Handlirsch] „ , „ . _ 



CANADIAN FOSSIL INSECTS 109 



medial cross-vein as the latter is anterior to the branching of the 

 media. 



Fig. 12. — Penthetria elatior, Handlirsch. 

 In addition to the wing, there is an abdomen preserved, which is 

 about 9°™ in length and from 4 to 5"™ in width. There are also a 

 few fragments of legs, indicating that these organs were moderately 

 long and relatively slender. 



Penthetria reducta, sp. nov. Fig. 13. 

 Locality: Horsefly mine— (July 20, 1906. L.M.L.). 



Fig. 13. — Penthetria redvcta, Handlirsch. 



A wing 8- 5™" in length, with fairly straight anterior border and 

 arcuate posterior margin. The breadth compared to the length is as 

 l:2-7. The radius extends seven-tenths the length of the wing; its 

 sector originates at about the first third of the length of the wing, 

 bifurcates at exactly half its own length, and is very markedly sig- 

 moid in curvature. The anterior branch is long, and fuses in the 

 margin at the first third of the distance between the radius and the 

 posterior branch of the sector. The radiomedial cross-vein is situated 

 about at the termination of the middle third of the distance between 

 the origin and bifurcation of the sector, immediately below the 

 middle of the wing. The media dichotomizes quite a distance 

 posterior to the centre of the wing, its branches being distinctly 

 divergent. The cubitus bifurcates at one-third the length of the 

 wing, and its posterior member proceeds- in a strong curve to the 

 lower margin, which it meets at half the length of the wing. The 



