FAM. EMPIDID/E 371 
I2. GENUS PALZEOLEPTOPEZA, MEUNIER 
Palaeoleptopeza, Meunier, Ann. Sc. Nat. (Zool.) 9 ser. Vol. 7, p. 111 (1908). 
Characters. — Near Leflopeza but with spinose hind femora. 
Geographical distribution. 
I. P. gracilis, Meunier, Ann. Sc. Nat..(Zool.) g ser. Vol. 7, p. 91, 111, pl.7, Baltic Amber. 
f. 15, 16, pl. 8, f. 1-4 (1908). 
I3. GeNUS PALZEOPARAMESIA, MEUNIER 
Palaeoparamesia, Meunier, Ann. Soc. Sc. Bruxelles, Vol. 26, p. 98 (1902): Ann. Sc. Nat. (Zool.) 
9 ser. Vol. 7, p. 107 (1998). 
Characters. — It is impossible to tell to which division of Clinoecera, in the broad sense, this 
form belongs. 
Geographical distribution. 
1. P. Proosti, Meunier, Ann. Soc. Sc. Bruxelles, Vol. 26; p. 98, f. 3, 4(1902); Baltic Amber. 
Ann. Sc. Nat. (Zool.) 9 ser. Vol. 7, p. 90, 107 (1908). 
I4. GENUS PARATHALASSIELLA, MEUNIER 
Parathalassiella, Meunier, Ann. Sc. Nat. (Zool.) 9 ser. Vol. 7, p. 9o (1908). 
Characters. — Discal cell present, the fourth vein forked, claws and pulvilli long and robust, 
third joint of the antenne conical, the arista as long as the antenna. From this information alone it is 
impossible to determine the position of this fossil fly. Meunier was familiar with the figure of 
Parathalassius in the Entomological News, 1906, and located the genus near this form, but the furcate 
fourth vein indicates a very different insect. 
Geographical distribution. 
1. P. problematica, Meunier, Ann. Sc. Nat. (Zool.) 9 ser. Vol. 7, p. 9o, 106, Baltic Amber. 
pl. 6; 17, 185 pl. 7; f. 2 (1908). 
15. GENUS PROTCEDALEA, COCKERELL 
Protcoedalea, Cockerell, Proc. U. S. Nat. Mus. Vol. 57, p. 252 (1920). 
Characters. — A precurser of Gdalea and Amthalia, its ancestral traits evidenced by the ; 
lengthened first and second veins, narrow discal cell, oblique forking of the cubitus, the posterior branch 
of which squarely terminates the anal cell, simple legs, thorax only moderately gibbous, and large size, 
being over four mm. in length. Antenne short the last joint obpyriform, style indistinguishable, 
proboscis retracted, discal cell unusually long, fourth vein abbreviated, venter of the male with sparse 
long hairs, body black, wings dusky. 
Geographical distribution. 
1. P. brachystoma, Cockerell, Proc. U. S. Nat. Mus. Vol. 57, p. 252, f. 8 Eocene, Green River 
(1920). Shales, Colorado. 
