THE MYCETOPHILID.-E. 149 



broad ; first longitudinal rudimentary ; second longitudinal not very 

 long ; upper fork of third passes much beyond the second, hind fork 



Fig. 33. — Wing of Difo/iiyra fasciala. 



ending at the tip of the wing ; fourth arising from the third nearer the 

 apex than the connection with the third and second ; the sixth (anal 

 vein) extends to the border. The larvas live in Boleii. This genus 

 seems to be doubtfully represented in Britain. There are only two 

 species, one of which is found in England. 



D. fasciata^ Mg. = irifasciata, Wtz. 



Yellow. Thorax with three brown stripes, the lateral pair shortened 

 in front ; a brown spot on the sides. Abdomen blackish-brown, 

 sutures and genitalia light brownish-yellow. Palpi brownish, the last 

 joint shorter than the other three. Antennas brown, yellow at the 

 base. Legs brownish, the femora yellow ; tarsi brown. Wings grayish, 

 with three brownish bands (transverse), one at the apex, one in the 

 centre, the third towards the base. ■ Length 2 to 3 lin. 



(Mycefobia, Mg. 

 (jENUS Flesiastina, Wtz. = -, Symmeriis, Wlk. 



\Ditomyia, Wlk. 



Head, thorax, and abdomen and legs as in Ditomyia ; palpi 

 4-jointed, the first joint small. Antenna; 17-jointed, basal joint 

 smaller than the others ; the last joint small. Eyes reniform ; ocelli 

 three, the middle one small. Wmgs as in Ditomyia. The larvas live 

 in Moleti and rotten wood. 



n , , i Ceroplatus flavus, Zett. 



P. annulata = - ^ , ^ 



I P. vittafa, Wlk.* 



Testaceous. Palpi tawny ; antenna; brown, testaceous at the base. 

 Thorax with three brown stripes, the middle one longest, broadest in 

 front. Abdomen with a brown dorsal stripe. Legs yellowish, tarsi 

 brown. Wings grayish-brown. This is a rare insect. 



* I believe vittata, Wlk., to be synonymous with annulata, Mg., and therefore 

 the same as Zetterstedt's Ceroplatiis Jlavus. 



