32 APHIDS OF THE ROCKY MOUNTAIN REGION 
unguis unusually stout; hind tibia 1.75; rostrum attaining abdominal VII. Hairs on body 
minute, .01-.02 long, sparse; on hind tibia about half as long as the diameter of tibia. Ocular 
tubercle plainly evident. 
Alate Vivipara. Same in color and measurements as apterous vivipara. Secondary 
sensoria flat, irregular in size. 
Ovipara. Apterous. Same as summer vivipara (tip of abdomen not covered with pul- 
verulence), except hind tibia which though not perceptibly swollen is covered throughout 
with numerous flat sensoria. 
Male. Alate. Color same as alate vivipara. Body length 2; hind tibia 1.20; antenna 1, 
sensoria tuberculate and numerous on III, IV and V. 
Collections. On Pinus ponderosa var. scopulorum, on twigs at bases of 
needles; solitary or in small colonies. Colorado: Rocky Mountain National Park, 
Big Thompson Canyon, Log Cabin, foothills near Fort Collins, Bellvue and 
Denver. Fundatrices May 11, apterous summer viviparae May 25 to Aug. 20, 
alate viviparae June 25 to Aug. 20, sexuales Sept. 10 to Oct. 22; rather common. 
Type. U.S.N.M., No. 41965. Paratypes, Colo. Agr. Exp. Sta. Collection. 
Metatypes, Hille Ris Lambers Collection. 
Chief Distinguishing Characters. Black body, lack of pulverulence, short 
hairs especially on body and heavy nearly cylindrical unguis, length of hind 
tibia (1.5-1.7), length of body (about 3), lack of pulverulence on tip of abdomen 
of ovipara and length of rostral IV (.24-.30). 
Cinara hottesi (Gillette and Palmer) 
The Yellow-legged Spruce Aphid 
Fig. 25. Cinara hottesi 
Lachnus hottesi Gillette and Palmer, 1924:22; Knowlton, 1930:156. 
Cinara hottesi, Gillette and Palmer, 1931:857. 
Fundatrix. Same as apterous summer vivipara. 
Apterous Summer Vivipara. Bluish to brownish black; without pulverulence; legs con- 
spicuously yellow, with only tarsi and tips of tibiae black; rostral III, IV and V, cornicle, 
cauda, anal and genital plates black. Body length 2.8-3.5; hind tibia 1.7-2.5; antenna 1.55-1.6; 
rostrum attaining tip of abdomen. Hairs fine; on hind tibia slightly exceeding diameter of 
tibia; on body, cornicle and III .10, twice as long as diameter of III. 
Alate Vivipara. Same in color and measurements as aptera. 
Collections. On Picea engelmanni, on bark of young limbs. Colorado: 
Rocky Mountain National Park, Eldora, Pingree Park and Rabbit Ears Pass. 
Utah: Logan and Logan Canyon. Idaho: Immigration Canyon. Fundatrices 
June 13 (alt. about 9,000), apterous summer viviparae June 24 to Aug. 21, alate 
viviparae* July 17; rare. 
Type. U.S.N.M., No. 41959. Paratypes, Colo. Agr. Exp. Sta. Collection. 
Chief Distinguishing Characters. Black body without pulverulence, mod- 
erately long tibial hairs (.08-.10) and long rostral IV (.26-.27), almost equal to 
hind tarsal II. 
*Reared in insectary from fundatrices. 
