136 APHIDS OF THE ROCKY MOUNTAIN REGION 
with tendency to constriction near base, or spoon-shaped and bearing 3-4 lateral and 3 dorso- 
lateral hairs on each side. Lateral tubercles well developed on prothorax and abdominal I and 
VII, quite small on remaining segments. 
Ovipara. Apterous. Same color as apterous vivipara except hind leg dark throughout. 
Size 1.66 by .80; antenna .70-.90. Hind tibia greatly swollen throughout and covered with 
numerous sensoria. 
Male. Alate. Color same as alate vivipara. Body length 1.50; antenna 1.15-1.40. 
jmen from Theobald » 25 
Pe 
EF LS 38 eee 
ss aoe 1; ries 
a le = 27) Me] 
SO ee ee 
: ROD, a7 ~ 35 
SS OCA EI UE OCU E eas 
f) oO a 
S[Ploes 6 5° SoCs EET IPO DS OVO DO CME DER As 7 24783 ae be 
.32-.38 .22-.26 .20 J0-12 
Fig. 149. Aphis fabae 
Collections. As winter host on leaves and stems of strawberry bush 
(Euornymus sp.), high bush cranberry (Viburnum opulus) and snowball (V. 
opulus var. sterile); as summer host, the following: Amaranthus retroflexus, 
Arctium sp., beet (Beta vulgaris), Capsella bursa-pastoris, Eupatorium sp., 
squash (Cucurbita maxima), Dahlia sp., carrot (Daucus carota), Gomphrena 
sp., Helichrysum sp., lettuce (Lactuca sativa), Oxytropis albiflorus, parsnip 
(Pastinaca sativa), bean (Phaseolus vulgare), rhubarb (Rheum officinalis), 
Rumex crispus, and sp., ornamental elderberry (Sambucus sp.), nasturtium 
(Tropaeolum majus), nettle (Urtica gracilis), and corn (Zea mays). Through- 
out region. Fundatrices May 7, apterous summer viviparae May 7 to Nov. 15, 
alate viviparae May 10 to Oct. 27, sexuales Oct. 20 to 27; common. 
Chief Distinguishing Characters. Dark olive-green to black body, bushy 
cauda, unusually long and numerous hairs on hind tibia, number of sensoria 
on antenna of alate vivipara (12-20 on III, 0-7 on IV), rather long rostral IV-+-V 
(.13-.15), much swollen hind tibia in ovipara bearing numerous large sensoria 
and alternation of hosts. 
Aphis filifol’ae Gillette and Palmer 
Anuraphis filifoliae Gillette and Palmer, 1928:9. 
pe filifoliae, Gillette and Palmer, 1932b:397 
i ec 
B=09 .08-.{ O28 
Fig. 150. Aphis filifoliae 
Apterous Summer Vivipara. Brownish amber to dark brown or blackish with lighter 
brown pattern which is covered with white reticulation on pronotum, abdominal I) Vial, 
borders of VIII, median portion of V, and lateral surface of entire body; appendages pale 
buff except tips of antenna and tibiae and entire tarsi; cornicle black; cauda and anal and 
