148 APHIDS OF THE ROCKY MOUNTAIN REGION 
and dorsal bands on abdominal VII and VIII, often broken on former; cauda, anal plate, 
genital plate, cornicle, and appendages black. Body length 2-2.8; dorsal surface reticulated; 
hind tibia .9-1; hind tarsal II .13; antenna 1.1-1.25; rostrum attaining between 2d and 3d 
coxae. Cauda parallel-sided, with slight constriction near base, blunt, bearing 6-7 hairs on 
each side. 
Alate Vivipara. Head and thorax black; abdomen blackish green. Same in measure- 
ments as aptera except as figured. Secondary sensoria round, medium in size. Hairs pointed, 
shorter than diameter of III. Lateral tubercles present, especially on abdominal I and VII. 
Ovipara. Apterous. Color about as in apterous vivipara. Body 1.50-2 long, elongated 
posteriorly; hind tibia .60-.65; antenna .90. Hind tibia considerably swollen over almost 
entire length and bearing numerous sensoria. 
JO-22 Heb. 
why yh 
0. 
= yw, 21-2 
Wy ’ 
Fig. 164. Aphis lugentis 
Male. Nymph. Bright orange to salmon. Adult. Alate. Head and thorax dark brown; 
abdomen dusky orange with lateral areas on all segments anterior to cornicle and short dorsal 
dashes from III to tip of abdomen dusky; appendages, cornicle and cauda blackish brown. 
Body hardly 2 long; antenna same as in alate vivipara except sensoria on III, IV and V 
usually somewhat more numerous. 
Collections. On leaves, stems and roots of Senecio atratus, S. pratensis, S. 
hydrophyllus, S. spartioides and S. triangularis and Erigeron sp. Throughout 
region. Apterous summer viviparae May 26 to Oct. 22, alate viviparae June 12 
to Oct. 13, oviparae Oct. 10 to 22, males Oct. 4 to 22; common. 
Cotypes. U.S.N.M., No. 91 and Univ. of Nebr. Collection. 
The determination of this species was made by comparison with cotypes. 
Our aptera agrees with Williams’ aptera. His alata belongs to another species. 
The species name is held by the sige habe form, its description preceding that 
of the alate form. 
Chief Distinguishing Characters. Numerous sensoria on the antennae of 
both alate and apterous viviparae, bushy cauda, rather short unguis (shorter 
than the cornicle) and orange color of the nymph of the male. 
Aphis lupini Gillette and Palmer 
Aphis lupini Gillette and Palmer, 1929a:18 and 1932b:410; Knowlton, 1935a:112. 
Fundatrix. Head black; rest of dorsum blackish green; all appendages black throughout. 
Body 3 by 2; hind tibia 1; antenna 1.20, III+IV (coalesced) .47, V .23, VI .15+.18; cornicle 
.21; cauda .26. Otherwise as in apterous summer vivipara. 
: ne 
tr 1 19-24 
Hd Ta. 
oO? We 
en CEN BQ) 1) on Hd-Ti. SRa Ti. Alare viv. } 
I-15 fag na Viv. 
Fig. 165. Aphis lupini 
Apterous Summer Vivipara. Dusky-olive to blackish green, shading to brown or black 
on head and dark dorsal bands on abdominal VII and VIII; legs pale or dusky; cornicle, anal 
plate and genital plate and cauda dark. Body 2-3 by 1.1-1.8; hind tibia 1.10; hind tarsal II 
-15; antenna 1.5; rostrum attaining between 2d and 3d coxae. Cauda tapering, acute at tip, 
with but slight constriction near base, bearing 6-10 hairs on each side. 
