iqoq] American species of Scolionevirinae 265 



Polybates slossonae n. sp. 



Body black with all the legs entirely white ; the antennal furrows 

 punctiform below, longer than wide, hardly more than a prolongation 

 of the dorsal margin of the antennal fovea, the vertical portion of the 

 antennal furrows punctiform behind the lateral ocelli and extending 

 below the lateral ocelli for about the width of an ocellus; the post- 

 ocellar area fiat; the interocellar furrow distinct, broadly concave be- 

 hind; the ocellar basin strongly convex, very sHghtly depressed in 

 front of the median ocellus; the median fovea deep, punctiform, as 

 broad as long, situated just above and between the bases of the anten- 

 nae; the supraclypeal area uniformly, strongly, convexly elevated; the 

 antennae slender, the second segment much shorter than the first, 

 annular, the first and second segments together less than half the 

 length of the third, the third segment very slightly longer than the 

 fourth, the fourth, fifth and sixth subequal, the seventh, eighth, and 

 ninth subequal and slightly shorter than the sixth, the ninth with 

 straight sides uniformly rounded to a point at the middle of the apex, 

 all the segments hairy; the wings hyaline, the veins, including the 

 costa and the stigma, brownish; the front wings with the free part of 

 R, about twice as long as the free part of R5; the stigma over twice as 

 long as wide, its hind margin uniformly, convexly rounded from base 

 to apex; the posterior metatarsus three-fifths the length of all the 

 following segments together, the second segment slightly longer than 

 the third and one-third the length of the metatarsus; the saw-guides 

 straight above and below, converging to a bluntly rounded point at 

 apex. Length 3 mm. 



Habitat. — Franconia, New Hampshire. Named for its col- 

 lector, Mrs. Amiie Trumbull Slosson. Type in the collections of 

 Cornell University and paratype in the collections of the U. S. 

 National Museum. 



Metallus Forbes. 



Head transverse, the front not as broad as high; the inner 

 margin of the eyes uniformly convex, the eyes distinctly converg- 

 ing below; the clypeus squarely truncate, distinctly more than 

 half as wide at apex as at base; the antennal furrows obsolete 

 except adjacent to the antennal fovea and behind the lateral 

 ocelli; the antennae long and filiform, the second segment dis- 

 tinctly shorter than the first, wider than long, more or less annu- 

 lar, the first and second segments together distinctly^ shorter 

 than the third; the front wings with the free part of R^ and the 

 radial cross-vein not interstitial and distinctly inclined at differ- 

 ent angles; the free part of M^-I-Cui received distinctly before 

 the middle of the cell ist A-h 2nd 2nd A; media gently curved at 

 the point of separation of M1+2 and M3+., ; the radial sector almost 

 straight at base. Type, Metallus riihi Forbes. 



