LIST OF HOMOPTEROUS INSECTS. 



319. Aphis keducta. 



Viridi-fulva, convexa, subovata ; antenrue graciles, corpore multo 

 longinres ; comicula corporis decima longitudine ; pedes longi, 

 graciles. 



The viviparous wingless female. Greenish-tawny, convex, pear- 

 shaped ; front straight, bristly : feelers slender, much longer than 

 the body; fourth joint much shorter than the third; fifth a little 

 shorter than the fourth ; sixth a little more than half the length of 

 the fifth; seventh almost as long as the fifth and sixth: abdomen 

 more than twice the breadth of the chest, with a style at the tip : 

 nectaries a little shorter than the style, and about one-tenth of the 

 length of the body : legs long and slender. From the Sea Worm- 

 wood. Length of the body 1 line. 

 England. 



320. Aphis perseouens. 



Viridis, otata, convexa ; antennas gracillinue, corpore longiores ; 

 comicula corporis quadranie longitudine ; pedes longi, gra- 

 ciles ; alie hyalince. 



The viviparous tvingless female. Allied to A. Ulmaria. Pale 

 green, oval, convex : fnmt narrow : feelers very slender ; first joint 

 stout, seated on a protuberance ; fourth much shorter than the third ; 

 fifth a little shorter than the fourth ; sixth not half the length of the 

 fifth ; seventh longer than the third : abdomen with a very short 

 style : nectaries slender, as long as one-fourth of the body : legs 

 long and slender. 



The viviparous winged female. Wings colourless ; veins pale ; 

 distance between the first and second veins much more than twice 

 farther at the tips than at the base ; third a little nearer to the se- 

 cond at the base than at the tip, a little nearer to the second at the 

 base than the second is to the first ; first fork much nearer to the 

 second fork than to the third vein, not nearer to the third vein than 

 the third is to the second ; second fork as near to the fourth vein as 

 to the first fork ; fourth vein slightly curved, much nearer to the tip 

 of the second fork than to the tip of the rib-vein. From the Tansy. 

 Length of the body 1 J line ; of the wings 2 lines. 



