COCKERELL: FOSSIL HYMENOPTERA FROM FLORISSANT. 53 



800, at base 300. Hind wings with cubital nervure inserted a short distance 

 beyond (apicad of) t. m. 



Type. — No. 2023, Mus. Comp. Zool. Florissant, Col. (No. 8647, S. H. 

 Scudder Coll.). Easily known from H. scudderi by its larger size. The spec- 

 imen shows several venational characters which were not preserved in II. scud- 

 deri, and they confirm the generic reference. 



Hemipogonius scudderi, sp. nov. 



Slender, length about 10| mm. ; antennae 5£ mm., the scape thickened ; width of 

 head 2 mm.; length of anterior wing about 6£ ; length of thorax almost 3£ ; of 

 hind tibia and tarsus about 7 ; hind spurs large. Wings hairy ; stigma distinct ; 

 marginal cell sharply pointed on costa, its length and that of first s. m. the same, 

 1575 /x ; greatest width of marginal cell only 405 /x ; second s. m. pentagonal, broad, 

 receiving first r. n. a little beyond its middle ; length of second s. m. on marginal 

 450 fi ; third s. m. larger than second, shaped as usual; b. n. about 120 /x basad of 

 t. m. ; t. m. 255 fx long, not at all oblique. Stigma dark, and a dark cloud in the region 

 of b. n. and below ; also a diffused brown cloud occupying marginal cell, the 

 second and third submarginals, and the third discoidal ; this region still shows 

 bright iridescent colors. Somewhat allied to the living H. alienatus (Smith), but 

 larger. The wings are shorter, and much more strongly clouded, than in II. fords 

 (Cresson) The 6utures of the antennal joints are black. 



Type. — No. 2024, Mus. Comp. Zool. Florissant, Col. (No. 8640, S. H. 

 Scudder Coll.). A beautifully preserved specimen. No. 10,813, S. H. Scudder 

 Coll., is the reverse of the same example. 



Ceropalites, gen. nov. 



Abdomen very convex, the first point narrowed to a distinct petiole ; stigma very 

 well-developed, elongate, lanceolate ; subcostal nervure quite widely separated 

 from costa; first discoidal cell very narrow, the part of the basal nervure bounding 

 it being less than half as long as the part bounding first submarginal ; b. n. passing 

 only just basad of t. m. ; marginal cell large and elongate, probably pointed; 

 antennae long. 



Ceropalites infelix, sp. nov. 



Length 13 mm. ; as preserved, entirely light reddish-brown, probably red in life ; 

 wings hyaline, with the apical margin broadly dusky ; stigma dark, with a brown- 

 ish spot immediately below it ; length of anterior wing 10 mm. ; of abdomen 

 7; height of abdomen (dorso-ventral) 3; length of thorax anterior to wings 1J 

 mm.; length of marginal cell over 4 mm. (the apex gone) ; of wing anterior to 

 stigma about 5| mm. ; length of stigma about 1500 fx; its breadth about 375; first 

 section of radial nervure, passing almost straight down from stigma to junction of 

 first t. c, about 450 /x long; width of marginal cell 1095 /x ; from first to second 

 t. c. on radial nervure about 1650 /* ; beginning of b. n. from stigma, 600 fx; dis. 

 tance of subcostal nervure from costa at this point, 300; first (upper) part of b. n. 

 about 1110 ix, second (lower) part 390; hind part of metathorax with some trans- 

 verse keels. 



