SUBFAMILY APHINAE 321 
Collections. On leaves of wild rose, Agrimonia striata, Eriogonum alatum, 
and Senecio uintahensis. Colorado: Log Cabin (west of Livermore), Boulder 
and Grand Junction. Utah: Brighton, Almaga,-City Creek, Emigration Canyon, 
Big Cottonwood Canyon and Granite. Idaho: Emigration Canyon and Boise. 
Alate and apterous viviparae June 6 to July 20; rare. 
Macrosiphum purshiae Palmer 
Macrosiphum purshiae Palmer, 1938:356. 
Apterous Summer Vivipara. Entire dorsum medium green, either slightly frosted or 
shining; antennal I and III, cauda and femora brown, all other parts of appendages black. 
Body length 2-2.5; antenna 4.15; hind tibia 2.10-2.80. Hairs blunt; on proximal half of an- 
tennal III .05 long. Cornicle imbricated, not reticulated. Cauda elongate, tapering, with 
scarcely any tendency to constriction at base, bearing three hairs on each side. Rostral IV+V 
triangular, almost, acute, hardly attaining 3d coxa. 
Led 26-28 115-120 ARSED 
26- 
Co 90-710 1")55 TT he! Hind Tibia 
Fig. 383. Macrosiphum purshiae 
Collections. On leaves and stems of Purshia tridentata. Colorado: Bellvue. 
Apterous viviparae Sept. 3 and Oct. 8; rare. 
Type. U.S.N.M., No. 52352. Paratypes, Colo. Agr. Exp. Sta. Collection. 
This species resembled M. pisi but differs as follows: Shorter, broader 
cauda, longer hairs, black color of appendages and length of unguis (longer 
than III). 
Genotype Macrosiphum rosae (Linnaeus) 
The Rose Aphid 
Aphis rosae Linnaeus, 1758:452 and 1761 :260. 
Siphonophora rosae, Buckton, 1876:103. 
Nectarophora rosae, Oestlund, 1887 :81. 
Macrosiphum rosae, Essig, 1911c:550; Theobald, 1926:65; Soliman, 1927:119; Gillette 
and Palmer, 1934:171. 
Apterous Summer Vivipara. Body pale green; appendages as in alate vivipara. Body 
length 2.50-3.50; hind tibia 2.35-2.85; antenna 3.2-3.8; rostrum attaining between 2d and 3d 
coxae. Hairs blunt. Cornicle cylindrical, often wider at base. Cauda with slight neck, bearing 
3-5 pairs of lateral hairs and 2 preapical ones. 
0099 00°00,P apo 0 LOLS 
3 (B5- 95) (sen.42-58) 
Alate Vivipara. Head and thorax black; abdomen pale green with black lateral areas; 
cauda pale; appendages, cornicle and rostral IV-+V black. Measurements and other characters 
as in apterous vivipara except as figured. 
Male. Alate. Head and thorax black; abdomen rusty yellow with black dorsal dashes and 
lateral areas; antenna and cornicle black; tibiae and cauda dusky. Body length 2; hind tibia 2; 
antenna 3.33, sensoria present on III and V. 
Collections. On leaves and twigs of cultivated rose. Throughout region. 
Apterous summer viviparae May 22 to Nov. 15, alate vivipara June 17 to Nov. 
27, males Nov. 1; fairly common. 
