THE CANADIAN ENTOMOLOGIST 49 



THE CALIFORNIA SPECIES OF MYZUS, WITH THE 

 DESCRIPTION OF A NEW SPECIES. 



BY G. O. SHINJI, BERKELEY, CALIFORNIA. 



The following species of Myzus have been collected by the 

 writer in the vicinity of the University of California during 1915 



1. M. cerasi (Fabr.). Taken from curled leaves of cultivated 

 cherry {Primus cerasus) within sixty feet of the University of 

 California campus. 



2. M. circumflexiim Buckton. Found on following plants: 

 Vinca major, Solanum tuberosum, pansy, Ceanothus sp., Stachys 

 hullata, Plantago sp., Senecio nickanioides, Solanum nigrum, 

 Fuchsia sp , wAX ^o^\er {Cheiranthus cheeri), lilies, iris, gladiolus. 

 Nasturtium sp., water cress, foxtail, Cerastium viscosum, buck- 

 eye {Msctdus calif ornica). Sisymbrium sp., Viola sp., Symphori- 

 carpus racemosus, Boston ivy, Digitalis. 



3. M. rosarum Walk. Taken on wild and cultivated roses. 



4. M. rhamni Boyer. Taken from leaves, stems and berries 

 of California coffee-berry tree {Rhamniis californica) and also 

 Cascara sagrada. 



5. M. rlbis (L). Collected from under side of leaves of 

 wild gooseberry. University of California campus, April 10, 1915. 



6. M. sp. This species will be named by Professor 

 Essig. Host plant Aquilegia vulgare and A. truncata. Date of 

 collection, April 20, 1915 Berkeley, and also May 20, 1915, Inver- 

 ness, Marin County, California. 



7. Myzus godetiae, n. sp. 



Alate viviparous female. — General colour light green. Length 

 of body 1.6 mm. Width of abdomen .7 mm. Wing expansion 

 3.9 mm. Head broader than long, dusky, eyes dark red. Antennae 

 arising from prominent frontal tubercles, dusky. Length of 

 antennal joints: III, .5 mm.; IV, .3 mm.; V, .2 rnm.; VI, .1 mm.; 

 Spur .4 mm. 10-12 sensoria on III. Prothorax dusky, broader 

 than long, wider than head. Thorax dusky, width .7 mm. Legs 

 with apical two-thirds and one-third of tibia dusky, remaining 

 parts green. Abdomen green with large median dorsal patches or 

 rows and also marginal dots of black. Cornicles dusky to black, 



February, 1917 



