280 APHIDS OF THE ROCKY MOUNTAIN REGION 
Kakimia houghtonensis (Troop) 
Gooseberry Witch-broom Aphid 
Aphis houghtonensis Troop, 1906:59; Baker, 1919d:433 (desc. of all forms). 
Myzus houghtonensis, Davgs, 1919:232 and Plate 20 (drawing from type). 
Myzus (Kakimia) houghtonensis, Hottes and Frison, 1931a:338 (lectotype selected). 
Kakimia houghtonensis, Gillette and Palmer, 1934:164; Knowlton and Allen, 1939:168. 
Apterous Summer Vivipara. Pale yellow-green to straw-yellow; all appendages pale. 
Body length 1.3-1.7; hind tibia .85-.90; hind tarsal II .08; antenna 1.2-1.6; rostrum attaining 3d 
coxa. Hairs slightly capitate; on side of abdomen .05. Cornicle cylindrical to subvasiform, 
imbricated. Cauda parallel-sided to slightly spatulate, bearing 2 pairs of lateral hairs and 
one dorsal preapical one. 
ra 
(24-27) 
Md A a F 
Th 
Fig. 336. Kakimia houghtonensis 
Alate Vivipara. Head and thorax brown; abdomen pale green; antenna slightly dusky 
throughout; tibiae, cornicle and cauda pale. Measurements as in apterous vivipara except 
rostrum attaining only to 2d coxa. Hairs slightly capitate or blunt; on body .03; .02-.03 on 
antennal III; on hind tibia pointed. 
Collections. On terminal leaves of Ribes grossularia, curling them tightly. 
Colorado: Fort Collins. Utah: Logan. Apterous summer viviparae May 21 to 
Aug. 21, alate viviparae May 21 and June 20; rare. 
Lectotype. (Slide selected by Hottes and Frison) U.S.N.M. 
Chief Distinguishing Characters. Distortion of host plant (tightly curled 
leaves), relatively short unguis (shorter than 1.5 times III), small number of 
sensoria on III (not more than 8 in aptera or 26 in alate vivipara), rather short 
rostral IV-+V (not longer than .15) and short cornicle (not longer than .28 in 
apterous or .25 in alate vivipara). 
Kakimia polemonii (Gillette and Palmer) 
(Plate IV, 5-6) 
Myzus polemonii Gillette and Palmer, 1929b:471. 
Kakimia polemoni1, Gillette and Palmer, 1934:165. 
Apterous Summer Vivipara. Body length 3; hind tibia 2; hind tarsal II .09-.10; antenna 
2.90. Hairs slightly capitate; on body .05-.06 and fairly numerous; on antenna and hind 
tibia similar. Other characters as in alate vivipara. 
° 
fe} 2, ie 
‘ ; Seog ar: : Reeth) J 80) 
4 pt. W/v (.78) (sen. 30) (.38 (4 12) ( 
(ser.90) tne 
Alate Viu (45-857 
Apt.Viv. .80 
Fig. 337. Kakimia polemonii 
Alate Vivipara. Head and thorax dark brown to black; abdomen light to medium green, 
darker on dorsomedian portion; cauda and cornicle pale; antenna black throughout; legs 
brownish. Body length 2.60; hind tibia 2; antenna 3.60, sensoria tuberculate; rostrum attain- 
ing 2d coxa. Hairs slightly capitate; .025-.03 on body. Cornicle cylindrical to slightly swollen 
on distal half, faintly imbricated. Cauda tapering, bearing 2-3 pairs of lateral hairs and a 
single dorsal preapical one. 
