SUBFAMILY APHINAE 329 
Chief Distinguishing Characters. Pale green, pruniose body with pale legs, 
number of sensoria on III (6-20 in apterous, 27-“39” in alate vivipara), long IV 
(nearly or quite as long as III), length of rostral IV+-V (.14-.15), number of 
hairs (6-8 on a side) on cauda and short extent of reticulation on cornicle (.10- 
15 rarely .25). 
This species is close to M. albifrons and M. zionensis, differing in characters 
given in key. 
Macrosiphum timpanogos Knowlton 
Macrosiphum timpanogos Knowlton, 1942b:6. 
Apterous Summer Vivipara. (Cleared and mounted on slide), body immaculate; antenna 
and cornicle pale, dusky distally; cauda pale; tarsi, tips of tibiae and of rostrum blackish. 
Body length 4-5; across eyes .70-.75; antenna nearly 6; hind tibia about 4-4.5; rostrum attain- 
ing between 2d and 3d coxae. Cauda somewhat spatulate, rather broad, bearing about 5 pairs 
of lateral hairs. 
oP malo e2e2Qa o 5 Ter sd and, 
[2S m)6 Sen 11-24 
1.03 ~ 1.09 Gear V1.64-|.76" 133-151 P. 
" = Pees 
07-09 
1.05-120-—---— 7 
Fig. 394. Macrosiphum timpanogos 
Collections. On “lupine (?).” Utah: Hidden Lake Camp, Mount Timpan- 
ogos. Colorado: Eagle. Apterous summer viviparae, July 23 to Aug. 13; not 
common. 
Chief Distinguishing Characters. Number of sensoria on III of aptera, length 
of cornicle, length of antenna, length of cauda, extent of reticulated area on 
cornicle and pale cornicle. 
This species is doubtfully distinct from M. thermopsaphis. 
Macrosiphum valerianae (Clarke) 
Nectarophora valerianae Clarke, 1903:253. : 
Macrosiphum valerianae Soliman, 1927:137 (fate of types); Gillette and Palmer, 1928: 
18 and 1934:199. 
Alate Vv | Hol. Th s16 » aie R, 
EOLA OE Sw oh Ue 8 ES OO UA RFU eee er 8 yt < 
(90-110) je re 
ppl TTT TH Re mM 
POU ADEE in 2 
hel 
rez 
: aka L 
Preeti one ay he 
tS 
Fig. 395. Macrosiphum valerianae 
A 
80-110 
Apterous Summer Vivipara. Dark brown; cauda and anal plate slightly dusky ;*tibiae 
dusky to blackish; antenna except base of III, and cornicle except base black; rostrum dusky 
to blackish distally. Body length 2.1-3.6-4; across eyes .50-.53; hind tibia 2.2-2.9; antenna 
3.6-4.8; rostrum attaining 3d coxa. Hairs slightly capitate; on side of abdomen .03. Cornicle 
very slightly enlarged just proximad to reticulated area, imbrications appearing slightly 
denticulate. Cauda tapering, bearing 4-6 lateral pairs of hairs and a single dorsal preapical 
one. 
