SUBFAMILY APHINAE 49 
Ovipara. Same as apterous vivipara except abdomen posterior to cornicles heavily pul- 
verulent and hind tibia slightly swollen and bearing scattered sensoria throughout nearly 
entire length. 
Male. Alate. Color similar to alate vivipara or abdomen more greenish; size slightly 
smaller; antenna .90; hind tibia .92. 
Egg. Newly laid, honey-yellow; later, black; shining. 
Collections. On Pseudotsuga taxifolia, on bark of twigs; in colonies; eggs 
laid lengthwise on needles. Colorado: Estes Park, Bellvue, Pingree Park, 
Laramie-Poudre Tunnel and Colorado Springs. Fundatrices May 22 and 28, 
apterous summer viviparae June 5 to Sept. 5, alate viviparae June 5 to 20, 
sexuales Sept. 8 to Nov. 25; fairly common. 
Type. U.S.N.M., No. 41956. Paratypes, Colo. Agr. Exp. Sta. and Hille Ris 
Lambers Collections. 
Chief Distinguishing Characters. Absence of black or definite mammiform 
base for cornicle, tibiae pale with only extreme tips blackish, body length 
(2.2-2.6) and length of tibial hairs in alate vivipara (.05-.08). The three latter 
points separate this form from C. pseudotsugae in which distal third to half of 
hind tibia is blackish, body is 3 long and tibial hairs .07-.12 in alate vivipara. 
The constancy of these characters was indicated by the results of experi- 
ments in which several colonies of the latter species were reared for several 
generations without change of characters appearing in the progeny. This 
species appears to agree with the description of C. taxifoliae (Swain) but ex- 
amination of the cotypes shows a wide difference in the length of tibial hairs. 
Cinara tanneri Knowlton 
Cinara tanner1 Knowlton, 1930:155 subspecies of edulis (Wilson). 
Apterous Summer Vivipara. Head, prothorax, lateral mesothorax and band on abdominal 
VIII blackish; abdomen with a few dark specks at hair bases along sides; cornicle, cauda, 
anal plate, rostrum, femora, knees, tarsi and tips of tibiae black; antenna and more than half 
of hind tibia dusky. Body length 4; hind tibia 1.70; hind tarsal II .25; antenna 1.30, III .48, 
IV .15, V .25, VI .17+.02; cornicle .20 in diameter at base of cone; rostral IV .30, V .09, at- 
taining middle of abdomen. Hairs on vertex and body medium fine to spinelike .04-.06 long; 
on cornicle .10; on hind tibia at angle of 60 degrees, .06 long (diameter of tibia .08), on III 
nearly erect, .03-.05 long (diameter of segment .05-.06). 
Collection. On Pinus monophylla. Utah: Raft River Mountains. Apterous 
vivipara in June 19; apparently rare. 
Type. Knowlton Collection. 
Chief Distinguishing Characters. Short IV (but little longer than half of 
V), rather short hind tibia and long rostral IV (about twice as long as antennal 
IV). 
Not figured on account of similarity to C. edulis. 
Cinara terminalis (Gillette and Palmer) 
The Terminal Twig Pinyon Pine Aphid 
Lachnus terminalis Gillette and Palmer, 1924:19. 
Cinara terminalis, Gillette and Palmer, 1931:873. 
Fundatrix. Same as apterous summer vivipara or color slightly darker. 
Apterous Summer Vivipara. Color light cinnamon-brown, in some cases, shading into 
greenish, darkest on middle of dorsum; light pulverulence on head, thorax and intersegmental 
lines from abdominal I through IV; appendages yellowish with usual parts black, about half 
of hind tibia black; cornicle black. Body length 2.25; hind tibia 1.50; hind tarsal II .22-.28; 
antenna 1; rostrum attaining nearly to end of body. Hairs on hind tibia fine, rather sparse, 
length about same as diameter of tibia. 
Alate Vivipara. Same as aptera except hairs on hind tibia with length 1.5-2 times diam- 
eter of tibia; fore wing with media twice-forked. 
Ovipara. Same as apterous vivipara except as follows: Size of body variable, usually 
smaller; entire hind tibia black and with sensoria as figured. 
