1^2 ENTOMOLOGICAL NEWS. |_May, '07 



Aster multiflorus Ait. 



Baccharis haelimifiora L. 



Cakile edentula (Bigel.) Hook. 



Cuscuta gronozni Willd. (indoors). 



Cydonia japonica. 



Deringa canadensis (L.) Kuntze. 



Iva frutescens L. 



Parsnip (on the flower stalks). 



Potentilla litoralis Rydb. (indoors). 

 - Rhamnus cathartica L. 



Solidago sempervirens L. 



Washingtonia longistylis (Torr.) Britton. 



A second species has been found upon Vicia faba (indoors) 

 and upon the cultivated chrysanthemum (indoors). A species 

 occurs on C. frutescens (indoors) different from either of 

 those on the cultivated chrysthanthemum. I realize that this 

 list has merely the value of directing investigation by students 

 of this family. 



The variation in resistance to the attacks of aphids in the 

 following plants has seemed to me noteworthy. Two varie- 

 gated varieties of the myrtle — Vinca minor — are much attacked 

 by Aphis circumflexa, when grown under glass, while the 

 common non-variegated variety is but slightly attacked on its 

 tender shoots. One succulent-leaved variety of the Paris daisy 

 — Chrysanthemum frutescens — which I raised from seed un- 

 der glass, was not attacked by the aphid so abundant on the 

 typical specimens of the daisy growing alongside. The coccid 

 of the chestnut is seldom seen, except on strong, rapidly grow- 

 ing shoots sent out from stumps. In collecting an aphid from 

 the apple, I have noticed that full grown trees are not badly 

 infested here, whereas spindling shrubby ones, such as are 

 found along the highways and in orchards neglected from the 

 time of planting, are sometimes much infected. The extermin- 

 ation of such trees, I should think, would assist in the control 

 of the pest. 



Several of the highly colored aphids can not be successfully 

 fed to Coccinellids, such as Aphis lute sc ens, Cladobius sp., and 

 the red aphids of the golden glow, wild sunflower, iva, and 



