58 T D. A. Cocker ell — Descriptions of Tertiary Insects. 



very distinctly. The media turns downwards near its distal 

 end, and the first posterior cell is more widely open than in 

 Callimyia. This downward bend is to the apical corner of 

 the discal cell, which forms a somewhat acute though large 

 angle, and from that point onwards the media is directed 

 straight to the margin. (The margin and immediate vicinity 

 at this place are not visible.) This arrangement of the media, 

 etc. resembles that of Ocydromia (Empididse). Scudder's C. 

 torpor ata also has the very widely open first posterior cell. 



Leptis florissantina sp. nov. (Leptidae). 



A small, slender species, beautifully preserved, with expanded 

 wings. Length 8 mm ; wing 7 ; expanse 15 mm ; width of head 

 2 mm , of the abdomen 1-J-. Antennas not well preserved, but 

 the third joint seems to be large, much as in Hilarimorpha ; 

 I cannot see the styles. Eyes very widely separated above ; 

 head broader than long ; thorax small ; head and thorax black ; 

 wings hyaline, without spots, veins dark reddish-brown ; abdo- 

 men parallel-sided, a little broadened to the obtuse apex, the 

 basal two segments pallid, the others largely dark (perhaps 

 originally wholly dark). Venation as in Leptis / compared 

 with L. mystacea Macq. (Williston, N. A. Dipt., 3d ed., 

 p. 157) the following slight differences are found : 



(1.) Costa not or barely arched near base. 



(2.) Wings narrower. 



(3.) The second vein ends nearer apex of w T ing, beyond level 

 of middle of cell in forks of third. 



(4.) Bases of second and third posterior cells about half a 

 millimeter back of level of base of cell in forks of third vein. 



(5.) Anterior cross-vein (radio-medial cross-vein) nearer to 

 middle of discal cell. The anal cell is barely closed, just on the 

 margin of the wing ; there may be an inhnitesimally small 

 opening. 



Hob. — Florissant, in the Miocene shales, Station 13 B (S. A. 

 Roliwer, 1908). Four species of Leptis have been described 

 from amber. 



Tipula heeriana n.n. 



Tipula lineata Heer. Ins. Oen. II, p. 194, t. 15, f. 4 

 (1849). — Miocene of Radoboj (not T lineata Scopoli, Ent. 

 Cam., p. 320). 



Tipula lineata Heer, Scudder, Proc. Am. Phil. Soc, 1894, 

 p. 9. 



Limnophila meunieri n.n. 



Limnophila gracilis (Lw., as Tanysphyra, Scudder, Proc. 

 Am. Phil. Soc, 1894, p. 21 (nom. nud.) ; Meunier, Ac. Sc. 

 Nat. (9) iv, p. 382, t. 14, f. 9 (1906).— Baltic amber (not 

 L. gracilis Wiedemann, Auss. Zw. 1, p. 28). 



