22 THE CANADIAN ENTOMOLOGIST 



Measurements. — Length of body 2.37 mm. Length of antennal segments: 

 III, 0.44 mm.; IV, 0.21 mm.; V, 0.23 mm.; VI, 0.166 mm. Total length 1.25 

 mm. Beak: III, 0.21 mm.; IV, 0.187 mm.; V, 0.063 mm. Total length 2.04 

 mm. Length of hind tibia 2.20 mm. Hind tarsus 0.31 mm. 



Alate viviparous female. — Colour of antennae and legs as in the apterous 

 form. Third antennal segment approximately equal in length to fourth. Third 

 antennal segment approximately equal in length to fourth. Third segment 

 with six to eight large, circular sensoria, fourth with two and fifth with two. 

 Nectaries extremely large. Beak extending to the base of the nectaries. Hairs 

 on legs, body and antennae fairly abundant and longer than those of other species 

 in this group. Those on the femora and at the base of the tibiae are not quite 

 as upstanding as with other species in this group. 



Measureme?ifs. — Length of body 2.39 mm. Length of antennal segments: 

 III, 0.46 mm.; IV, 0.21 mm.; V, 0.23 mm.; VI, 0.145 mm. Total length 1.28 

 mm. Beak: III, 0.21 mm.; IV, 0.187 mm.; V, 0.063 mm. Total length 2 mm. 

 Length of hind tibiae 2.08 mm. Hind tarsus 0.33 mm. 



Lachniella arizonica, n. sp. 



Descriptions made from eleven specimens on three slides. Specimens 

 collected on Pinus sp. at Williams, Arizona, June, 1901, by E. Q. Schwarz. 

 Types in U. S. Bureau of Entomology collection. 



Apterous viviparous female. — General colour characteristics cannot be 

 determined. Antennae with basal half of third segment light coloured, remaining 

 segments dusky to black. Legs black, except bases of femora, and a small 

 section of the tibiae near their bases. 



Antennae extending to the third pair of coxae, the third segment longer 

 than the fourth, fifth and sixth together. Third segment with one to three 

 small sensoria near the distal end. Nectaries large and with a wide, cone- 

 shaped base. This species is entirely different from all other lachnids I have 

 seen because the surface of the body is reticulated, and the spines on the antennae, 

 body and legs, except on the tarsi and caudal plate, have the appearance of being 

 capitate. 



Measurements. — Length of body 5 to 6 mm. Width 3 mm. Length of 

 antennal segments: III, 0.96 mm.; IV, 0.35 mm.; V, 0.27 mm.; VI, 0.17 mm. 

 Total of beak 1.7 mm. Length of hind tibiae 5.12 mm. 



Alate viviparous female. — Colour characteristics cannot be determined. 

 Dark and light coloration of antennae and legs as in the apterous forms. Antennae 

 reaching to base of third pair of coxae. Third segment about equal in length 

 to the fourth, fifth and sixth segments, and with from two to four irregular- 

 sized sensoria along the distal half. Fourth with two, and fifth normally with 

 two. Body docs not show reticulations as in apterous forms, but the hairs 

 are similar and are strongly spine-like. 



Measurements. — Length of body 5 to 6 mm. Length of antennal segments: 

 III, 0.9 mm.; IV, 0.39 mm.; V, 0.37 mm.; VI, 0.166 mm. Total length 1.98 

 mm. Length of beak 1.9 mm. Length of hind tibiae 5.2 mm. Cauda broad 

 and rounded at the tip. 



(To be continued.) 



