The Aphididae of Nebraska 89 



as in the pupae. Honey tubes reaching to tip of abdomen, clavate. brown. 

 Tail short, slender, acute and brown. Length of body 2 mm., to tip of 

 wings 3.75 mm. 



When first noticed only the apterous females and pupae could 

 be found. On January 5 the first winged individuals appeared. 

 The species is close to P. galea psid is (Kalt.), but differs in color- 

 ation, in venation of the wings, in color and shape of stigma, in 

 shape of stigmal vein, and in the arrangement of the markings on 

 the abdomen, besides feeding on a plant of an entirely different 

 order. On forget-me-not (Cynoglossum sp.) in the greenhouse 

 of the botanical department of the State University, December, 

 1890, to January, 1891. 



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

 157, 158, 159) and of the U. S. National Museum (nos. 141, 142). 



116. Phorodon monardae n. sp. 



No description. Type from Ashland, May 24, 1890, on Mo- 

 narda fcstidosa, in collection of University of Nebraska, no. 160. 



117. Cryptosiphum canadensis n. sp. 



Apterous form: Pale green. Antennae nearly as long as the body, with 

 a few scattered hairs; VII about two and one half times VI; pale, with 

 the last half of IV, V, VI and VII black. Front with a few long stiff 

 hairs. Legs short, the femoral and tibial tips and tarsi black, rest paler. 

 Eyes black. Honey tubes and tail wanting. Length of body 2.40 mm. 



Winged form: Smaller than the apterous form. Head, thorax and an- 

 tennae black. Antennae on rather inconspicuous frontal tubercles, widely 

 separated at base, as long as body; VII at least three times VI; with fewer 

 hairs than apterous form. Front with stiff hairs. Eyes black. Beak 

 reaching middle coxae. Legs more or less hairy, colored as in apterous 

 form. Wings with yellowish insertions, slender, dusky veins and broad 

 dusky stigma. Abdomen dark green, apex hairy. Honey tubes repre- 

 sented by small pores. Tail hardly noticeable. Length of body 1.90 mm., 

 to tip of wings 2.95 mm. 



On Artemisia canadensis. War Bonnet Canyon, June 24, 1890, 

 and on Art. ludoviciana, Fremont, July 31, 1890. It is found on 

 the under side of the leaves and on the stem. It causes the leaves 

 to curl up more or less. It is easily distinguished from C. arte- 

 misiac Buckton, the only other species in the genus, by its color, 

 longer antennae and legs and much longer seventh antennal joint 



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