SUBFAMILY APHINAE ay 
Type. Possibly U.S.N.M. 
Chief Distinguishing Characters. Rather light color of body and appendages 
and heavy flocculence, short legs, long erect hairs on appendages (3 times as 
long as diameter of segment bearing them), long hind tarsal II (about third of 
the length of hind tibia, as long as III), considerably swollen hind tibia of 
ovipara and short rostral IV (third of length of hind tarsal II). 
Cinara oregonensis (Wilson) 
The Pine Cone Aphid (Plate II, 7-12) 
Hd. & 
Apt viv. me Ss 
) 
Apt. 
_ Alate 
Hd.Ta. 
Fig. 31. Cinara oregonensis 
Lachnus oregonensis Wilson, 1915a:103; Palmer, 1926:311. 
Cinara oregonensis, Gillette and Palmer, 1931 :862. 
Fundatrix. Nymph. Newly hatched, deep flesh or cinnamon-rufous; head and two dorso- 
lateral lines on pronotum and dorsum of abdominal III to VI dusky brown; slightly pulver- 
ulent; appendages dark. Adult. Brick-red to red-sienna; shining; marked with dusky dorsal 
dashes on last two thoracic and abdominal segments I, VII and VIII; slightly pulverulent; 
appendages yellow-brown to dusky; cornicle somewhat dusky. Measurements as in apterous 
summer vivipara. 
Apterous Summer Vivipara. Nymph. Newborn, lemon-yellow, later, dusky yellow; 
slightly pulverulent. Adu/t. Light brick-red to ferruginous; shining; appendages pale to 
honey-yellow with knees, tips or distal two-thirds of length of tibiae, antennal VI and tips 
of III, IV and V, entire cornicle and tarsi dusky to blackish. Body length 2.5-3; hind tibia 
1.6-2; antenna .80-1.00; rostrum attaining to end of abdomen or beyond. Hairs fine, fairly 
numerous, erect; on tibia, length 1.5 times diameter of tibia; on body .05-.07 long. 
Alate Vivipara. Same in color and measurements as aptera. : 
Ovipara. Same as apterous summer vivipara, being distinguished from the latter only 
by the powdery tip covering dorsum of abdominal VII and VIII. Even the hind tibia shows 
no perceptible swelling or evident sensoria. 
Male. Apterous. Head dusky; body brick-red to brownish red; powdery; appendages 
dusky. Body length 1.50; antenna .70; rostrum about 1.5 times length of body. Hairs on hind 
tibia rather sparse, .07 in length, twice as long as diameter of tibia. 
Egg. Light yellowish brown or honey-yellow when first laid, later black and shining. 
Size 1.5 by .5. 
Collections. On Pinus contorta var. murrayana, rarely on Pinus ponderosa 
var. scopulorum, on young cones, the second generation nearly all acquiring 
wings and migrating to newly developed cones where sexuales develop and 
eggs are laid on underside and at bases of scales of cones. Colorado: Eldora, 
Bellvue foothills and Rocky Mountain National Park. Utah: Logan Canyon. 
Fundatrices May 13 (reared from eggs taken April 22), apterous summer 
viviparae June 16 to September 10 on same cones as fundatrices, alate viviparae 
June 5 to 25, sexuales Sept. 15 to Oct. 2 on new cones, eggs on new cones Sept. 
26 to April 22; apparently rare but abundant where occurring. Difficult to 
detect on account of the protective coloration unless their presence is betrayed 
by the attendant ants. 
Chief Distinguishing Characters. Habitat (among the scales of the cone), 
red-brown body, length of rostral 1V (.2) and length of tibial hairs (.09-.11, 
in aptera 1.5 times length of diameter of tibia). 
