(8) 



14. Siphonophora polygoni, Walk. 



Aphis polygoni, Walk., Zool., vi, 2249. 

 On Polygonum persicariae. 



15. Siphonophora salicicola, new sp. 



I have not seen this species living, hence cannot give the colors ; 

 and I have some doubt as to its generic position, the antennal tubercles 

 not being very distinct, and the plant on which it was found not the 

 kind on which the species of this genus usually reside. 



Winged individual. Antennae seven-jointed, of the usual form in 

 this genus ; apparently on tubercles ; all the joints transversely 

 wrinkled. Beak of medium length. Tail distinct, curved upwards, 

 expanding in the middle, and about half the length of the honey-tubes. 

 Honey-tubes long, reaching beyond the tip of the abdo.iien, cylindrical. 

 Wings with the neuration as usual in this genus , the second fork of 

 the third discoidal vein very near the tip, the distance to the tip not 

 more than one-sixth the distance to the junction of the first fork with 

 third vein. 



Specimens in glycerine. Found in June, by Miss Emma A. Smith, 

 at Peoria, Illinois, on willow. 



It is evidently not the Aphis salicicola, Uhler, [A. salicti, Harr.) 

 which is a Lachnus. 



16. Siphonophora verbenas, new sp. 



Wingless female. Of a bright pea-green color throughout, (some 

 specimens yellowish-green ;) with two or three deeper green, longitudi- 

 nal stripes on the abdomen. Eyes black. Antennae about as long as 

 the body, pale and colorless, except at the tips, where they are dusky. 



Honey-tubes reaching to or slightly beyond the tip of the abdomen, 

 cylindrical, pale. Tail rather short, whitish. Body regularly ovate, 

 somewhat elongated; medium size. 



Found at Carbondale, Illinois, November, on the leaves of Verbena. 



The following species are mentioned as probably found in the United 

 States, introduced from Europe. 



17. Siphonophora rubi, Kalt. 



Shining green and slightly pilose. On the Blackberry. 



18. Siphonophora pisi, Kalt. 



Various shades of green. On the Pea. 



19. Siphonoyhon tanaceti, Linn. 



Brown, with lighter shades. 0«i the common Tansy. 



20. Siphonophora fragariae, Koch. 



Green. On the Strawberry. 



