SUBFAMILY APHINAE 23 
Egg. Newly laid, yellowish brown; later, black, lightly covered with white secretion. 
Placed end to end lengthwise on upperside of needles. Size .93 by .40. 
Collections. On Pinus flexilis, on bark of twigs and small branches; in 
large colonies; quite sluggish and slow to escape. Generally in northern Colo- 
rado. Idaho: Beaver Creek. Apterous summer viviparae July 4 to October 5, 
alate viviparae July 7 to Sept. 27, sexuales Sept. 2 to Oct. 5; very common. 
Type. U.S.N.M. No. 41964. Paratypes, Colo. Agr. Exp. Sta. Collection. 
Metatypes, Hille Ris Lambers Collection. 
Chief Distinguishing Characters. Short tibial hairs (hardly exceeding half 
diameter of tibia in apterous vivipara), length of rostral IV (.17-.20), number 
of sensoria on III in alata (8-11) and color of body (dark brown). 
Cinara arizonica (Wilson) 
The Giant Pine Aphid 
Fig. 14a. Cinara arizonica 
Lachniella arizonica Wilson, 1919b:22. 
Cinara arizonica, Palmer, 1945:448. 
Apterous Summer Vivipara. Grayish black; marked with numerous powdery areas; 
cleared specimens with numerous dark speckles and faint reticulations, antennal I, II, VI and 
distal portions of III, IV and V blackish to black; legs black except bases of femora and short 
area below knees on tibiae; cornicle and cauda black; cornicle often fully colored on only 
apical zone, thus appearing to vary markedly in size. Body length 5-6; across eyes .90; an- 
tenna about 2; hind tibia 4-5.1; rostrum attaining nearly to cornicles. Hairs slightly but dis- 
tinctly globate on entire dorsum, antennal I-IV, legs except ventral side of tarsi, but simple 
on antennal V and VI, cauda, anal plate and venter of body; on side of abdomen .03-.04 long. 
Alate Vivipara. Color and measurements same as in apterous vivipara except head and 
thorax which are black. 
Ovipara. Body length 4.6-5.5; antenna about 2; hind tibia slightly swollen and bearing 
numerous minute sensoria along most of its length. 
Collections. On stems of Pinus ponderosa var. sccpulorum. Colorado: near 
Sterling. Apterous viviparae Sept. 12 to Oct. 24, alate vivipara Oct. 24, oviparae 
Oct. 24; rare but extremely abundant where taken. 
Type: Granovsky Collection or U.S.N.M. 
Chief Distinguishing Characters. Slightly capitate hairs on body and ap- 
pendages, unusually large size of body (5-6), short stubby antennal VI, broken 
powdery covering on dorsum of body. 
Cinara atra (Gillette and Palmer) 
The Black Pinyon Pine Aphid 
Lachnus ater Gillette and Palmer, 1924:37. 
Cinara atra, Gillette and Palmer, 1931 :847. F 
Apterous Summer Vivipara. Young. Newborn, orange-yellow mottled with green, later 
olive-brown to reddish. Adult. Shining black or dark brown; antenna yellowish proximally on 
III, IV and V, dusky distally; tibiae yellowish on middle or blackish throughout. Body length 
