SUBFAMILY APHINAE 315 
Ovipara. Apterous. Same as summer apterous vivipara eXcept as follows: Body some- 
times pink or reddish; proximal third to half of hind tibia slightly swollen and bearing 
numerous sensoria; cauda .25 on median line. 
Male. Alate. Head and thorax brown; abdomen yellow with broken bands on IV, V and 
VI; spots on remaining segments and lateral areas dusky; antenna, beyond base of III, 
cornicle, anal plate, tarsi and tips of tibiae dark. About the same as alate vivipara in structure 
and measurements except as follows: Sensoria numerous on III, 17-22 on IV, 10-19 on V; 
cornicle .90; cauda .15 on median line, .20 on side. 
Collections. On leaves of Amelanchier alnifolia and Sambucus canadensis. 
Colorado: Bellvue, Log Cabin (west of Livermore), Mesa, Aspen and Grand 
Mesa. Utah: Mount Timpanogos. Apterous and alate viviparae June 30 to Aug. 
4, apterae to Aug. 24; sexuales Sept. 14 to Oct. 4; rare. 
Chief Distinguishing Characters. Pale green to yellow body, absence of 
reticulation on cornicle, number of sensoria on III (1-2 in aptera and 19-44 in 
alate vivipara), short rostral IV-+V (shorter than hind tarsal II), small number 
of lateral hairs on cauda (2-3 pairs), long cornicle 1-1.50, longer than antennal 
III and about twice length of IV). 
Measurements differing from those given above and found in some apterous 
examples were as follows: III .80-.90, IV .75-.84, V .75-.80, VI .18-.20-+1.25; 
cornicle 1.50. Sensoria on III of alate vivipara numbered 29-44 in specimens 
described by Hottes (1949a:45). The status of this form is uncertaain. 
Macrosiphum martini (Cockerell) n. comb. 
Nectarophora martini Cockerell, 1903a:169. 
Apterous Vivipara. Nymph. ‘‘Reddish; pruinose; not tuberculate.”’ Adult. ‘‘Dark wine- 
red; shiny’’; with dusky areas about bases of dorsal hairs; antenna, cornicle, tarsi and tips of 
tibiae black; cauda and anal plate pale. Body length 2.5-3; across eyes .54, antenna 4.10; 
hind tibia 2-2.5; rostrum attaining 3d coxa. Cauda with 5-7 hairs on each side. 
Alate Vivipara. ‘“‘Dark plum color; shining, with piliferous tubercles,’”’ cornicle and ap- 
pendages except base of antennal III black; cauda and anal plate pale. Body length 3; across 
eyes .50; antenna about 4; hind tibia 2.30; rostrum attaining between 2d and 3d coxae. Cauda 
slightly constricted near base, slender and bearing about 7 hairs on each side. 
95 Sen. 30 70 
Hd. Ta. ag 
— SD 15-18 95 at 
Ieee [fet 25 
Alate Viv. Wd. TE Alate{ go-w= 249-4 
3 J TI PTET TS ISS 
"Ba 90 Sen. 42-45 25 63-. 
Fig. 376. Macrosiphum martini 
Collections. On Eriogonum sp., Frasera speciosa, Helenium hoopsi, Ligusti- 
cum sp., Potentilla sp. and Zygadenus nuttalli. New Mexico: Beulah. Alate and 
apterous viviparae July 26 to Aug. 4. 
Type. U.S.N.M. 
Data for above description obtained by study of type specimens (one alate 
vivipara from Eriogonum and nymphs) and paratypes (2 alate and 3 apterous 
viviparae from Helenium) and from description by Cockerell. 
Chief Distinguishing Characters. Dark red to plum body in adult and the 
pruinose covering in young, length of reticulated area on cornicle (seventh to 
nearly third length of entire cornicle), number of sensoria on III (over 40 in 
alate and about 30 in apterous vivipara), length of antennal III (.80-.95) and 
length of cornicle (about same as III). 
The alatae, including the holotype seem practically inseparable from M. 
ambrosiae, but since the hosts differ and no transfer tests have been made the 
species is here left distinct awaiting further study. 
