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



NOTES AND DESCRIPTIONS 

 Macrosiphum absinthii (Linnaeus) 



One winged viviparous female and several apterous nymphs 

 of what appears to be this species were taken on Yomogi, 

 Artemisia vulgaris indica Maxim., at Nikko, June 19, 1913. 

 Collection number 89. In comparison with determined speci- 

 mens received from Prof. Theobald, England, there are not 

 quite so many sensoria on article III of the antennae and the 

 cornicles are somewhat differently shaped, but in other respects 

 they agree very well. 



M. yomogicola Mats, may prove to be this species. 



Macrosiphum granarium (Kirby) 



A good series of this species was taken on rice plants, Nishi- 

 gahara, Tokyo, Sept. 11, 1913. Collection number 103. 



Macrosiphum hagi, new species 

 Figure 2 



Winged viviparous female (Type) — One nearly perfect 

 specimen. Length 1.2 mm., width 0.7 mm. Prevailing color 

 dusky to dark green. Antennae with few, short, knobbed hairs 

 and black throughout excepting I, II and the extreme base of 

 III; length of articles: I, 0.12 mm.; II, 0.05 mm.; Ill, 0.6 

 mm. ; IV, 0.5 mm. ; V, 0.43 mm. ; VI, 1.02 mm. (base 0.2 mm., 

 filament 0.82 mm.) ; total, 2.72 mm. Sensoria of III circular, 

 of nearly the same size, in a row, and confined to the basal 

 fifth. There are 12 on this article of each antenna ; the normal 

 number occurs on V and VI. Rostrum reaching to the 3rd 

 coxae. Prothorax yellowish green, meso- and metathorax 

 lemon-yellow; coxae, trochanters and bases of the femora and 

 tibiae pale, the remainder of the legs being black. Wings with 

 dark veins; primaries 3.2 mm. in length. Cornicles faintly im- 

 bricated, pale with black tips, 0.5 mm. long. Cauda pale green, 

 0.25 mm. long. 



Apterous viviparous females (Paratypes) — Three good 

 specimens. Average length 1.1 mm., width 0.7 mm. General 

 color green. Antennae black, except I, II and most of III, 

 which are pale green, imbricated and with few short thick or 

 knobbed hairs; lengths of articles: I, 0.1 mm.; II, 0.05 mm.; 



