SUBFAMILY APHINAE 173 
Alate Vivipara. Alatoid Nymph. Green; tessellated. Adult. Head and thorax black; 
abdomen green, with lateral areas on all abdominal segments, dorsal bands on VII and VIII 
and appendages dusky. Same in measurements as aptera except antenna 1.05-1.15; rostrum 
obtuse, IV+V rather slender, attaining between 2d and 3d coxae. Hairs pointed, to blunt; 
.02-.03 long and semierect on antenna and hind tibia, Cauda elongate with acute tip, tapering 
to parallel-sided, bearing 3-4 ventrolateral and 3-4 dorsolateral pairs of hairs. Abdominal VIII 
without dorsal tubercle. Lateral tubercles well developed. Fore wing with 2d fork of media 
occasionally obsolete. 
Ovipara. Apterous. Body length 1-1.30; antenna .70, division between III and IV some- 
times faint; hind tibia on proximal half slightly swollen and bearing a few sensoria. 
Male. Apterous. Body length .80-1; antenna .65-.85; hind tibia .50; cauda .04 on median 
line, 40 on side, with 4 or more pairs of lateral hairs. 
Pizcezconaatie 40) 80 ST 
ade Viv 
are 197. Aphis. ‘saliceti 
Collections. On leaves and twigs of Salix sp. Colorado: Fort Collins, Lyons, 
Colorado Springs, Rabbit Ears Pass, Steamboat Springs, and Antonito. . Utah: 
Salt Lake City. Idaho: Buhl and Castleford. Apterous summer viviparae May 
18 to Aug. 20, alate viviparae June 10 to Aug. 20, oviparae and eggs June 11 
to Aug. 11, males June 11 to July 14; hardly common but often numerous where 
occurring. 
Chief Distinguishing Characters. Long pale cornicle with dark tip in 
aptera, two body colors (green and rusty red), small number of sensoria (5-7) 
on III of alate vivipara, long, rather Macrosiphumlike cauda in aptera and 
early appearance of sexuales (June 11). 
[Genotype Aphis sambuci Linnaeus] 
Aphis sambuci Linnaeus, 1758:451; Theobald, 1927:95; van der Goot, 1915:230; Hille 
Ris Lambers, 1935: 116 (biology) ; Jacob, 1949:90 (biology). 
t a 
Con vipa tel ib tegtset 
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we 
ver. - 
Apterous Vivipara. Young Nymph, Bright green to dark green. Alatoid Nymph. Tessel- 
lated. Adult. Sooty black to blackish green; dull; pulverulent, mostly in the form of white 
crossbands; appendages black. Body glokose, length 2.95-3.8; hind tibia 1,50; hind tarsal II 
.16; antenna 1.90; rostrum attaining between 2d and 3d coxae. 
After Theobald 
(from Hille A cept rostrum Hd. Ta, 
16 RisLambers) tibia and tarsus) 
Fig. 198. Aphis sambuci 
