38 APHIDS OF THE ROCKY MOUNTAIN REGION 
Cinara osborni Knowlton 
Fig. 32. Cinara osborni 
Cinara osborni Know!lton, 1942b:7. 
Apterous Summer Vivipara. (Mounted in balsam), legs pale except tarsi and tips of 
tibiae which are black; antenna pale except I and II and tips of III, IV and V and distal two- 
thirds of VI which are dusky, as are also the terminal segments of the rostrum. Body 3.5-4; 
across eyes .85-.95; hind tibia 2.53; hind tarsal II .45; rostrum attaining middle of abdomen. 
Hairs moderately heavy and spinelike; abundant on body, on lateral portions .08-.095 long; on 
cornicle a few long spinelike hairs and more numerous fine shorter ones. 
Collections. On Pseudotsuga taxifolia. Utah: Aspen Grove and Mount 
Timpanogos. Apterous viviparae June 30; rare. 
Type. Knowlton Collection. 
Chief Distinguishing Characters. Length of hairs on cornicle (fine ones .07 
long; heavy, spinelike ones .13-.14), eyes sessile, ocular tubercle well developed, 
length of rostral IV (.20), length of hind tibial hairs (.12), color of hind tibia 
(mostly pale), length of hind tarsal II (.35) and length of body (3.5-4). 
Cinara palmerae (Gillette) 
The Spotted Spruce Aphid 
RES S38 aS 
: 8 SSAN3 & 
c “ ee 57 
27-28 28 > 5 
= er. s a 
OG26-28050 ocoBos = = 
£e8e PB 2OlS = SoA = 2 
° = 
Hd. Tib, 
Fig. 33. Cinara palmerae 
Lachnus palmerae Gillette, 1917a:135. 
Cinara palmerae, Gillette and Palmer, 1931:863. 
Fundatrix. Nymph. 1st instar, ashy gray due to pattern of pulverulence. Adult. Same as 
apterous summer vivipara. 
Apterous Summer Vivipara. Dark brown to blackish; with broken pattern of pulver- 
ulence, heavier laterally except on abdominal I; entire antennal I, II and VI and tips of IV 
and V, coxae, knees, tarsi and tips of tibiae, rostrum, cauda, anal and genital plates black or 
blackish. Cleared specimens with a few scattered dark areas at hair bases. Body length 3.5-4; 
hind tibia 2.2-2.5; hind tarsal II .26-.30; antenna 1.3-1.5; rostrum surpassing cornicles. Hairs 
fine; on hind tibia, length over 1.5 times diameter of tibia. 
Alate Vivipara. Same in color and measurements as aptera. Tibial hairs about twice as 
long as diameter of tibia. Fore wing with media twice forked. 
Ovipara. Apterous. Similar to fundatrix, differing as follows: powdery white markings 
much heavier, with head and entire dorsum of abdomen posterior to cornicles covered with 
