THE CANADIAN ENTOMOLOGIST 45 



Measui'cnioils.— iMnglh of hotly 3.74 mm. lAMi.iilh of aiiltMinul segments: 

 VII. 0.5 mm.; IV, 0.25 mm.; V, 0.27 mm.; VI, 0.145 mm. Total length 1.32 

 mm. Beak: III, 0.187 mm.; IV, 0.155 mm.; V, 0.063 mm. Total length 2.1 

 mm. Length of hind tibiae 2.9 mm.; hind tarsus 0.33 mm. 



Alate viviparous female. — Specimens cleared before mounting and colour 

 characteristics not definite. Antennae with third, fourth and fifth segments 

 light at the base and dusky at the tip. First and second pair of legs with femora 

 dark, tibiae light coloured except at the ends. Hind legs with the femora and 

 tibiae dark except a yellowish area near the base. Third antennal segment 

 slightly shorter than the fourth and fifth together, sixth segment little more than 

 half as long as the fourth. Third segment with four to six round irregular 

 sized sensoria, four wuth two or three and five with two. Wings folded under 

 the specimens so that venation cannot be determined. Nectaries very large 

 and volcano-shaped. Tibiae long and strongly curved. Antennae and body 

 moderately set with medium short hairs, hind tibiae, thickly set with short 

 drooping hairs. 



Measurements. — Length of body 3.5 mm. Length of antennal segments: 

 III. 0.52 mm.; IV, 0.31 mm.; V, 0.31 mm.; VI, 0.187 mm. Total length 1.55 

 mm. Beak: III, 0.25 mm.; IV, 0.21 mm.; V, 0.063 mm. Total length 2.8 mm. 

 Length of hind tibiae 2.8 mm. ; hind tarsus 0.35 mm. 



Lachniella montanensis, new species. 



From material sent to me by Mr. J. R. Parker, of the Montana Agricul- 

 tural College. Two slides, one containing specimens collected by F. C. Bishop 

 at Florence, Montana, July 2, 1914, on Pine and a second containing specimens 

 collected by Mr. Parker at Bozeman, Montana, June 25, 1915, on Pinus laricis. 

 Types in writer's collection. 



Apterous viviparous female. — Antennae with segments three, four and five 

 yellowish at the base and dusky at the tip, sixth segment completely dusky. 

 Legs completely black except a small section at the base of the femora and 

 light areas near the base of the tibiae. This area is a little longer on the front 

 tibiae. Nectaries dusky black broken with light patches about the base. 



Third antennal segment longer than segments four and five together, 

 fourth almost equal to five and six about one-half as long as four. Third seg- 

 ment without sensoria, fourth with one or two and fifth with three. Nectaries 

 large and volcano-shaped, cauda angular. Antennae and body moderately 

 hairy, legs, abundantly set with short and drooping hairs. Hind legs strongly 

 curved. 



Measurements. — Length of body 4 mm. Length of antennal segments: 

 III, 0.58 mm.; IV, 0.27 mm.; V, 0.27 mm.; VI, 0.15 mm. Total length 1.46 

 mm. Rostrum: III, 0.31 mm.; IV, 0.31 mm.; V, 0.1 mm. Total length 2.39 

 mm. Length of hind tibiai 2.9 mm. Length of hind tarsus 0.27 mm. 



Alate viviparous female. — Antennae dusky to deep black with light areas at 

 the base of third and fourth segments. Legs as in the apterous forms except 

 that the light areas on the tibiae are less prominent. Nectaries similar to those 

 of the apterous forms. Third antennal segment approximately efjual in length 

 to the fourth and fifth segments together. The two latter being approxi- 

 mately equal in length to the fourth and fifth segments together. The two 

 latter being approximately equal in length. Sixth segment about one-half as 



