THE CANADIAN ENTOMOLOGIST. 303 



Measurements : Length of body, 2. 84 mm.; width, 1.09 mm.; length 

 of wing, 3.65 mm.; width, i.i mm.; total wing expanse, 8.08 mm. Length 

 of antennal segments, I, .066; II, .11; III, .44; IV, .154; V, .198; 

 VI, .11 ; spur, .045 mm. ; total length, 1.123 mm. Length of nectaries,. 

 .064 mm. Length of cauda, .22 mm. 



The fall migrant was not secured. 



^SS-^'^yi'^S f^'^^cil^- — Collected on terminal shoots of above plants 

 Oct. 30, 1910, and Oct. 27, 191 1, along with the aUte males. General 

 colour brownish with ash-grey powder on body, and with two more or less 

 regular stripes down the back ; and with a wide brown stripe extending 

 across the body from one nectary to the other. At the base and above 

 the Cauda another transverse band is usually present. Antennae and legs,, 

 except tips, light brown ; other parts dusky to black. Body robust and 

 with large semi-conical nectaries which are brown in colour. Antennse- 

 and legs hairy ; antennae one-third the length of the body. 



Measurements: Length of body, 2.9 mm.; width, 1.7 mm. Length 

 of antennal segments, I, .066; II, .09; III, .35; IV, .176; V, .176 ; 

 VI, .11 ; spur, .045 mm.; total length, 1.013 mm. Length of nectaries, 

 .06 mm., and cauda, .35 mm. 



Alate male. — Collected on terminal shoots of host plant Oct. 30, 

 1910, and Oct. 27, 191 1, about Corvallis, Oregon. 



General colour: Head and thorax black with green abdomen. 

 Abdomen with a series of black, transverse, more or less distinct, bands. 

 Antennae yellow at base, dusky at tip. Femora and tibiae dusky at middle 

 to bhck at ends; tarsi black. Wings hyaline but with costa dark brown, 

 median vein and branches almost indistinct ; other veins dusky. Nectaries 

 slightly bell-shaped with a flanged opening. Third antennal segment about 

 equal in length to fourth and fifth segments and with about 30 to 39 visible 

 small circular sensoria. Fourth segment with 10 to 12 circular sensoria 

 which appear slightly larger than those on the third segment. Fifth with 

 about eight medium-sized, and one Uarge, visible sensoria at the distal 

 end. Sixth segment with one large and apparently six small sensoria at 

 base of spur. 



Measurements : Length of body, 2 mm ; width, .87 mm. Length of 

 wing, 3.87 mm.; width, 1.52 mm.; total expanse, 8.61 mm. Length of 

 antennal segments, I, .066 ; II, .11 ; III, .5 i ; IV, .242 ; V, .3 ; VI, .154 ; 

 spur, .066 mm.; total length, 1.448 mm. Length of nectaries, .045 mm.; 

 cauda, . 176 mm. '* 



Females along tips of needles, depositing from 5 to 8 eggs. 



