C. salicis-nigrcv 

 Tom Mankato, Kan., authentic material, which through the courtesy 

 )f Mr. C. L. Marlatt I have had the privilege of studying in this con- 

 lection. 



C. ortholobis. C. salicis-nigrce. 



I SCALE OF MALE. 



Vithout carinje. ] Tricarinate. 



jjxuvue dark yellow or brownish. | Exuviie pale lemon yellow or colorless. 



SCALE OF FEMALE. 



^hite. 



'.8-2.2 mm. long. 



Ixuvise yellowish brown. 



8-K.U.Qr. A-is 2 [101]-K.U.Qr.-A ix 2-April. '00. 



White. 



2.6-3.4 mm. long. 



Yellow or colorless. 



