318 



University of California Puhlications [Entomology 



was of considerable interest to me when first taken because of 

 the characteristic and beautiful coloring. A few specimens were 

 also taken on Angelica, tomentosa Wats, which led me to believe 

 that the species might be Aphis angelic ae Koch, reported as 

 occurring in this state by H. F. Wilson," but a microscopic 

 examination at once proved it to be widely different from the 

 species described by Wilson. Not being able to place it in any 

 published description I have decided to describe it as new and 

 to name it after the genus of what appears to be the favorite 

 host plant. 



Fig. 10. Aphis cari, ii. sp. Apterous viviparous female. A, dorsal 

 aspect; B, tarsus; C, cauda; D, cornicle; E, antenna. (Original.) 



APTEROUS VIVIPAROITS FEMALE— YIRGOGENIA 



The typical apterous viviparous female is transparently 

 white, yellow or pale yellowish green with very noticeable darker 

 green markings on the dorsum and particularly a distinct trans- 

 verse patch between the bases of the cornicles. The form is 

 robust, the length averaging 1.7 mm. and the width 1.2 mm. The 

 head is usually pale whitish, yellow or pale yellowish green with- 

 out darker markings. The antennae (fig. 10, E) are whitish or 

 yellow throughout the basal half, the remainder being dusky or 

 black. Most of the articles are distinctly imbricated. The 

 length is about three-fourths that of the body, the lengths of the 

 respective articles being: I 0.06 mm., II 0.04 mm., Ill 0.32 mm., 



Jour. Econ. Ent., vol. 2, pp. 348-349, Oct., 1909. 



