. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 68 bulletin: museum of comparative zoology. Type.—No. 2242, M. C. Z., Florissant, Col. (No. 11,927, S. H. Scudder Coll.). Other specimens in the Museum of Comparative Zoology are:—Nos. 2243-2249, Florissant, Col. (Nos. 2138, 4795, 8086, 9043, 11,471, 14,974 and 14,983, S. H. Scudder Coll.). Professor Cockerell also sent me a well-preserved specimen with reverse collected at Station 17. There seems to be no representative of the tribe Ophionini at Florissant, nor have any been discovered at Oeningen or Radoboj. Serres
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 68 bulletin: museum of comparative zoology. Type.—No. 2242, M. C. Z., Florissant, Col. (No. 11,927, S. H. Scudder Coll.). Other specimens in the Museum of Comparative Zoology are:—Nos. 2243-2249, Florissant, Col. (Nos. 2138, 4795, 8086, 9043, 11,471, 14,974 and 14,983, S. H. Scudder Coll.). Professor Cockerell also sent me a well-preserved specimen with reverse collected at Station 17. There seems to be no representative of the tribe Ophionini at Florissant, nor have any been discovered at Oeningen or Radoboj. Serres ('29), however, has recorded the occurrence of Ophion in the Lower Oligocene at Aix. No representative of the tribe Nototrachini has been found in the fossil state. Its distinguishing character of a single tibial spur on the middle leg is one that can scarcely ever be made out in the fossil, so that its confusion with the preceding tribe must inevitably occur in palaeontological work. In Europe the genus Anomalon has been recognized at two places, one species described and figured by Heer ('49) from the Upper Miocene at Oeningen as Anomalon protogaeum which very evidently belongs to the Anomalini although its position in the genus Anomalon, s. str. is not so certain, and Anomalon sp. by Serres at Aix in the Lower Oligocene which its describer compares with A. variegatum, supposedly a recent species, but one which I have not been able to locate. In the present collections from Florissant, there are six easily recog- nized species of Anomalini, three belonging to Anomalon, one to Barylypa, one to Exochilum, and still another to Labrorychus. Labrorychus latens, sp. now (Fig. 51.) Probably a female. Length mm. Color apparently brownish or rufous with the dorsal parts of the thorax darker. Wings hyaline; head and thorax not particularly well preserved, the meta- thorax roughly rngose- reticulate, rather gently declivous behind. First two segments of abdomen long and slender
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