The Aphididae of Nebraska 79 



On Artemisia frigid a. War Bonnet Canyon, June 23, 1890. 

 Oestlund mentions his having found both apterous and winged 

 males in this species. I was not able to find either, but the species 

 was not very plentiful and I did not get many specimens, which 

 probably accounts for it, and then it was rather early in the sea- 

 son also. 



Specimens in the collection of the U. S. National Museum 

 (no. 15). 

 ior. Siphonophora fulvae Oestlund. 



Oestlund, Syn. Aph. Minn., p. 80 (1887). 



Apterous viviparous female: Green. Very thickly pulverulent, causing 

 it to appear nearly white. Legs, honey tubes and the lower third of an- 

 tennae pale; tarsi, tips of honey tubes and outer two thirds of antennae 

 dusky to black. Tail rather small, pale. 



Winged viviparous female: Head and thorax dark green to brown. An- 

 tennae longer than body, more or less dusky ; III shorter than VII, IV 

 and V subequal. Beak reaching beyond second coxae, 0.40 mm. long. 

 Abdomen pale green. Honey tubes rather short, dusky to black. Tail 

 stout, pale, equaling the honey tubes in length, 0.23 mm. long. Length of 

 body 2.50 mm., to tip of wings 4.25 mm. 



Found on the upper branches and leaves of the wild touch-me- 

 not (Impatieiis fulva and /. pallida) in company with Siphono- 

 phora carnosa var. impatientis. Ashland, October 5, 1889; Wa- 

 bash, August 22, 1890. 



Specimens in the collection of the University of Nebraska (nos. 

 137. L38, 139). 

 102. Siphonophora gaurae n. sp. 



Apterous viviparous female: Pale yellowish green, shining. Antennae 

 about the length of the body, on very large frontal tubercles, pale, with 

 the tips of III, IV and V and all of VI and VII black; III and VII sub- 

 equal. Eyes red. Beak reaching nearly or quite to hind coxae. Legs of 

 medium length, pale, with femoral tips dusky and tibial tips and tarsi 

 black. Honey tubes reaching beyond tip of abdomen, but not beyond tip 

 of tail, 0.75 mm. long, pale, with dusky tips. Tail half the honey tubes 

 in length, robust, hairy, pale yellowish. Length of body 3.25 mm., outline 

 elongate ovate. 



Pupa: Color as above. Legs, antennae and honey tubes shorter. Tail 

 conical. Wing-pads pale green. 



Winged vizn parous female: Pale greenish yellow. Head and thorax pale 



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