22 G. C. DAVIS. 



the trochanters and four anterior coxiE, yellowish white. Abdomen beyond first 

 segment strongly compressed ; first segment black, densely punctured, second 

 segment entirely rufous ; third, fourth and fifth rufous, with black spot above ; 

 remaining segments black; venter rufous, except at tip. In one specimen the 

 pleurte have a rufous dash on them. 



From Walsh's description of the % , it differs only in having the whole clyjieus, 

 all coxpe and trochanters, line on mesonotum, extending into a hook in front, 

 yellowish white; antennae brown-black, with scape beneath yellowish; and ter- 

 minal third of segment two and all of segment three of the abdomen, rufous. 



jNIale not seen ; female described from two specimens sent me from 

 Algonquin, 111., by Dr. Nason, who has aided me greatly in finding 

 many of Walsh's species. Wliether these females belong with the 

 male type is somewhat doubtful, tliough ^jrobable. 



ZOOTREPHES Foerster. 

 Abdomen black, segments more or less margined with white. 



PleuriB and sternum honey-yellow frigi«lus Cr. 



Pleurs! and sternum black. 



Posterior tibife fulvous, black at tips ; segments of the abdomen with narrow 



inobscure yellow margins on segment 2 scapulattis Prov. 



Posterior tibige entirely fulvous, segments of abdomen with broad yellow 



margins iiiauclie n. sp. 



Abdomen with the segments more or less rufous. 



First segment of the abdomen longitudinally carinated with a groove between. 



Scutellum yellow sagiiiatus Prov. 



Scutellum black antennatus n. sp. 



First segment of abdomen even and oval. 

 Scutellum and base of abdominal segments black .icltiiennioiiicles Prov. 

 Scutellum black or reddish, segments 3 and 4 always rufous. 



inoutanus n. sp. 

 Scutellum yellow, segments 2 and 3 rufous cingulatuis Prov. 



Zootreplies frigidns Cr. (Bassus), Ti-ans. Amer. Ent. Soc. ii. 111, f ■ 



9 . — Length 5.5 mm. Black, with pleune, entire sternum and legs, except pos- 

 terior tibije and tarsi, honey-yellow; labrum, tegulse, base of the segments of 

 posterior tarsi, posterior tibije at base and a broad annulus in the centre, white. 

 Thorax and first abdominal segment strongly carinated ; the tip of the segment 

 shows some evidence of the cross suture. 



Only Mr. Cresson's type from Hudson Bay seen ; S not known. 



Zootreplies scapulatus Prov. (Bassus), Faune Ent. Can. ii, 798, 9. 



9 . — Length 6. mm. Black, robust, with mouth, large orbital lines in front, 

 tegulte, spot in front, spots above on mesonotum, spot on scutellum and front coxse, 

 yellowish white. Legs fulvous, with tips of posterior tibise and their tarsi fuscous. 

 Metathorax coarsely punctured, areolated, and aciculated in the large centrax 

 area. Abdomen compressed at the extremity, segments 1, 2 and 3 coarsely punc- 

 tured ; segment 2 with a nan-ow, rather unobscure, pale yellow line at tip. 



Provancher's type, collected at Cape Rouge (near Quebec), Can., 

 is the only specimen known to me. 



