THE CANADIAN ENTOMOLOGIST 43 



Beak: III, 0.166 mm.; IV, 0.166 mm.; V, 0.063 mm. Total length 1.56 mm.? 

 Length of hind til)ia,' 0.95 mm.; hind tarsus 0.21 mm. 



Alate viviparous female. — General colour black with white pruinose areas 

 producing a calico effect. Antennie cream-coloured at the base of the third 

 and fourth segments, other parts dusky and tip dusky black. Head dusky, 

 thorax black, wings dusky, veins with dusky borders. Legs with femora light 

 coloured at base and dusky toward the tip. Tibiae light coloured except slightly 

 at the base and a small part toward the tip. Tarsi black. Abdomen smoky, 

 with two rows of dorso-lateral black dots, and an extra dot on segment four. 

 Posterior segments almost black. Cauda black. Third antennal segment 

 shorter than the three distal segments, four and five approximately equal, and 

 six shorter than four. Beak reaching to base of nectaries. Nectaries cone- 

 shaped and rather large. Cauda and anal plate broadly rounded. 



Measurements. — Length of body 2 mm. Length of antennal segments: 

 III, 0.33 mm.; IV, 0.166 mm.; V, 0.18 mm.; VI, 0.1 mm. Total length 1.36 

 mm. Beak: III, 0.166 mm.; IV, 0.166 mm.; V, 0.083 mm. Total length 1.55 

 mm. Length of hind tibiae 1.46 mm. Hind tarsus 0.23 mm. 



Lachniella caudelli, new species. 

 From specimens collected by A. N. Caudell at Kaslo, B.C., July 7, 1903, 

 on spruce. One slide containing one alate and five apterous forms. This 

 species is sul^ciently distinct to warrant a description, although the material 

 at hand is not abundant. Types in U. S. Bureau of Entomology collection. 



Apterous viviparous female.— General colour cannot be determined. 

 Antennae light at the base growing darker toward the tip, last segment dusky. 

 First and second pair of legs light except at the joints, tarsi dusky. Hind legs 

 with femora light at base and dusky towards the distal end ; tibiae dusky except 

 a light area near the base. Tarsi dusky and long and slender. 



Antennae with third segment shorter than the fourth, fifth and sixth together. 

 Fourth and sixth approximately equal in length. Third antennal segment 

 without sensoria, fourth with one small, one or none and the fifth with one large 

 one near the distal end. Beak reaching to base of nectaries. Nectaries with 

 base quite fiat and about three times as wide as the opening. Opening pro- 

 portionately larger than the base. Abdomen with two irregular rows of black 

 spots dorsolaterally placed, and with two rows of five oblong spots which appear 

 to be glands. These spots are distinct on two individuals but their structure is 

 obscured by the balsam. Cauda broadly rounded and anal plate wide and 

 dished. 



Measurements. — Length of body 2.42 mm. Length of antennal segments: 

 III, 0.63 mm.; IV, 0.166 mm.; V, 0.25 mm.; VI, 0.19 mm. Total length 1.28 

 mm. Length of beak: III, 0.23 mm.; IV, 0.18 mm.; V, 0.1 mm. Total length 

 1.76 mm. 



Alate viviparous female. — Antennae dusky throughout and each segment of 

 the same relative thickness. Third segment slightly longer than the fourth and 

 fifth together, the fourth and sixth approximately equal. Third segment with 

 five or six large sensoria, fourth with one or two and fifth with one very large, 

 and one small sensoria. 



The legs are generally dusky black with a slight yelhnvish area near the base 

 of the hind tibiae. Wings with the median vein having but a single fork. 



