160 E. T. .CRESSON. 



75. suadus, n. sp. 



^ . — Small, slender, black ; orbits, face, clypeus, mandibles, palj)i, scape 

 beneath, annulus on flagellum, line on collar, tegulse, line before, short one 

 beneath, scutellums, spot behind posterior wings, a zigzag mark on posterior 

 face of metathorax, four anterior coxse, all the trochanters, four anterior legs 

 in front, basal half of posterior tibiae, their tarsi, and apical margin of first 

 and second abdominal segments, extending up on sides of second segment, all 

 yellowish- white; antennse nearly as long as the body, slender; abdomen deli- 

 cately punctured, postpetiole narrow, nearly smooth, gasthoeoeli subobsolete, 

 indicated by a pale spot; apex of abdomen piceous. Length .40 inch. 



Hah. — Canada. This species has remarkably long antennae. 



76. calitergus. Cress. Trans. Am. Ent. Soc. i, p. 299, 9 . 



Hah. — Maine. A robust dull black species, with stout antennae 

 and fusco-hyaline wings; annulus on flagellum, scutellum, band on 

 tibiae, band on three basal segments of abdomen and two spots on 

 apical segments yellowish-white ; coxal scopa distinct. Length 9 .50 

 inch. 



77. consignatus, Cress. Trans. Am. Ent. Soc. i, p. 298, % . 



Hah. — Mass., VV. Va. A dull black species, easily recognized by 

 the white markings of the abdomen which are as follows : a longi- 

 tudinal spot on each side of second and third segments and apical 

 margins of fourth and following segments except the last, broad on 

 the seventh; the apical margin of the third segment is sometimes nar- 

 rowly white ; wings clear, dusky at tips. Length %, .57 inch. 



78. albomarginatus, Cress. Trans. Am. Ent. Soc. i, p. 297, % . 

 Hah. — Mississippi. A black species with clear wings, and apical 



margin of all the segments more or less, white; the band on post- 

 petiole is broad, that on second segment narrow but entire, on the 

 three following segments the bands are still narrower and abbreviated 

 laterally, while on the two apical segments they are dilated into spots ; 

 face, clypeus, mouth, orbits, scape beneath, upper and anterior margins 

 of prothorax, tegulse, line beneath, stripe on pleura anteriorly, spot on 

 disc of mesothorax, scutellums, two spots on metathorax, four anterior 

 legs in front and band at base of posterior tibiae, all whitish. Length 

 % .50 inch. 



79. Blandii, Cress. Proc. Ent. Soc. Phil, iii, p. 188, % . 



Hah. — Pennsylvania. This pretty species is black, with the pleura, 

 metathorax and legs fulvous; the antennae are nearly as long as the 

 body, with a broad white annulus; the face, orbits, two short lines on 

 disc of mesothorax, a sutural line on each side, the tegulae and a line 

 beneath, anterior margin of the collar, a spot on each side of the meso- 



