THE CANADIAN ENTOMOLOGIST. 



XI 



reticulated. Cauda concolorous with abdomen, ensiform, sparsely 

 hairy, and about one-third the length of cornicles. 



Average measurements from specimens recently mounted on 

 slides in balsam: Length of body 2.23 mm., width 0.82 mm.; 

 length of wing 4.20 mm., width 1.66 mm.; length of middle tibia 

 2 mm., of hind tibia 2.48 mm., of hind tarsus 0.116 mm,, of cornicle 

 0.67 mm., of cauda 0.203 mm. 



Antennal measurements as follows: 



ANTENNAE SEGMENT NO. lm. 



* Extreme tip appears to be broken off. 



Wingless oviparous female. (PI. IV, figs. 19-20.) 



Colour of head and thoracic segments between pale cadmium 

 yellow and chrome yellow. Antennae blackish, excepting seg- 

 ments I and II, which are dusky, and extreme base of III, which 

 is pale; sparsely setose; filament of segment VI longest; 4 to 7 

 circular sensoria in a row on segment III and the usual distal one-" 

 on segments V and base of VI. Eyes dark red. Beak reaching to 

 coxae of second pair of legs. Femur pale, becoming dusky at tip; 

 tibia brownish, with the tip black; tarsus black. Hind tibiae en- 

 tirely black, conspicuously swollen, and bearing numerous (about 

 200 to 260) small, irregularly shaped and irregularly placed sensoria 

 on the basal three-quarters; the sensoria are closely placed and 



