1046 LIST OF HOMOPTEROUS INSECTS. 



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

 the fourth ; sixth shorter than the fifth ; seventh longer than the 

 fifth and the sixth : abdomen with a very short style at the tip : 

 nectaries darker than the body, and about one-tenth of its length : 

 legs of moderate length. 



The viviparous winged female. Disk of the chest dark : wings 

 colourless ; distance between the first and second veins much more 

 than twice farther at the tips than at the base ; third much farther 

 from the second at the tip than at the base, much farther from the 

 second at the base than the second is from the first; first fork as 

 near to the third vein as to the second fork, much nearer to the third 

 vein than the third is to the second ; second fork nearer to the first 

 fork than to the fourth vein ; fourth vein curved, almost straight to- 

 wards the tip, as far from the second fork as from the tip of the rib- 

 vein. From the leaves of the Melon and the Cucumber. Length 

 of the body i line ; of the wings H line. 



England. 



324. Aphis Ranuncdlina. 



Pallide Jlavay fere elliptica ; fronte angtista, utrinque tuherculata ; 

 antennis corpore paullb longiorihus; corniculis pedibusque 

 sat longis. 



Pale yellow, almost elliptical : front narrow : feelers slender, 

 a little longer than the body ; first joint seated on a slight tubercle ; 

 fourth more than half the length of the third ; fifth shorter than 

 the fourth ; sixth much shorter than the fifth ; seventh more than 

 twice the length of the sixth ; nectaries about one-sixth of the 

 length of the body : legs slender, rather long. Length of the body 

 f line. 



a — h. England. (In Canada Balsam). From Mr. Walker's collec- 

 tion. 



325. Aphis 



Aphis Zeae, Curt. Ruricola, Gard. Chron. ii. 4, 1842. 

 England. 



