SUBFAMILY APHINAE 14 
Alate Vivipara. Same in measurements and color as aptera or with antennal segments 
slightly longer. Wings hyaline. Hairs fine, numerous; on vertex .06-.07; on body .07-.10; on 
hind tibia .06. Lateral tubercles well developed. Rostral IV+V. 16 long, broad, obtuse, 
attaining between 2d and 3d coxae. 
Male. Alate. Color same as in viviparae or darker. Body length 2.20-2.56; antenna 1.65- 
1.75. 
Ovipara. Similar to apterous vivipara except body possibly darker, antenna slightly 
shorter and hind tibia, slightly swollen and bearing numerous small sensoria. 
Male. Alate. Color same as in viviparae or darker. Body length 2.20-2.56; antenna 
1.65-1.75. 
Egg. 1 by .5. At first, honey-yellow; later, black; naked. 
Collections. On bark of twigs of Salix sp. and Populus sargenti and P. sp. 
Throughout region. Fundatrices April 1 to 29, apterous summer viviparae May 
5 to Oct. 25, alate viviparae May 6 to Oct. 27, oviparae Oct. 2 to Nov. 14, males 
Oct. 1 to Nov. 3; very common. 
Cotypes. Davis Collection. 
Chief Distinguishing Characters. Dark brown to bluish body color and 
shape and golden yellow color of cornicle. 
Specimens submitted to Monell were determined as his species though 
differing somewhat in size. 
Subtribe Fullawayina Baker 
Baker, 1920a:36. 
Characters. Frontal tubercles lacking. Antenna conspicuously hairy. Cauda 
semilunar; anal plate rounded. Cornicle apparently lacking. Differing from 
Chaitophorina in the apparent absence of cornicles. 
Genus Fullawaya Essig 
Essig, 1912:716; Baker, 1920a:37. 
Characters. Frontal tubercles lacking. Ocular tubercles present. Lateral 
tubercles well developed. Body and all appendages conspicuously hairy. 
Cornicle lacking. Cauda semilunar, broader than long. 
Gonopophyses 3. Secondary sensoria circular. 
Genotype (monotypical), Fullawaya saliciradicis Essig. 
Only one genus represented in region. 
Genotype Fullawaya saliciradicis Essig 
The Willow Root Aphid 
Fullawaya saliciradicis Essig, 1912b:737; Gillette and Palmer, 1931:926. 
Apterous Summer Vivipara. Head, pronotum and mesonotum dark brown, remainder 
dingy yellowish brown to brownish honey-yellow to blackish; finely pulverulent throughout; 
appendages sordid yellow with antennal I, II, VI and tips of III, IV and V dark and tarsi and 
tips of tibiae black. Body length 2-3; hind tibia 1.2-1.7; hind tarsal II .22-.26; antenna 1.6-2. 
Hd Bod 
: Hair 
Tiz Alate Viv. ) Ve 
Fig. 122. Fullawaya saliciradicis 
Alate Vivipara. Color and measurements same as in apterous vivipara. 
Hairs pointed, numerous; on antennal III about as long as diameter of III; on vertex and 
body, .08-.10; on hind tibia .04-.06, shorter than diameter of tibia. Lateral tubercles very 
large. Rostral IV+V .20-.22, attaining between middle and tip of abdomen. Wings hyaline; 
media of fore wing twice-branched. Other characters as given for genus. 
