33 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



Host Index to the Species Listed 

 English, Japanese and Scientific names 



Acer pictiim Thitnb. (Enko Kaede) 



Chaitophorus japonica, new species 

 Aegle sepiaria DC. See Poncirus trifoliata Raf. 

 Alnus incana glauca Ait. (Yama hannoki) 



Euceraphis japonica, new species 

 Angelica polymorpha Maxim. (Shirane senkiu) 



Siphocoryne japonica, new species 



Apple 



Aphis japonica, new species 

 " pomi DeGeer 

 " somei, new species 

 Artemisia vulgaris indica Maxim. (Yomogi) 



Macrosiphum absinthii (Linn.)? 

 Asteromoea indica Bl. (Yomena). See Boltonia indica Benth. 

 Astragalus sinicus Linn. (Genge) 



Aphis medicaginis Koch 

 Boltonia indica Benth. (Yomena) 



Macrosiphum rudbeckice (Fitch) 



Rhopalosiphum, species 

 Brassica campestris 'Linn. (Natane-na) Mustard 



Rhopalosiphum persicce (Sulzer) 

 Brassica chinensis Uinn. (Aburana Pak-choi) Cabbage 



Aphis hrassicce Linn. 

 Castanea sativaWxW. (Kuri) 



M y 20 callis kuricola (Mats.) 

 Castanea vulgaris japonica A. DC. See C. safiva Mill. 

 Castanopsis cuspidata Schot. (Shii) 



Eutrichosiphum passanice (Okajima) 



Nipponaphis ciispidatce, new species 



Pterochlorus tropicalis Van der Goot 

 Celtis sinensis Pers. (Enoki) 



Chromaphis celticolens, new species 

 Chcenomeles japonica Lindl. (Bake) Japonica or Japanese 

 quince 



Aphis pomi DeGeer 



