THE CANADIAN ENTOMOLOGIST. 13 



irregular, some branching, Y-like in form; regular dark rufous; 

 wings dusky hyaline, distinctly reddish, stigma and nervures red- 

 brown; second submarginal cell broad, receiving first recurrent 

 nervure just beyond the beginning of its last third; legs thinly 

 clothed with pale hair; abdomen almost entirely impunctate, 

 quite broad; apical plate about 170/x broad. 



Hab.— Hudson Bay. British Museum (44. 17). In Robert- 

 son's tables of Sphecodes this runs nearest to S. minor, which is a 

 larger and evidently difTerent species. In the table of Maine species 

 it runs to the group of S. dichrous, to which it is not closely allied. 

 In my table of allies of dichrous it runs to the very much larger 

 arroyantis. Superficially it is much like S. washingtoni Ckll., 

 but aside from other differences, the metathoracic area is much 

 larger than in ivashingtoni. It is a much larger species than 5. 

 cressoni, and has a broader. head. Among the species of the north- 

 west, it falls nearest to 5. patruelis Ckll. (formerly recorded in 

 error as minor), but patruelis has the front more coarsely punctured, 

 and area of metathorax with stronger, irregular (not radiating) 

 ruga?. It is quite different from 5. sulcatulus by the densely punc- 

 tured front, etc. The specimen has been in the British Museum 

 for G7 years. 



I take this opportunity to record two other interesting speci- 

 mens of Sphecodes belongiing to the British Museum. 



(1.) Sphecodes falcifer Fatton. Colorado (Cockerell). A com- 

 mon species of the Eastern United States, but new to Colorado, 

 comes from my old collection of 1887-1890. The material which 

 went to the British Museum was mostly in papers, and nearly all 

 came from Wet Mountain Valley. A statement of the exact 

 locality was furnished for each lot, either in a letter or on the box, 

 but unfortunately the data were only preserved when they accom- 

 panied the specimen itself, and all the rest were simply labelled 

 "Colorado (Cockerell)". It is nearly certain that all the specimens 

 labelled in this way were from Wet Mountain Valley. 



(2.) Sphecodes persimilis Lovell & Cockerell. Trenton Falls, 

 New York; from F. Smith's collection. The specimen (9) has 

 the junction of the first and second dorsal abdominal segments- 

 rather evidently depressed, to this extent slightly approaching 

 S. pecosensis. F. Smith, who owned the specimen, died in 1879, 

 but the species was not described until 1907. 



Anthidiiim ivallisi, n. sp. 

 9 . Length about 10 mm.; black with chrome yellow mark- 

 ings, those on face, consisting only of an oval spot on each side 

 touching upper part of clypeus, paler yellow; a large yellow spot 

 above each eye; mandibles, teguhc and thorax wholly without 

 yellow; antennae black; pubescence dull white, on vertex shining 



