(5) 



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 

 capitate. A similar characteristic has been noticed by Buckton in 

 3I1/ZUS ribis, a species found on the Red Currant and the Gooseberry. 



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 pdlostachya. 



4. Siphonophora rosae, Reaum. 



Aphis rosae, Reaum. Ins., iii, PL 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. 31ag., 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 viciparous 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 



