of the abdomen. Tail long and pointed. Body not tuberculate ; 
antennae with alternate hairs, which, under a high power, appear to be 
capitate. 
Apterous individuals. Body more or less covered with tubercles, 
out of which proceed hairs, which, in some specimens at least, are 
eapitate. A similar characteristic has been noticed by Buckton in 
Mi/zus ribis , a species found on the Bed Currant and the G-ooseberry. 
Honey-tubes dark, or the same color as the body, tail yellowish 
brown. Beak dark at the tip, reaching to the third coxae. 
Found September 1st, at Sioux City, Iowa, on the leaves and flower- 
stems of Ambrosia psilostachya. 
4. Siphonophora rosae, Reaum. 
Aphis rosae, Reaum. Ins., iii, PI. 21, Fig. 1-4. 
Siphonophora rosae, Koch, Pflanz., 178. 
On the tender shoots, leaf-stalks and flower-stalks of various culti- 
vated and wild roses. 
5. Siphonophora avenae, Fab. 
Aphis avenae, Fab., Sp. Ins., ii, 386. 
“ granaria, Kirby, Linn. Trans., iv, 238. 
“ hordei, Kyber, Germ. Mag., Leit. ii. 
“ cerealis, Kalt., Mon. Pflanz., I, 16, 6. 
On Wheat, Oats and Barley leaves, stems and roots, according to the 
time of the year. 
6. Siphonophora viticola, new sp. 
Apterous female. Rather broadly ovate, wide behind, about .08 of 
an inch long. Dusky brown, somewhat paler in front. Antennae 
scarcely as long as the body. Honey-tubes very long, slightly curved 
and slightly enlarged at the base, cylindrical, and fully one-fourth the 
length of the body. Honey-tubes, legs and antennae black, except 
that there appears to be a broad 'pale annulus on the last near the base, 
and in many specimens several pale rings. Tail distinct. 
Winged viviparous female . Similar to the wingless, somewhat more 
slender ; front parts darker, the head and central parts of the thorax 
being dark brown. 
The second discoidal vein more than usually distant from the third ; 
stigma dusky or brown, elongate, with sides parallel, pointed at the tip. 
In June and July, on the leaves near the tips of the branches, and 
also the tender twigs of cultivated grape vines. 
Whether this is the Aphis vitis of Scopoli or not, I have no means at 
present of ascertaining. 
7. Siphonophora setariae, new sp. 
Winged viviparous female. Antennae about as long as the body or 
slightly longer ; general color brown or brownish, usually with a slight 
