THE CANADIAN ENTOMOLOGIST. 155 



little lighter in colour than the rest of the body and the antennae are 

 slightly dusky at tip. Antennae longer than the body and placed on large 

 tubercles. 



Measurements : Length of body, 2.33 mm.; width, i mm. Length of 

 antennal segments, I, .ii ; II, .066 ; III, .4 ; IV, .;^t^ ; V, .38 ; VI, .154 ; 

 spur, .82 mm.; total length, 2.26 mm. Length of nectaries, .73 mm. 

 Length of cauda, .33 mm. 



Egg. — The eggs are deposited on the shoots at the base and on the 

 under side of the buds. No measurements of the eggs were secured. 

 They are very similar to other species in this group, although smaller than 

 one would expect for the size of the insect. When first deposited they 

 are light greenish yellow and later become deep shining black. 



Alate Male. — Collected on underside of leaves November 3rd, 19 11. 

 General colour light yellow. Head, thorax, legs and antennas dusky to 

 black, Two basal segments of antennae and basal half of femora yellow. 

 Abdomen with six transversal bands broken in half, four in front of base 

 of nectaries and two behind. Cauda of medium length, tapering and 

 blunt at the tip. Antennal tubercles large and very distinct, being 

 slightly gibbous on upper inner edge ; first antennal segment large and 

 strongly gibbous on inner side, second segment quite small in comparison. 

 The third, fourth and fifth antennal segments with an irregular row of 

 small widely separated circular sensoria on each segment. They vary 

 from 18 to 26 on each segment. 



Measurements : Length of body, 2.66 mm.; width, .9 mm. Length 

 of antennal segments, I, .135; II, .066; III, 1.02; IV, .8; V, .8; VI, 

 .198 ; spur, 1.29 mm.; total length, 4.299 mm. Length of wing, 5.95 mm. 

 Total wing expanse, 12.85 mm. Length of nectaries, 7 mm. Length of 

 Cauda, 3 mm. The penis of this form is easily forced out by a little 

 pressure on the abdomen. 



lilinoia inacrosiphum, n. sp. 

 First collected about Corvallis, Oregon, on Amelanchier alnifolia, 

 July 4, 191 1. Found in small colonies and not very plentiful. General 

 colour whitish yellow. The specific name macrosipJucm is applied on 

 account of the extremely long nectaries. In the very young these are as 

 long as the body, in the mature specimens they are 3^2 to ^3 the length of 

 the body. An effort was made to secure the winged forms of this species, 

 but none were found excepting the alate male of what is supposed to be 

 the same species collected on rose November 3, 1911, and on Amelanchier 



