SUBFAMILY APHINAE 265 
Male. Alate. Head and thorax black; abdomen dark olive-green; with dusky dorsal 
bands (broken into 2 rows) and lateral areas; frosted; appendages black or blackish. Body 
length 1.90-2; hind tibia 1.45-1.60; antenna 3. 
Collections. On leaves of Chrysothamnus nauseosus subspp. graveolens and 
nauseosus and C. parryi. Colorado: Wellington, Bellvue, LaPorte, Elk Springs 
and Fort Collins. Utah: Throughout state. Apterous summer viviparae April 
30 to Nov. 2, alate viviparae June 27 and 28, sexuales Oct. 26 to Nov. 8; not 
abundant. 
A large collection made on C. nauseosus subsp. typicus in Colorado on the 
Laramie River near Sand Creek Pass Sept. 23, consisting of apterous viviparae, 
Oviparae and alate males, differs only in slightly shorter cornicle in the apterous 
vivipara (.60-.93), shorter antenna (III .75-.90, IV .72-.80, V .63-.68, VI .14-.15-+ 
.83-1) and slightly smaller body size. As no definite line of separation can, at 
present, be drawn it seems best to leave the two forms under the same name. 
Cotypes. U.S.N.M., Utah and Colo. Agr. Exp. Sta. and Knowlton Collections. 
Chief Distinguishing Characters. Long slender cornicle (equalling or ex- 
ceeding antennal III), pronounced frontal tubercles, long Macrosiphumlike 
cauda, short, acute rostral IV-+V, small number of sensoria on III (not over 15 
in alate vivipara and not over 7 in aptera), long IV (equalling or exceeding III) 
and character of hairs (merely blunt on vertex, sessile funnel-shaped to elon- 
gate-capitate or blunt on dorsum of body and pointed on venter). 
Capitophorus palmerae Knowlton 
Capicopherus elongatus Knowlton (alleged misidentification), Gillette and Palmer, 
1934:148. 
Capitophorus palmerae Knowlton, 1935b:282. 
Capitophorus chlorophainus Knowlton and Smith, 1936c:109 (new synonymy). 
This species is doubtfully, in the mind of the writer, separated from C. 
elongatus Knowlton; the only difference seeming to be more numerous hairs 
on the abdomen of C. palmerae. The flattened or indented anal plate mentioned 
by Knowlton for elongatus does not appear in all specimens; tendency to more 
numerous sensoria claimed for palmerae by Knowlton likewise does not appear 
in all specimens and the difference claimed in the length of rostral IV+-V did 
not appear appreciable from observation of types and metatypes. It appears 
best, however, to leave the species distinct till more information on the other 
life cycle forms is available. 
Apt 
Viv. 
Sen. 0-2 (20 - 85) 76 
=—=— 
es War 
Fig. 317. pair ty palmerae 
Chief Distinguishing Characters. Shape of hairs on the vertex (funnel- 
shaped), length of hairs on antenna and hind tibia (almcst invisible). color of 
cornicle (pale), length of cornicle (not longer than three-quarters of antennal 
III) and number of hairs on cauda (2 pairs of lateral hairs). 
Collections. On leaves of Chryssthamnus nauseosus subsp. typicus and C. 
viscidiflorus. Colorado: Cache la Poudre and Laramie Rivers, Gould and Estes 
Park. Utah: Beaver Canyon. Apterous viviparae Aug. 6 to Sept. 16; rare. 
Paratypes. U.S.N.M. and Colo. Agr. Exp. Sta. and Essig Collections. 
Capitophorus pseudoglandulosus n. sp. 
Capitophorus glandulosus (Kaltenbach) (misidentification), Gillette and Palmer, 
934:149. 
Apterous Summer Vivipara. Pale bluish green, with frosted appearance, except on 
median line, due to numerous white funnel-shaped hairs; appendages pale to slightly dusky; 
