THE CANADIAN ENTOMOLOGIST • 313 



ventral segment scarcely projects beyond last dorsal, last 

 dorsal without golden pubescence underneath black hairs, 

 sting stout, black- 



lOQi /(Bderalis Sm. {nitida Cr.) 



Ont., Ottawa, 8, VI. 

 6. Segments 1 to 3 with complete yellow bands, segments 4 and 5 

 with narrow bands, some black hairs on vertex and pleura, 

 length 6 mm. 



(subg Chelynia) , Ste. 1065. 



Shawnigan, Vancouver Island, 8, VII. 

 No pale markings, head smaller, narrower than thorax, face 

 much longer than broad, skin dark metallic blue-green, in- 

 cluding legs; whole insect, including underside of abdomen, 

 sparingly clothed with short black hair; margin of 6th dorsal 

 segment reflexed. 



Pavostelis (n. subg.) 1066 montana Cr. 



Banff, Lethbridge, Alta., VI. 



Males. 



1. A pale spot above each eye and pale markings on inner margins 



of eye, surface of ventral segment without groove or ridge, 

 four spots on segments 1 and 2, and two on 3 and 4; whole 

 insect strongly punctured all over; length 4^/2 mm. 



subg Stelidium Robt., 1055, ontariana Sla. 



(? — trypetinum Robt.) 

 Eethesda, Ont., 15, VIII. 



One specimen, Dr. Brodie, 1892. 

 Head without pale markings 2. 



2. Second recurrent nervure received at' or beyond apex of second 



submarginal cell, 3rd ventral segment depressed in centre, 

 generally a small pale spot on side of segments 1 and 2, often 

 two small spots or a line on side of segments 3 and 4, segmicnt 

 5 sometimes all black, abdomen so closely punctured as to be 

 rather dull; length 3 to 4 mm. 



subg Microstelis A nc t . 3. 



Second recurrent nervure usually received before the apex of 

 second submarginal cell, abdom.en with pale bands, often 

 interrupted in centre, 

 subg Chelynia Prov. 4. 



