458 



Pomona College Journal of Entomology 



Angelica sp. 



Aphis angelicae Koch.-Wilson, Jr. Ec. 

 Ent. II, 318, 1909. 

 Apple see Pyrus mali Linn. 

 Apricot see Prunus armeniaca L. 

 Arbutus menziesii Ptirsh. (Madrono). 

 Rhopalosipliuni arbuti Davidson, Jr. 

 Ec. Ent. Ill, 378, 1910. 

 Artemisia californica Less. (California 

 Sage). 

 Aphis medicaginis Koch, Morrison in 

 litt. 

 AruncJo sp. (Bamboo). 



Callipterus arundicolens Clarke, Can. 

 Ent. XXXV, 249, 1903. 

 Asclepias mexicana Cav. (Milkweed). 

 Aphis lutescens Monell-Davidson, Jr. 

 Ec. Ent. Ill, 377, 1910. 

 Ash-leaved Maple see Negundo ace- 



roides Moench. 

 Avena sativa Linn. (Oats). 



Aphis padi L. -Davidson, Jr. Ec. Ent. 

 Ill, 377, 1910. 

 Baccharis sp. 



Macrosiphum baccharidis Clarke, 

 Can. Ent. XXXV, 254, 1903. 

 Baccharis viminea DC. 



Macrosiphum rudbeckiae Fitch-Essig, 

 P. C. Jr. Ent. Ill, 402, I91I. 

 Bamboo see Arundo. 

 Barberry see Berberis. 

 Basswood see Tilia. 

 Bean see Phaesolus. 

 Beech see Fagus. 

 Beet see Beta. 



Berberis indgaris Linn. (Common Bar- 

 berry). 

 Liosomaphis berberidis (Kalt) Walk.- 

 Davidson, Jr. Econ. Ent. Ill, 378, 

 1910. 

 Beta vulgaris L. (Common Beet). 



Trifidaphis radicicola (Essig) Del. 

 Guer.-Essig, Po. Jr. Ent. I, 8, 

 1909. 

 Beta vulgaris L. var. (Sugar Beet). 

 Pemphigus bctae Doane-Clarke, Can. 

 Ent. XXXV, 248, 1903. 

 Betula sp. (Birch). 



Callipterus betulaecolens (Fitch) 

 Monell-Davidson, Jr. Ec. Ent. Ill, 

 376, 1910. 

 Bidens laevis L. (Marigold). 



Aphis calendulicola Monell-Clarke, 

 Can. Ent. XXXV, 250, 1903. 

 Birch see Betula. 



Black Mustard see Brassica nigra 



Koch. 

 Black Walnut see Juglans sp. 

 Blue Oak see Quercus douglasii H. 



Brassica campestris Linn. (Wild Mus- 

 tard). 

 Aphis brassicae L. -Davidson, Jr. Ec. 

 Ent. II, 302, 1909. 



Brassica nigra Koch. (Black ^lustard). 

 Aphis brassicae L. -Essig in Collec- 

 tion. 



Brassica oleracea L. (Cabbage). 



Aphis brassicae L.-Davidson, Po. Jr. 



Ent. Ill, 399, 1911. 

 Myzus persicae Sulz, Morrison in litt. 



Bromus secalinus L. (Chess, Cheat). 

 Aphis avenae Fabr. -Clarke, Can. Ent. 

 XXXV, 254, 1903. 



Buckthorn see Rhamnus. 



Burr Clover see Medicago denticulaia 

 Willd. 



Bursa bursa-pasioris (L.) Britt. (Shep- 

 herd's Purse). 

 Aphis gossypii Glover-Clarke, Can. 

 Ent. XXXV, 250, 1903. 



Buttercup see Ranunculus californicus 

 Benth. 



Cabbage see Brassica oleracea L. 



California Sage see Artemisia califor- 

 nica Less. 



Canaigre see Rumex hymenosepalus 

 Torr. 



Capsicum annum var. abbreviatum Fing. 

 (Celestial Pepper). 

 Myzus persicie Sulz. -Davidson, Jr. 

 Ec. Ent. II, 303, 1909. 



Carnation see Dianthus caryophyllum 

 L. 



Castanea sp. (Chestnut). 



Callipterus castanea (Fitch) Gillette- 

 Clarke, Can. Ent. XXXV, 249, 

 1903. 



Cat's Valerian see Valeriana offici- 

 nalis L. 



Ceanothus cuneatus Nutt. 



Aphis ceanothi Clarke-Davidson, Jr. 

 Ec. Ent. Ill, 377, 1910. 



Ceanothus integerrimus H. & A. 



Aphis ceanothi Clarke, Can. Ent. 

 XXXV, 250, 1903. 



Celestial Pepper see Capsicum an- 

 nuum var. abberviatum Fing. 



Cheat see Bromus secalinus L. 



Chess see Bromus secalinus L. 



