142 AN A ceo UNT OF BRITISH FIIES. 



cc. Wings unspotted 



unicolor^ Wlk. 

 servula, Wlk. 

 discolaria, Mg 

 conrisa, Wlk. 



P. marginata, Mg. 



This is a black shining species. Proboscis and palpi tawny. 

 Antennae a little longer than the thorax. Abdomen long and black, 

 with ferruginous markings in the ? . Legs testaceous ; tibice tawny, 

 tarsi brown. Wings yellowish-gray, clouded with gray towards the 

 tips and along the hind border, and with a slight brownish spot at the 

 base of the fourth longitudinal vein ; in the ? the discal brownish 

 spot almost obsolete. Length 3A to 5 lin. Not common ; found in 

 woods, especially hazel woods. 



I oc/iracea, Mg. 



This is a tawny species, with short and slender brown antenna;, 

 tawny at the base, as long as the thorax in the c^, shorter in the ? . 

 Thorax with dark longitudinal marks. Abdomen with a black band 

 on the fore-border of each segment ; hypopygium brown ; lamella; 

 and ovipositor yellow ; hairs on the body black. Legs testaceous ; 

 tarsi brown. Wings with a pale yellowish tinge, and with a grayish 

 sub-apical band, which is very obscure towards the hind border. 

 Length 3 to 3i lin. Common in July. 



F. concisa, Wlk. 



Black. Proboscis and palpi tawny. Antennge black, tawny at the 

 base. Pectus and sides of the thorax piceous. Posterior borders of 

 abdominal segment testaceous. Legs yellowish ; tarsi dark brown. 

 Wings grayish-yellow, unspotted. Length 2 lin. This seems to 

 be a rare species, described shortly by Walker. 



F. imicolor^ Wlk., is also black, with brownish wings, paler in the 

 disc towards the base, with black veins, ferruginous at the base. 

 Legs ferruginous, tarsi black. Length 3 lin. Rare. 



The other British species mentioned in the table are all, as far as 

 our scanty knowledge goes, uncommon. . Flavipes is, however, 

 recorded as i^ common at CUanville Wootton. This is a black 

 species, witn the hind borders of the abdominal segments testaceous. 

 Length i i to 2 lin. 



Atrata is a very rare species, appearing in July and August. 



