DUEHAM DIPTERA. 123 



XXIII. 212. 

 212. Stilpon, Lw. 



1 (2). Wings with only a slight shading. V.I. very short. 



V.2. ending in the costa before the middle of the 

 wing. (n 18. graminum, Fin.) 



2 (1). Wings with a distinct brown band (V. 11). 



(11 19. lunata, Wlk.) 



213. Tachypeza, Mg., and 214. Tachista, Lw. 

 Life history unknown. 



1 (2) (3). Wings clouded along the veins. 



(1120. Tachypeza nubila, Mg.) 



2 (1) (3). Wings with only one dark band, or all brownish 



except the clear tip. 



( 1 1 2 1 . Tachypeza fuscipennis, Fin.) 



3 (1) (2). Wings with two dark bands. 



4 (9). Bands of the wings not united. 



5 (8). Fore femora all yellow, or at most with a brown 



mark above. 



6 (7). Fore tibiae orange; all the tarsi pale yellow with 



brown rings. O.2., O.3., and 0.4. about equally 

 broad. ( II2 3- Tachista arrogans, L.) 



7 (6). Fore tibiae black ; all tarsi black except the metatarsi, 



which are orange. 0.3. broader than 0.2. or 

 O.4., the latter very narrow. 



{Tachista cimicoides, F.) 



8 (5). Fore femora yellow with a black ring near the base 



and another near the tip. 0.3. broader than O.2. 

 or 0.4. ( II2 5- Tachista annulimana, Mg.) 



9 (4). Bands of the wings united at the fore margin. O.2., 



O.3., and 0.4, about equally broad. 



10 (11). Bands of the wings very broad. Larger species, 



2 J mm. (1124. Tachista connexa, Mg.) 



11 (10). Clear space between the wing bands broader than 



the dark bands. Small species, i£ mm. 



(1127. mono, Ztt.) 



