72 THE CANADIAN ENTOMOLOGIST. 



1.20 mm.; Tibia, I., 1.25 mm., Cauda, 0.21 mm; Cornicles, 0.34mm.; 

 III., IV. and V. with numerous sensoria. Two specimens. 



Winged Viviparous Female. — Length, 2.56 mm.; width, 1.00 mm.; 

 antenna?, 2.75 mm., III., 0.74 mm., IV., 0.50 mm., V., 0.40 mm., VI., 

 o.r2 mm., VII., 0.84 mm.; Tibia, I., 1.10 mm., III., 1.66 mm.; Cauda, 

 0.28 mm.; Cornicles, 0.44 mm.: III., IV. and V. with numerous 

 sensoria. Five specimens. 



Apterous Viviparous Female. — Length, 2.7 mm.; width, 1.30 mm,; 

 antennae, 2.55 mm., III., 0.72 mm., IV., 0.47 mm., V., 0.33 mm., VI., 

 o.n mm., VII., 0.84 mm.; Cauda, 0.29 mm.; Cornicles, 0.53 mm.; 

 Rostrum extending to mesocoxa? ; two or three sensoria on III. Three 

 specimens. 



Myzus Fergaudii, n. sp. 



Winged Viviparous Female. (PI. III., 10., Fig. 5.) 



Wing expanse, 7 00 mm.; length, 1.69 (1.25-2.00) mm.; width, 0.71 

 (0.50-0.85) mm.; antenna?, 2.07 (1.60-2. 10) mm., III., 0.52 (0.40-0.60) 

 mm., IV., 0.43 (0.30-0.-J6) mm., V., 0.30 (0.24-0.34) mm., VI., 0.15 

 (0.14-0.16) mm., VII., 0.56 (0.42-0.62) mm.; Tibia, I., 0.96 (0.70-1. 10) 

 mm., II.. 0.94 mm., III., 1.28 (1.00-1.50) mm.; Cauda, 0.19 (0.15-0.23) 

 mm.; Cornicles, 0.36 (0.28-0.40) mm. 



FlG. 5. — Myzus Per andii, n. sp.: Antenna, Cauda and cornicle of 

 apterous viviparous female, 



• 



Head, antennae, thoracic dorsal, lateral, and ventral sclerites, distal 

 half of femora, tips of tibia, tarsi, and cornicles, black ; membrane of 

 thorax brownish, as are legs ; abdomen dirty white, marked with three 

 large lateral blackish spots in front of cornicles, a large dark spot 

 dorsally covering segments three, four, and five, with two lateral 

 branches on either side, segments six and seven dark, eight light with 

 small dark band, Cauda and ventral plates dark, eyes black ; small brown 

 ring at base of III. (antennal segment), 12 to 15 sensoria on III.; stigma 

 brown, slightly smoky. Twelve specimens. 



