THE CANADIAN ENTOMOLOGIST 19 



additional smaller one at the centre. The beak extends slightly beyond the 

 hind pair of coxa\ Nectaries large and volcano -shaped. Wing venation 

 typical for the genus. Hairs upstanding, long and thick, distinctly spine-like. 

 Measurements. — Length of body 3.25 mm. Length of antennal segments: 

 111. 0.04 mm.; IV, 0.31 mm.; V, 0.35 mm.; VI, 0.23 mm. Total length 1.7- 

 mm.? Beak: III, 0.27 mm.; IV, 0.23 mm.; V, 0.1 mm. Total length 2 mm. 

 Length of hind tii)ia 2.4 mm.; hind tarsus 0.25 and 0.37 mm. 



Lachniella thunbefgii, n. sp. 



Described from five slides containing a number of oviparous females and 

 one alate male. Three of the slides also contain apterous specimens of another 

 species. No description of the latter has been attempted. The following notes 

 from Mr. Theo. Pergande's records were furnished me by Mr. Baker. Types 

 in collection of U. S. Bureau of Entomology, 



Apterous oviparous female. — Specimens in balsam, colour cannot be 

 determined. Antennae in balsam clear except at tip, distal end of third and 

 fourth, and all of fifth and sixth antennal segments, deep brown, nearing black. 

 Legs wath knees dark brown, first and second pair with tibiae light in the middle 

 and dark at the ends. Hind tibiae with clear area extending only from near 

 base to one-third the entire length;' tarsi and other portions dark brown. Body, 

 legs and antennae with setaceous upstanding hairs. 



Antennae reaching to second pair of coxae. Third and fourth segments 

 with a single small, round sensoria near the distal end. Fifth with two large 

 sensoria toward the distal end. Nectaries bell-shaped and of medium size. 

 Anal plate bilobed. Hind tibiae with numerous small sensoria. 



Measurements. — Length of body 3.4 mm. Length of antennal segments: 

 HI, 0.46 mm.; IV, 0.21 mm.; V, 0.23 mm.; VI, 0.2 mm. Total length 1.25 

 mm. Length of beak 1.67 mm. Length of hind tibiae 2.23 mm. Length of 

 hind tarsus 0.29 mm. 



Alate Male. — Antennae black throughout. Front legs with femora yellowish 

 at the base and brownish black toward the knee, knee nearly black, tibiae light 

 brown, being darker at the base and at the tip, tarsi dusky brown to black. 

 Middle legs the same. Hind legs with tarsi, tibiae and distal two-thirds of femora 

 brownish black. Antennae long and stout, and the third, fourth and fifth seg- 

 ments with numerous raised sensoria of variable size. Wing venation as in 

 other species of this group. Nectaries appear to be much larger than in the 

 apterous forms and with a much wider cone-shaped base. 



Measurejnents. — Length of body from vertex to tip of abdomen, 2.25 mm. 

 Length of antennal segments: III, 0.7 mm.; IV, 0.29 mm.; V, 0.146 mm.; VI, 

 0.21 mm. Total length 1.7 mm. Length of beak 1.77 mm. Length of hind 

 tibiae 2.17 mm. Length of hind tarsi 0.31 mm. 



Lachniella vandykei, n. sp. 



From material collected at Hemphry, Washington, by E. C. Van Dyke 

 on Picea sp.. May 28, 1914. Original material in alcohol, descriptions from 

 balsam mounts. Types in writer's collection. 



Apterous viviparous female. — Antennae light toward the base and dusky 

 toward the tip. Legs light toward the basal portion and dusky otherwise. 

 Nectaries and cauda dusky to black. Antennae with the third segment shorter 



