Pkoceedixcs. ]II'_'4 41 



Melanoxantherium smithiae i .Minicll i. Similnr liahits to nhnvt' hut with 



shorter cornich-s. 



Several other Pterocommnas have been collected on i)olpar and wil- 

 low, hut are at ]ii-eseiit unidcut iticil on account of unsatisfactory state of 

 this suh-ti'ibe. 



APHIDINI (Tribe) 

 Aphidina ( Sui)trilie i. 



Anuraphis helichrysi (Kalt). Taken on ])luiu at Mission. A European 

 species confinetl in America t<i the West. Alternate host species of 

 Compositae. 



Anuraphis cardui (L.). Taken on Scoteii thistle oeeasionall.v. 



Anuraphis viburnicola ((HUette). On Viburnum opulus, Agassiz. 



Anuraphis crataegifoliae (Fitch). Fall migrants taken on apple; mig- 



i-atcs to clover. 

 Anuraphis roseus ( Baker \ 



Anuraphis sorbi (Kalti. 



(>nc. or possibly both, of these species taken lui ;i])i)le at Agassiz. 



Aphis helianthi (Monell). Taken on Cornus stolonifera from the flower 

 heads. Ilai'rison Lake, migrates to coiu|)osites. 



Aphis yuccae (Cowen). Present in lltL'l lui Yucca filamentosa on Experi- 

 mental Farm. Agassiz. 



Aphis neomexicanus ((_'kll.). A black sj)eeies from Idack currant as 

 primary host onl.v. 



Aphis rumicis (L.). Very common on a great variet.v of hf)sts — most 

 common on goosefoot, spinach antl beans. 



Aphis pomi (De Geer). Green apple aphis occurs tlnvuighout the Prov 

 ince, i-emaining- on apple entii-ely. 



Brevicoryne brassicae (L.i. The cabbage ajihis most comnnuily found on 

 erucifers in Pii'itish Cohunhia. 



Cavariella capreae (Fabr. i. A medium to la}-ge species migrating fi-on; 

 wiHow to I'ndx'llifers. ('(unmoii. 



Hyalopteris arundinis (Fab.i. Tlie meal.\- plum aphis. Taken at Agassiz 

 foi- the first time in UI24. 



Rhopalosiphum nympheae (L.i. Migrates between plum and various 



water plants. 

 Rhopalosiphum prunifoliae (Fitch). The common ajiple grain aiihid. 



generally mentioned in litei'atui-e as Aphis avenae. 



Rhopalosiphum grabhami (Ckll.). Found on Lonicera involucrata, in 



s|M'ing and I'all. curling the leaves, which bec(Uiie vai'iously colored. 

 Alternate host unknown. (Possibly hebuigs to genus Francoa). 



