DOL APHIDS OF THE ROCKY MOUNTAIN REGION 
parae Aug. 21 to Oct. 6, alate viviparae May 22 and Sept. 24 to Nov. 8, oviparae 
(very few) and eggs Oct. 5 to 26, males Oct. 20 to 26; not common but rather 
abundant where occurring. 
On Elaeagnus augustifolia, as winter host: 
Fundatrix. Newly Hatched. Very light yellowish green with a pair of dorsolateral rows 
of dusky spots; cornicle often slightly dusky; head dusky with light median line. Body length 
.50-.55; cornicle .05-.07. Adult. Pale yellowish green with transverse mottling of darker 
green, forming a pair of dorsolateral vittae. Entire dorsum shagreened. Appendages, cornicle 
and cauda pale, with tarsi and tips of cornicle and antenna dusky. Body length 2; antenna 
1.35; cornicle .55-.65; cauda .15 on median line, .18-.20 on side. Hairs on body capitate; 
simple, sparse and short on appendages. 
Alate Vivipara. Distinguished from the above described alate form on thistle as follows: 
Antenna 2-2.43, sensoria 36-40 on III, 19-30 on IV, 9-13 on V, and cornicle is longer than III 
instead of about equal. 
Apterous Summer Vivipara. Same as apterous vivipard on thistle. 
Ovipara. Color similar to apterous vivipara. Body length 1.70; cauda .15 on median 
line, .20 on side; hind tibia .70, slightly swollen in middle half and thickly covered with small 
a5-5 
(50-55) 20g 
Fig. 297. eee braggii 
Collections. On leaves and stems of Eleagnus angustifolia, Hippophaes 
rhamnoides and Shepherdia argentea. Colorado: Fort Collins. Utah: Logan. 
Fundatrices March 9 to May 4, apterous summer viviparae May 1 to 11 and 
Oct. 31, alate viviparae March 17 to June 2 and Sept. 16 to Oct. 9, oviparae Oct. 
12 to 21, males (migrated from summer hosts) Oct. 14 to 31. 
Type. U.S.N.M., No. 41946. Paratypes, Colo. Agr. Exp. Sta. Collection. 
Our specimens differ from C. carduinus in longer antenna and more 
numerous sensoria; the form on Eleagnus grading closest and the form on Cir- 
sium differing most. 
C. braggii has been declared synonymous with C. flaveolus (Walker) by 
Hottes and Frison (op. cit.), following determination by Theobald of specimens 
sent him. Theobald gives C. carduinus as a synonym of C. flaveolus (Walker). 
Van der Goot (1915:119) considers C. braggii as distinct from C. carduinus and 
specimens sent to us by him support his statements. Theobald’s description 
(1926:250) of C. flaveolus appears to agree with above-mentioned specimens 
from van der Goot. Possibly all belong to one very variable species but the 
subject appears to need further study, especially more information as to the 
range of variation in Walker species. So for the present, we retain C. braggii 
for the American form. 
Chief Distinguishing Characters. Cylindrical, though curved cornicle, 
slender, acute, moderately long (.15) rostral IV+-V, short cauda in alate vivipara 
(.10 on median line shorter than rostral IV-+V), presence of sensoria on III, IV 
and V in alate vivipara, tuberculate shape of the sensoria and long cornicle (as 
long as III in alate vivipara and nearly twice as long in apterous vivipara). 
Capitophorus brevinectarius Gillette and Palmer 
Capitophorus brevinectarius Gillette and Palmer, 1933:350 and 1934:147. 
Apterous Summer Vivipara. Medium green, appearing frosted due to funnel-shaped hairs; 
cauda pale to slightly dusky; cornicle and appendages blackish except femora pale to brown. 
Body length 1.95-2.20; otherwise as in alate vivipara. 
