178 MISCELLANEOUS STUDIES 



ADDENDA 



Since the preparation of this manuscript there have appeared a few papers 36 

 in which there are some new records for certain of the California Aphididae 

 and in which there are notes concerning the synonymy of some of the species. 

 These records are noted here and are listed in the Host Plant Index (appendix 2). 



2. Phyllaphis fagl (Linn.) on Fagus tricolor, Oakland (Essig, p. 321). 



7. Euceraphis betulae (Koch) on Betula populifolia laciniata and B. papy- 

 rifera (Essig, pp. 322-323). 



10. Eucallipterus tiliae (Linn.) on Tilia tomentosa, Berkeley (Essig, p. 323). 

 Baker places this species in the genus Myzocallis, for although it is quite distinct 

 from the type of Myzocallis, various species form definite connections leading to 

 this one. 



15. Myzocallis castanicola Baker .(Baker, p. 424). This name has been sug- 

 gested by Baker to replace M. castaneae (Buckton) (preoccupied by castaneae 

 (Fitch)). Therefore the name suggested by the author, M. davidsoni Swain, 

 must be dropped. Essig (p. 323) lists M. castaneae (Fitch), but he refers to this 

 species. 



19. Myzocallis californicus Baker (Baker, pp. 421-422). This is the same 

 species as described by the author under the name, Myzocallis maureri Swain, 

 which name will have to be dropped, and replaced by M. californicus Baker. 



53a. Lachnus tomentosus (De Geer), on Finns radiata, Berkeley (Gillette, 

 pp. 140-141). This species is very similar to L. pini-radiatae Davidson, accord- 

 ing to Gillette. The author finds on looking over his specimens that some of them 

 labeled L. pini-radiatae Dvdn. are this species, particularly those taken on the 

 campus at Berkeley. 



56. Amphorophora latysiphon Davidson, on Chrysanthemum and Primula sp., 

 Berkeley (Essig, p. 329). 



68. Macrosiphum granarium (Kirby), on Alopecurus pratensis, Ampelodesma 

 tenax, and Elymus sp., Martinez (Essig, p. 328). 



76. Macrosiphum rosae (Linn.) on Dipsacus fullonum and Centranthus ruber, 

 Berkeley (Essig, p. 329). 



79. Macrosiphum solanifolii (Ashmead), on Achillea millefolium and Pitto- 

 sporum tobira, Berkeley, and on TJlmus americanus, San Francisco (Essig, p. 329). 



88. Myzus circumflexus (Buckton), on Lilium spp., Pentstemon spcctabilis, 

 and Umbellularia calif ornica, Berkeley (Essig, p. 335). 



102. Rhopalosiphum lactucae (Kalt.). Dobrovliansky lists this as a synonym 

 of E. ribis (Buckton), giving the latter name preference. 



so Baker, A. C., Eastern aphids, new and little known, II, Jour. Econ. Ent., 

 vol. 10, pp. 421-433, 1917. 



Baker, A. C.. The correct name for our apple-grain aphis, Science, vol. 46, 

 pp. 410-411, 1917. 



Davidson, W. M., The reddish-brown plum aphis, Jour. Econ. Ent., vol. 10, 

 pp. 350-353, 1917. 



Dobrovliansky, V. V., A list of aphids found on cultivated plants in the gov- 

 ernment of Kharkov, in Pests of Agriculture, Kharkov, Bull. 1916; reviewed in 

 Kev. Appl. Ent., vol. 5, pp. 561-562, 1917. 



Essig, E. O., Aphididae of California, Univ. Calif. Publ. Entom., vol. 1, pp. 

 301-346, 1917. 



Gillette, C. P., Some Colorado species of the genus Lachnus, Ent. Soc. Am., 

 vol. 10, pp. 133-146, 1917. 



Van der Goot, P., Zur Kenntnis der Blattlause Java's, in Contrib. a la fauna 

 der Indes neerlandaises, vol. 1, pp. 1-301, 1916. 



