SUBFAMILY APHINAE 209 
4. Cornicle shorter than 3.5 times length of rostral IV+V; cauda considerably 
COVeELeO sD Ysa DOOMIN al VAlble CDs 12 LO) eects seen eet es een ee ee xenotrichis 
Cornicle longer than 3.5 times length of rostral IV-+V; cauda not covered by 
BUCO TG 1g Vi Le 0 21, 1s) pene ein eee ere ei oe ie ak SRS oe a ee zavilla 
Pseudoepameibaphis essigi Knowlton and Smith 
Pseudoepameibaphis essigi Knowlton and Smith, 1938d:218. 
Apterous Summer Vivipara. Whitish yellow to orange-green, covered with numerous 
blunt to narrow fan-shaped or flattened funnel-shaped hairs; without dusky markings; appen- 
dages pale except tips of antenna and tarsi which are dusky. Body length .65-1; across eyes 
.27-.31; hind tibia .30-.37; antenna .42-.63; rostrum attaining barely to 3d coxa. Cauda taper- 
ing, rounded bearing 2 pairs of lateral hairs and a single preapical one. 
R. yy 
SoS ie 
.0\B—~.10 ols 
Hind 
2-17 Body hairs Femur 
Fig. 243. Pseudoepameibaphis essigi 
Collections. On Artemisia, usually tridentata. Colorado: Palisade. Utah: 
Throughout state. Apterous. viviparae June 17 to Sept. 24; not rare. 
Type. U.S.N.M. Paratypes, Knowlton, C. F. Smith and Colo. Agr. Exp: Sta. 
Collections. 
Chief Distinguishing Characters. Small size and especially short antennal 
III (much shorter than cornicle and hardly half the length of the unguis), short 
rostral IV+V (.08-.10) and rather heavy, blunt to funnel-shaped hairs. 
Genotype Pseudoepameibaphis glauca Gillette and Palmer 
Pseudoepameibaphis glauca Gillette and Palmer, 1932a:145 and 1932b:477. 
Alate Vivipara. Head and thorax brown; abdomen glaucous green; slightly powdery 
throughout; cauda pale; cornicle pale with dusky tip; appendages mostly pale, wing veins 
brown, rather heavy. Body length 1.2-1.5; hind tibia .70-.75; hind tarsal II .12; antenna 1.4, 
secondary sensoria flat. Cauda tapering, acute, bearing 2 pairs of lateral hairs and one 
preapical one; rostrum with portion beyond hairs needlelike in ventral aspect, attaining 2d 
coxa. Cornicle as in apterous vivipara. 
Apterous Summer Vivipara. Glaucous green; powdery; appendages as in alate vivipara. 
Body length 1-1.60; hind tibia .55-.70; antenna 1-1.1; rostrum attaining 3d coxa. Hairs slender, 
slightly. capitate; on body .05-.06 and conspicuous; on antenna very sparse, and incon- 
spicuous; on hind tibia .05. Cornicle slender, not as wide as hind tibia, slightly swollen on 
inner side of distal third, flange distinct and thin-rimmed, oblique. Cauda tapering bearing 
two pairs of lateral hairs and a single dorsal preapical one. Lateral and ocular tubercles not 
evident. Tibiae with terminal pad not evident. 
Orig! 244, Reemioenmicinic: glauca 
Ovipara. Apterous. Dusky olive-brown tinged with yellow where eggs show through 
body wall; powdery; appendages sordid yellow, with tarsi and tips of tibiae also swollen 
portion of hind tibia black; cornicle pale brownish with black tip. Measurements same as in 
apterous vivipara. Hind tibia somewhat swollen on proximal third and bearing about 12 flat 
sensoria. 
Male. Apterous, but with vertex bearing median ocellus as in alate vivipara. Dark 
olive-brown to greenish, powdery; antenna blackish; otherwise same as ovipara. Body length 
.80; hind tibia .72; antenna 1.50; cornicle .15. 
