THE CANADIAN ENTOMOLOGIST 3 



5. Segment III of antenna considerably shorter than width of 

 head across the eyes; colour brownish yellcw with blackish 



markings fiahelhis (Sanb.) 



Segment III of antennae considerably longer than width of head 

 across the eyes; colour pale yellowish green with dusky 

 markings virginicus Baker. 



Saltusaphis americanus, n. sp. 



Apterous viviparous female. — General colour reddish yellow; 

 vertex dusky brown, which colour extends caudad on each side to 

 form two large dusky lateral areas on top of head ; a rather narrow 

 median area yellow. Thorax with a large, irregular, dark brown 

 patch on each side. Abdomen with similar lateral patches which 

 include the cornicles. Cauda dusky. Femora, proximal extremity 

 of the tibiae and the tarsi dusky brown. Eyes reddish brown. 

 Antennae brown with base of III yellowish. 



Length from vertex to tip of cauda 1.84 mm.; hind tibia 0.64 

 mm. Dorsum of body covered with hairs which are situated on 

 rather prominent tubercles. These hairs are about 0.05 mm. 

 long and somewhat expanded at their tips. Extremity of the 

 abdomen scarcely at all divided. Cauda and anal plate usual. 



The apterous forms of this species are similar in general ap- 

 pearance to those of flabellus Sanb., but are easily distinguished 

 from those of that species by the body hairs. 



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

 form and with similar markings, but these much fainter. Length 

 from vertex to tip of cauda 1.04 mm.; hind tibia 0.608 mm. Body 

 with ha"rs of about the same length as those* of the viviparous 

 form, but with them little, if at all, expanded at tips. 



Antennae with the following measurements: III, 0.48 mm.; 

 IV, 0.32 mm.; V, 0.32 mm.; VI, (0.128 + 0.256 mm.). Segments 

 very finely and closely imbricated; III, with 20 to 25 very small, 

 circular sensoria in an uneven row along the segment; IV, with 9 

 or 10; V, with about 9; VI, with sometimes one on the base of 

 segment beside the usual sensoria at the base of the unguis. 



Oviparous female. — Colour very similar to that of the vivi- 

 parous form, with the colours possibly darker. Length from 

 vertex to tip of cauda 1.6 mm.; antennae as follows: Segment III, 



