( 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 abdou en, 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 verbenae, new sp. 
Wingless female. Of a bright pea-green color throughout, (some 
specimens yellowish-green ;) with two or thvfee 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. On the common Tansy. 
20. Siphonophora fragariae, Koch. 
Green. On the Strawberry. 
