G. C. DAVIS. 321 



shorter than fifth, and fifth shorter than third ; claws large. Abdo- 

 men of medium length ; petiole usually quite short and of medium 

 breadth, gradually widening toward apex. 



Antenufe with white anmilus : parapsidal grooves wanting. 



Posterior femora and coxte black anteiiiiatus Prov. 



Posterior femora and coxse rufous lioiiestiis Cress. 



Anteunse without pale antiulas. 



Scutellum pale yellow; thorax black; parapsidal grooves wanting. 



coinpo!>» n. sp. 

 Scutellum rufous; parapsidal grooves present. 

 Thorax with mesouotum rufous, sternum black. 



Head and basal segment of abdomen black notatti!^ n. sp. 



Head and basal segment of abdomen rufous seiiiiiiiger Prov. 



Thorax and abdomen pale, unicolor. 



Head black, face yellow Iiiteifrons Cress. 



Head color of thorax, face more or less yellow. . .caiialiciilRtuisi Prov. 



Alexeter aiiteiinatiis Prov. (Mesuleim). Faune Ent. Can. ii, 418. 



9 . — 9 mm. Black, with face, mouth-])arts, scape beneath, annulus on antennte, 

 tegulie, spot in front, scutellum and trochanters, pale yellow; legs ferruginous, 

 with coxse, femora and apex of tibise of hind legs, black ; four anterior coxte and 

 middle femora variable; abdomen rufous, petiole black except at apex; wings 

 subhyaliue, nervures and stigma brown ; no parapsiilal grooves on mesonotum ; 

 metanotum polished, without dorsal carinae ; body pilose. 



Four specimens from New Hampshire and Canada. 



Alexeter honestiis Cress. [Mesoleptns), Trans. Amer. Ent. Sac. ii, 98. 



9 % . — 6-8 mm. Ferruginous, with head (occasionally piceous to rufous), apex 

 of posterior tibise and more or less of thorax, black ; face, mouth-parts, scape 

 beneath, annulus on antennae, scutellum, tegulse, four anterior coxse, trochanters, 

 tibije and tarsi, yellowish white; antennse black, reddish brown above annulus; 

 wings hyaline, nervures and stigma brown : paraj.isidal grooves wanting; metano- 

 tum polished and without dorsal carina; body pilose. 



Twelve specimens from New Hampshire, Canada, New York, 

 New Jersey, Philadelphia and N. Illinois (Dr. Nason). Types, coll. 

 Amer. Ent. Soc. 



Alexeter compos n. sp. 



% . — t) mm. Black, with face, mouth-parts, scutellum, tegulse and spot iu front- 

 pale yellow; pectus and pleura, white: abdomen rufous, with petiole dusky; 

 bind legs rufous, with trochanters and an obscure annulus on tibife, white; tarsi 

 and apex of femora somewhat dusky, four anterior coxse and trochanters white; 

 femora, tibise and tarsi, j'ellow ; antennse ferruginous; wings hyaline, nervures 

 and stigma brown ; parapsidal grooves wanting, earinse on metanotum wanting; 

 abdomen polished, slender, depressed ; body pilose, thorax most so. 



One specimen, Canada (coll. Amer. Ent. Soc). 

 Alexeter uotatus n. sp. 



■J) . — 6 mm. Black, with mesonotum, antennse, abdominal segments 2-4 and 

 legs dark honey-yellow ; face, mouth-parts, tegulai and trochanters, pale yellow ; 



TRANS. .VM. ENT. SOC. XXIV. (41) DECEMBER, 1897. 



