SUBFAMILY APHINAE 27 
Type. Granovsky Collection. Paratypes, Knowlton and Colo. Agr. Exp. 
Sta. Collections. 
Chief Distinguishing Characters. Color pattern, scarcity or lack of sensoria 
on III in alate vivipara and shortness of the hairs (not longer than .05-.06). 
Cinara coloradensis (Gillette) 
The Black Polished Spruce Aphid 
2 OS 
— : 24-45 Sen.0-2 2-15 Apt.Miy 
Fig. 19. Cinara coloradensis 
Lachnus coloradensis Gillette, 1917a:133; Knowlton, 1930:157. 
Cinara coloradensis, Gillette and Palmer, 1931:849. 
Fundatrix. About the same as apterous summer vivipara. 
Apterous Summer Vivipara. Young Nymph. Pale gray with dusky green on head and 
region of cornicles, thorax nearly white; abdomen dusky to brownish. Adult. Brownish black, 
more or less rufous on head and thorax; with little or no pulverulence, appendages pale to 
brown with black on ends of femora, knees, tips to distal three-quarters of tibiae and entire 
tarsi. Body 3.35-4.3; hind tibia 3-3.2; antenna 1.6-2. Length of hairs on hind tibia, equalling 
third of diameter of tibia. 
Alate Vivipara. Same as aptera in measurements. Secondary sensoria tuberculate. 
Rostrum attaining middle of abdomen. Fore wing with media twice-forked. Hairs on hind 
tibia short, usually blunt, stout, drooping, length equalling half of diameter of tibia, rather 
sparse; hairs on body pointed, slightly longer than on tibia and erect. 
Ovipara. Cinnamon-brown to brownish black, shining; with head and thorax sordid pale 
yellowish green to light brown; venter pale greenish yellow, darker posteriorly and laterally; 
dorsum and sides of abdomen behind cornicles heavily covered with white secretion. Body 
length 3; antenna 1.50; hind tibia hardly swollen but covered with sensoria for nearly entire 
length. 
Male. Alate. Same as alate vivipara except as follows: Body length 2.70; antenna 1.45; 
hind tibia 2.12. 
Egg. Black; covered with short waxy threads from the abdomen of ovipara, applied by 
her hind tarsi. Laid lengthwise in a single row on upper surface of needle. Size 1.26 by .60. 
Collections. On Picea pungens and P. engelmanni, on bark of twigs and 
small branches, in colonies. Colorado: Loveland, Rocky Mountain National 
Park (alt. 8000), Grand Junction (Alexander Lakes, alt. 10,000) and Fort 
Collins. Utah: Logan. Fundatrices April 20, apterous summer viviparae June 
6 to Oct. 13, alate viviparae May 12 to Sept. 19, sexuales Aug. 18 to Nov. 12; 
fairly common, especially in parks. 
Type. U.S.N.M., No. 41941. Paratypes, Colo. Agr. Exp. Sta. Collection. 
This species is very closely allied to C. curvipes, differing as foilows: 
Smaller size (body not 5 long), smaller number (7-8 not 8-12) and more distal 
location of secondary sensoria on III of alate vivipara, hairs on hind tibia not 
