DURHAM DIPTERA. 79 



XII. 122. 



3 (4) (5). Wings quite clear, without clouded spot, or general 



brown tinge. 



767. Trichocera hiemalis, Deg. 

 Very common in winter. 



4 (3) (5). Wings with a brown tinge, but without any clouded 



spot. 



768. Trichocera fuscata, Mg. 



Common at Bishop Auckland in winter. 



5 (3) (4). Wings clear without brown tinge, but with X.4. 



and sometimes X.5. clouded. 



769. Trichocera regelationis, L. 

 Very common in winter. 



I do not believe that there is any difference between hiemalis 

 and regelationis. Schiner's character of the place of X.5. is 

 not reliable. I have seen specimens that according to it were 

 hiemalis on one wing and regelationis on the other. 



125. Ula, Hal. 

 Larvae in fungi. 



774. Ula fiilosa, Schum. 



Stanhope, i $, 23-5-00; Harperley, 1 $, 9-6-00. 



126. Dicranota, Ztt. 

 Life history unknown. 



1 (2). V.4.a. not forked. (775- pavida, Hal.) 



2 (1). V.4.a. forked. 



776. Dicranota bimaculata, Schum. 

 Hesleden, 1 <£, 1 $, 23/24-4-01. 



127. Amalopis, Hal. 

 Life history unknown. 



1 (8). Blackish or greyish species. 



2 (7). Rather small species, the wings without any marks. 



3 (6). Antennae 16-jointed. 



