. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. BRUES: PARASITIC BYMENOPTERA. 99 coriaceous or rugulose, without traces of any sutures. Short, only as long as the thorax, elongate oval when seen from the side, the margin evenly rounded at the tip when seen from the side and rather pointed when seen from above. Wings hyaline, stigma large, light brown, venation almost effaced, but appar- ently identical with that of recent representatives of the genus. Type.—No. 2342, M. C. Z., Florissant, Col. (No. 2077, S. H. Scudder Coll.). Nos. 2343-2344, M. C. Z, Flori
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. BRUES: PARASITIC BYMENOPTERA. 99 coriaceous or rugulose, without traces of any sutures. Short, only as long as the thorax, elongate oval when seen from the side, the margin evenly rounded at the tip when seen from the side and rather pointed when seen from above. Wings hyaline, stigma large, light brown, venation almost effaced, but appar- ently identical with that of recent representatives of the genus. Type.—No. 2342, M. C. Z., Florissant, Col. (No. 2077, S. H. Scudder Coll.). Nos. 2343-2344, M. C. Z, Florissant, Col. (Nos. 1917 and 5236, S. H. Scudder Coll.) also belong to this species. The Scudder Collection also contains two specimens (No. 11,404, M. C. Z., No. 2345, and No. 13,815, M. C. Z., 234G) which I doubtfully refer to this species. Agathidinae. Serres, ('29) has recorded Agathis from Aix in the Lower Oligocene, and the Florissant beds have yielded the three species described below. Agathis Latreille. Key to the Florissant species of Agathis. 1. Second cubital cell (areola) small, strongly narrowTed above or triangular, species small, mm. 2. Areola large, scarcely narrowed above, its upper side longer than the first section of the radius, large species, 7 mm. A. saxatilis, sp. no v. 2. Areola triangular, touching the radius in a point, the second transverse cubitus hyaline, indistinct . A. velatus, sp. nov. Areola with a distinct upper side, although this is much shorter than the first section of the radius, second transverse cubitus fully colored A. juvenilis, sp. nov. Agathis saxatilis, sp. nov. (Fig. 82.) Length 7 mm. Probably dark colored or black. Antennae black, rather long and tapering, the joints near the base a little less than twice as long as thick, those toward the apex much smaller, but as long in proportion to their width. Surface of head smooth and polished. Thorax seen in dorsal view likewise shining, the sutures cren- ulate; metanotum with trace
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