SUBFAMILY APHINAE 89 
Collections. On leaves of Acer negundo. Colorado: Fort Collins. Utah: 
Numerous localities in northern part of the state. Idaho: Fish Haven. Funda- 
trices May 15 to June 4, alate summer viviparae June 20 to Oct. 2, apterous 
oviparae Sept. 5 to Nov. 2, males Sept. 3 to Oct. 3; quite common. 
Type. U.S.N.M. Paratypes, Colo. Agr. Exp. Sta. Collection. 
Fun datrix 
Alate) 
i 110-134 
a> 
ree EROS 
Alate Viv 
pag TP IIIT - 
ee =.22 l. : ~N. 
oat ; 60 - .80 
hnd | 
(Apt, 
rea ee we ji 
"Oo ” 90°"5 SOON 
o— 6 050 
ote °o 
pee Ser erke en es 
Fig. 96. Drepanosiphum braggii 
Genotype Drepanosiphum platanoides (Schrank) 
The Sycamore Aphid 
Aphis platanoides Schrank, 1801:112. 
Drepanosiphum platanoides, Buckton, 1876:183; Wilson, 1909b:349; Theobald, 1927: 
382. 
Alate Vivipara. Various shades of yellow or reddish to green with black markings and 
bands; legs and cornicle yellow to dusky orange; wings hyaline. Body length 2.7-3.5; hind 
tibia 2-2.25; hind tarsal II .18-.20; antenna 5, secondary sensoria large, oval to narrow-trans- 
verse, arranged in a single row; rostral IV+V .16 long, obtuse, hardly attaining 2d coxa. 
Hairs fine and pointed in adult; heavier on vertex .12 long and slightly capitate in nymph. 
Ovipara. Alate. Same as vivipara except antenna and hind tibia, as figured, anal plate 
which is not indented and tip of abdomen forming elongated ovipositor. 
Male. Alate. Similar to alate vivipara except antenna, as figured. 
Sen._i5-—20 
“ae Su sitaingeonnti 0.0 — p00 
SHerd B02 SPORES . ; 0s90h°e 5°96 995550% 
Cornicle 
o 
acisroe Ze Cran eee at fee: 
eae J Ge 2 25 ; 
=e ae” ep 
RSs SRR Alate Viv. <p 
Fig. 97. Drepanosiphum platanoides 
Collections. On leaves of Acer platanoides, A. campestris and A. pseudo- 
platanus. Utah: Logan. Alate viviparae June 4 and Sept. 19, oviparae Nov. 14; 
apparently rare. 
