244 APHIDS OF THE ROCKY MOUNTAIN REGION 
numerous sensoria; antenna 5.2, III 1.0 with 4-6 sensoria, IV .95-1, V 1, VI .33+.77; cornicle 
1.3-1.4; cauda .25 on median line. 
Male. Alate (Mounted in balsam), dark markings same as in alate vivipara. Body length 
3; hind tibia 2.5; antenna 4+ (broken in all specimens); cornicle .80-.85, reticulated area 
.12-.15 long; cauda .15 on median line. 
Collections. On leaves and stems of Sambucus pubens. Colorado: Bear 
Lake (in Rocky Mountain National Park), Cameron Pass and Pingree Park. 
Generally in northern Utah. Apterous summer viviparae June 4 to Aug. 28, 
alate viviparae Aug. 22, sexuales Aug. 22 (at 9000 alt.); rare. 
V 1.05-L15— 
VW1.25-.35+1.4-2- 
W.27 ge 
O(Alate’ aw AT DTS NBGA RRA AS EPS 3." 
ee eee sy He. Th 
aS eet 
a ree 
6 ee ne pe ste SR NS acob Danco Ee cao oe i) Apt. camman 
Fig. 289. Am*phorophora stanleyi 
Chief Distinguishing Characters. Pale yellow or green immaculate body 
color with pale appendages, long antenna (much longer than body, with IV and 
V each about the same length as III or even slightly longer and base of VI about 
twice as long as hind tarsal II), relatively few sensoria, located along posterior 
margin, in both viviparae and sexuales, short cauda (about the same length as 
base of VI), presence of reticulation on cornicle (area .16 long) and length of 
hind tarsal II (the same as that of rostral IV+V). 
Amphorophora tigwatensa Hottes 
Amphorophora tigwatensa Hottes, 1933:11; Gillette and Palmer, 1934:142. 
Apterous Summer Vivipara. Color similar to alate vivipara. Body length 2.85; across 
eyes .57-.59; hind tibia 2.9; antenna 3.9-4.8; rostrum attaining nearly to 3d coxa. Hairs slightly 
capitate. Cauda tapering with slight suggestion of neck, bearing 4-5 pairs of lateral hairs. 
Cornicle moderately swollen on distal half, about twice width of narrowest portion. 
¢ (04 186) oer 25-32) 
NWSE Wace RS j ; 7 
(86-94) 
poe 17) fren 0°70) 10-18) FSET ia) 
Coma (71- aaa : “ (16- ie-2) 
Alate Sina’! 
Apt. S86 te _Aleee 8 
Fig. 290. Amphorophora tigwatensa 
Alate Vivipara. Head and thorax yellow-brown; abdomen green or pink, with dusky 
lateral areas; antenna dusky except base of III; rostrum tibiae and cornicle dark brown; 
cauda pale; veins of wings bordered. Body length 2.78; across eyes .61; rostrum attaining 2d 
coxa. Hairs blunt; on side of abdomen .015-.02. Otherwise as in apterous summer vivipara. 
