THE CANADIAN ENTOMOLOGIST 



of the antennae are present on the specimen. These measure as 

 follows: 1, 0.112 mm.; II, 0.064 mm.; Ill, 0.608 mm.; IV, 0,304 

 mm. Hind tibia 0.592 mm., hind tarsus 0.144 mm. 



Sallusaphis virginicus, n. sp. 



A late viviparous female. — General colour yellowish, marked with 

 dark brown ; head with smoky to black background and median 

 yellowish stripe; eyes dark reddish brown. Prothorax similarly 

 marked. Thorax yellow with dark brown lobes; abdomen yellow with 

 lateral row of dark brown or black areas, and with a large, longi- 

 tudinal, central area of the same colour; antennae almost uniform 

 dusky. Legs dusky, lighter at the joints, cornicles included on 

 each side within one of the lateral dusky areas. Stigma and wing 

 veins smoky, veins slightly bordered with dusky colour. 



Length from vertex to tip of cauda 1.44 mm. Antennae as 

 follows: III, 0.432 mm.; IV, 0.304 mm.; V, 0.288 mm.; VI, (0.192 

 mm. + 0.176 mm.). All segments very minutely and closely imbri- 

 cated. Segment III, with 9 or 10 circular to oval sensoria on the 

 basal two-thirds of the segment in an uneven row^ Hind tibiae 

 0.688 mm.; hind tarsus 0.112 mm. Fore wing 2.16 mm. long by 

 0.64 mm. wide. Media distinctly angled. Cornicles very shallow 

 and small. Abdomen densely covered wuth minute projections. 



Apterous viviparous fe?nale. — General colour yellowish green. 

 Head unmarked, eyes reddish brown. Body almost uniform 

 yellowish in some specimens, while in others faint, longitudinal, 

 dusky lines are present, extending from the head to tip of abdomen. 

 Antennae with the basal portion of segment III yellowish, the re- 

 mainder dusky to black. Legs uniform yellowish or with light 

 dusky areas near the distal extremities of the femora and with the 

 tarsi dusky. 



Length from vertex to tip of cauda 2.16 mm.; width across 

 abdomen 0.672 mm., vertex somewhat conical; antennae as follows: 

 III, 0.464 mm.; IV, 0.336 mm.; V, 0.288 mm.; VI, (0.208 mm.-f 0.16 

 mm.). Hind tibiae, 0.672 mm.; hind tarsus, 0.128 mm.; entire 

 dorsum covered with small, mushroom or fan-like hairs. Posterior 

 extremity of abdomen scarcely indented. 



Apterous male. — General colour similar to that of the apterous 

 viviparous female, but with very little of a yellow tint. Segments 



