Vol. VIII] ESSIG &■ KUWANA—SOME JAPANESE APHIDID^ 55 



Myzus, species 



Only apterous females were taken. They are very pale 

 transparent-yellow, 1.1 mm. long and with many knobbed hairs 

 on the body. The cornicles are pale and 0.5 mm. long. On 

 Noazami, Cnicus japonkus Maxim, (listed as Cirsium japoni- 

 ciim DC), Nishigahara, Tokyo, June 5, 1913. Collection 

 number 74. 



Phorodon, species 



A pale green species represented by a few apterous vivi- 

 parous females. Taken on Ayame, Iris san guinea Donn (listed 

 as /. sibirica orientalis Thunb.), Komagome, Tokyo, May 11, 

 1913. Collection number 23. 



Rhopalosiphum indicum Van der Coot 

 Figure 8 



1916— Rec. Ind. Mus., vol. 12, pt. 1, no. 1, pp. 1-3, fig. 1. 

 Feb. (Orig. desc.) 



The apterous viviparous females agree so well with the de- 

 scription of the above that we have no hesitancy in so desig- 

 nating them. As no description of the winged viviparous 

 female has ever been published the following has been pre- 

 pared : 



Winged viviparous female— Length 3.2 mm., width 1.5 

 mm. Prevailing color orange. Antennae black, with articles 

 I II and base of III dusky-yellow; lengths of articles: 1,0.19 

 mm. ; II, 0.09 mm. ; III, 1.04 mm. ; IV, 0.82 mm. ; V, 0.54 mm. ; 

 VI, 0.71 mm. (base 0.15 mm., filament 0.56 mm.) ; total 3.39 

 mm. The sensoria on article III are circular, of various sizes, 

 scattered along the full length, and varying in number on dif- 

 ferent individuals from 50 to 70. Article IV normally has 

 none, but may have from 1 to 3 ; V and VI have the usual num- 

 ber. ' Rostrum yellow, reaching to the 2nd coxae. Veins of the 

 front wings narrowly bordered with dusky brown, length 6 

 mm. Cox«, trochanters and bases of the femora lemon-yellow, 

 the remainder of the legs black. Cornicles black, widest near 

 the middle and narrow at both ends, the apical end being 



