SUBFAMILY APHINAE . ae 
Alate Vivipara. About the same in color and méasurements as aptera except rostrum 
hardly attaining 2d coxa. 
Collections. On Chrysothamnus parryi, C naueosus subsp. nauseosus and 
C. viscidiflorus. Colorado: Lindland. Utah: Throughout state. Alate viviparae 
June 26 to 28, apterous viviparae May 2 to Sept. 16; rather common. 
Cotypes. U.S.N.M. and Utah and Colo. Agr. Exp. Sta. and Knowlton Col- 
lections. 
Chief Distinguishing Characters. Long, pale, clavate cornicle, long cauda 
bearing not more than two pairs of lateral hairs, length of IV (coequal with or 
exceeding III), sessile, infundibulate hairs on vertex of aptera and only moder- 
_ ately numerous body hairs. 
Capitophorus feragaeus Knowlton and Smith 
Capitophorus feragaeus Knowlton and Smith, 1936:110; Palmer, 1936b:742. 
Apterous Vivipara. Body pale; tarsi, tips o ftibiae and antenna beyond middle of III 
black; cornicle, cauda and tibiae pale. Body length 1.8-‘'2’’; antenna 3.2; hind tibia 1.05-1.10; 
rostrum acute but not with needlelike tip in ventral aspect, attaining or surpassing 2d coxa. 
Hairs on vertex and body funnel-shaped, .015-.02 long; on antenna and hind tibia blunt to 
pointed, .01 long and sparse. Cornicle slightly clavate; cauda rather slender and spatulate, 
bearing 2 pairs of lateral hairs and a single dorsal preapical one. 
Rostru 
Fig. 303. Capitophorus feragaeus 
Collections. On leaves and stems of Chrysothamnus nauseosus subsp. 
nauseosus. Colorado: McCoy. Apterous viviparae Aug. 24; rare. 
Cotype. Knowlton and C. F. Smith Collections. 
Chief Distinguishing Characters. Length of antennal IV (.57-.62, not equal 
to III) and length of V (not longer than .56), length of base of VI (not shorter 
than .15), length of body hairs on side (not longer than .015), length of cornicle 
(.48-.50, 5 times length of rostral IV+V and shorter than IV), length of cauda 
(not shorter than .35 for entire length). 
This species is very close to C. elongatus and pycnorhysus. 
Capitophorus filifoliae Palmer 
Capitophorus filifoliae Palmer, 1938:355. 
Alate Viv. G72 50 =i 
GD 70701 -Y0YO¥ WY -W- Wana exer rere gee nT Sarna sna) 
3? 27 28 i 
Apt. Viv 625-.36) pv (22-28) (23-28) 
Poe oe eee : as 2 
CoE Jeter (50 262) 
ae Hind Tibia 
Fig. 304. Capitophorus filifoliae 
Apterous Summer Vivipara. Entire dorsum medium green appearing pale and frosted 
due to numerous colorless capitate or rather funnel-shaped hairs; legs and cornicle pale yel- 
lowish, tarsi and tips of tibiae black; antenna dusky beyond III; cauda dusky. Body length 
1.1-1.3; width across eyes .36; hind tibia .72-.80; hind tarsal II .10-.11; rostrum with needle- 
like tip in ventral aspect, attaining 2d or 3d coxa. Cornicle cylindrical or slightly tapering. 
Cauda elongate, slightly constricted near base, bearing 2 pairs of lateral hairs and 2 median 
preapical ones. Hairs on head and body funnel-shaped at tip and with short stalk; .03-.05 
long on vertex; .01-.03 long on body; on appendages simple and blunt; .01 long. 
