SUBFAMILY APHINAE ~ 331 
Body length 2.5-3.1; across eyes .55-.61; antenna 3.20-3.70; hind tibia 2.25-2.30; rostrum 
surpassing 2d coxa. Cornicle slightly expanded at base, slightly narrowed near distal end and 
enlarged just before flange, reticulated distinctly distally, faintly proximally. Cauda blunt, 
tapering, bearing 4 pairs of lateral hairs. Hairs slightly capitate; .04 on hind tibia, .03 on 
side of abdomen. 
Alate Vivipara. Head and thorax dusky brown; abdomen “greenish yellow” with dusky 
lateral areas and dorsolateral spots on segments II to V and narrow crossband on I; tibiae 
and rostrum pale except tips; antenna and cornicle pale proximally dusky distally; cauda 
and anal plate pale. Body length about 3; across eyes .54; antenna about 4; hind tibia 2.5; 
rostrum attaining between Ist and 2d coxae. Hairs pointed to slightly blunt; on hind tibia .03 
long. Otherwise as in apterous vivipara. 
> 
Seas 
- : 1,34 (broken) 
=Apt. Viv% 60-75) 15 
9.55 ~70_ fo6J2 
Fig. 397. Macrosiphum yagasogae 
Male, Alate. Head and thorax dusky brown to blackish; abdomen “dark green” with 
dusky lateral areas and irregular dorsal patches and mostly dusky posterior to cornicles; 
rostrum, cauda, anal plate, cornicle and antenna beyond base of III dark; tibiae except tips 
pale. Body length 1.52-1.78; across eyes .50; antenna about 4; hind tibia 1.82; hind tarsal II 
.16; cauda .12 on median line, .16 on side. Otherwise as in alate vivipara. 
Ovipara. Apterous. Same as apterous summer vivipara except as follows: Body length 
2.20-3; across eyes .53; antenna 3.15-3.45; hind tibia with almost entire length very slightly 
swollen and thickly covered with small sensoria. 
Collections. On leaves of Solomon’s seal (Smilacina sp.). Colorado: Mesa. 
Apterous viviparae July 22, alate viviparae July 15, males Sept. 10, apterous 
Oviparae Sept. 23; rare. 
Type. U.S.N.M. Paratypes, Hottes Collection. 
Chief Distinguishing Characters. Pale brownish yellow body and pale ap- 
pendages, length of V (exceeding IV), short cauda (hardly longer on median 
line, often shorter, than base of VI), length of base of VI (about twice length 
of rostral IV+V) and length of rostral IV+V (.12-.15, shorter than hind tarsal 
II). 
The species differs from M. glabrum apparently only in color, slightly longer 
appendages and host plant. 
Macrosiphum zerogutierreziae Smith and Knowlton 
Macrosiphum zerogutierrezis Smith and Knowlton, 1937b:272. 
Apterous Summer Vivipara. ‘Bright apple-green.’”’ (Mounted on slide), pale with 
cornicle beyond proximal third and antenna beyond base of III black; tibiae dark dusky; 
cauda light dusky. Body length 1.20-1.80; across eyes .36-.41; antenna 1.50-1.75-"'2.20"; hind 
tibia 1-1.20; rostrum attaining 3d coxa. Cauda slender, tapering, bearing 2 pairs of lateral 
hairs and one preapical hair. 
Alate Vivipara. Same as aptera except darker. Body length 1.50-2-3"; across eyes .43; 
antenna ‘‘2,05’’-2.25-‘'2.35"’; rostrum attaining 2d coxa. 
