SUBFAMILY APHINAE 43 
Co. Utah: Aspen Grove, Mount Timpanogos, and Logan Canyon. Idaho: 
Emigration Canyon. Fundatrices May 15 to June 26, apterous summer viviparae 
June 8 to Aug. 26, alate viviparae June 20 to July 26, sexuales Sept. 12 to Oct. 
10, oviparae until Nov. 10; quite common. 
Type. U.S.N.M., No. 59322. Paratypes, Colo. Agr. Exp. Sta. and Essig 
Collections. 
Chief Distinguishing Characters. Rudimentary cornicle bases, short, droop- 
ing, numerous tibial hairs, length of rostral IV (.16) and dark brown body 
without median pale area. 
This species differs from the original description of Lachnus tazxifoliae 
Swain as follows: Length of body (greater than “2-2.08”), length of antennal 
segments (greater than the following: “III .23-.30, IV .10-.137, V .11-.146, VI 
.09-.12”) and length of hind tarsal II (greater than .21). Swain does not men- 
tion length of hairs. Swain’s cotypes (all that could be located) fail to agree 
with his description. C. pseudotaxifoliae differs from the above-mentioned 
cotypes as follows: Length of hind tarsal II (shorter than “.32-.34”), numerous 
short, drooping hairs on the hind tibia and length of tibial hairs (only half of 
12-.15). 
Cinara pseudotsugae (Wilson) 
(Plate I, 1-7) 
1.75 -].90 
Fig. 39. Cinara pseudotsugae 
Lachnus pseudotsugae Wilson, 1912b:302; Palmer, 1926:301. 
Cinara pseudotsugae, Gillette and Palmer, 1931:865. 
Fundatrix. Color as in summer vivipara or darker. Body length 3-3.5, robust; hind tibia 
1.9; otherwise as in apterous summer vivipara. 
Apterous Summer Vivipara. Pale translucent brown shading to whitish on mediodorsum 
of first four abdominal segments, a pair of dusky areas on all thoracic segments and abdom- 
inal I; slight powder on lateral areas of thoracic segments and abdominal IV and on most 
intersegmental lines; appendages pale yellowish with brownish on distal third to half of hind 
tibia and on entire tarsi. Older individuals darker and without evident powder. Body 3 by 2; 
hind tibia 2; antenna 1-1.1; cornicle hardly more than mere rim, mammiform base rudimentary 
or absent. Hairs semispinelike, somewhat sparse; on hind tibia length hardly equalling diam- 
eter of tibia. Rostrum attaining 2d or 3d coxa. 
Alate Vivipara. Same as aptera or with trace of greenish in two dorsolateral stripes; 
head and thorax brown. Hairs on hind tibia with length equalling 1-1.5 times diameter of 
tibia; on body finer, .04-.05 long; fore wing with media twice-branched. 
Ovipara. Same as apterous vivipara except abdomen posterior to cornicles where it is 
heavily pulverulent and hind tibia which though hardly swollen bears numerous sensoria. 
Male. Alate. Same as alate vivipara or abdomen pale sordid green with two darker 
green dorsolateral stripes. Body length 2.5; hind tibia 1.6. Otherwise similar to alate vivi- 
para. 
