264 



THE CANADIAN ENTOMOLOGIST 



outer sides are fine, parallel, horizontal lines. There are three or 

 four small teeth on the inner side of the claw groove. (Fig. 15, 

 1 and 2.) The maxillae are wide and have several scattered eleva- 

 tions with one larger one near the front. The male palpi are 



Fig. 15. — Gongylidium macrochelis. — 1, sternum, maxillae and mandibles of male; 2, side of 

 male; 3, male palpus, outer side. 



long, with both patella and tibia longer than wide. The tibia is 

 widened toward the end but has no large processes. (Fig. 15, 3.) 

 The tarsus is short and round and has a deep notch on the outer 

 side. The tarsal hook is of a complicated shape, shown in (Fig. 15, 

 3). The base is thickened and near it is a round tooth turned 

 toward the tibia. The end of the hook curves outward and reaches 

 back to the edge of the tarsus. 



Sulphur Mountain, Banff, N.B. Sanson. In April on snow 

 in company with Tmeticus armatus. 



Gongylidium unidentatum, n. sp. 



1.5 mm. long. Cephalothorax and abdomen gray and legs 

 pale. Eyes as in Tmeticus bidentatus. Mandibles without any 



Fig. 16. — Gongylidium unidentatum. — -1, male palpus, above; 2, male palpus, outer side; 3, 

 male palpus, inner side.  • 



