DRYOMYZA. 163 



vein upright, hardly curved inward, parted by twice its length from 

 the prsebrachial transverse, and by half its length from the border. 

 Halteres very pale yellow. Legs testaceous. 

 Generally distributed. (E. S. I.) 



The followiug additional species of the two preceding genera 

 have been recorded as British : — 



Genus IX. HETEROMYZA. 



Heteromyza, Fal. Heterom. 2 (1820) ; Meig. ; Mcq. ; Zett. 



Corpus oblongum. Antennarum articuUis secundus brevis ; tertius ro- 

 tundm, secundo paullo longior. Alarum vena costalis spinis nullis. 

 Body oblong. Antennes not reaching the epistoma; second joint 



short ; third round, a little longer than the second; costal vein armed 



icith spines. 



1. flava, Meig. Zw. vi. 46. 2 (1830). Fulva, capite flavo, palpis 

 testaceis apice fuscis, antennis fuscis basi subtusque flavis, alis sublim- 

 pidis, costa apice venaque discali transversa subfuscis, pedibus testaceis. 

 Long. 3 ; alar. 6 lin. 



Tawny. Head yellow. Palpi testaceous, with brown tips. An- 

 tennae tawny ; third joint brown above ; sixth black, very minutely 

 pubescent. Wings nearly limpid, clouded with brown in frout, at the 

 tips, and about the discal ti'ansverse vein ; cubital and praebrachial 

 veins slightly diverging between the transverse veins, almost parallel 

 from the discal transverse to the border ; discal transverse vein indis- 

 tinctly undulating, almost upright, parted by nearly twice its length 

 from the praebrachial transverse and from the border. Halteres and 

 legs testaceous. 



Not common. (S.) 



Genus X. DRYOM'irZA. 



Dryomyza, Fal. Sciom. 16 (1820); Meig.; Mcq.; Zett. Dryope, 

 Dcsv. 



Corpus elongatum, sublineare, nitens, breve. Antennarum articulus 



