NOTES ON DIPTERA. Z2y 



subtus fulvum : pedes flavi : alze subfuscce ; nervi fulvi, bene 

 determinate : hal teres flavi. (Corp. long. lin. l£; alar. lin. 2.) 



Summer and autumn ; in woods ; near London ; North 

 Wales. 



Ragas. Walker. 



Microphorae similis, at nervus longitudinalis apice ramidum 

 emittens. 



Sp. 1. Ra. unica. Mas et Fem. Atra, ptibescens, alw nigro- 

 fuscce, ad costam obscuriores, nervi nigri. (Corp. long. lin. 

 |—1; alar. lin. U—H.) 



June ; Isle of Wight. 



Atelestus. Walker. 



Collomyise et Platypezae similis, at alarum nervi aliter 

 collocati. 



Sp. 1. Ate. sylvicola. Mas et Fem. Nigra obscura, pubes- 

 cens, antennae pedes et halteres picea, alee fuscw, nervi obscu- 

 riores. (Corp. long. lin. f — 1 ; alar. lin. 1| — 1 j.) 



June ; New Forest ; Hampshire. 



Cyrtoma. Meigen. 



C atra, Meigen. Spring to autumn ; near London ; Wind- 

 sor Forest ; Hampshire ; Ireland ; Scotland. 



C melaena, Holiday. Spring and summer ; near London ; 

 Windsor Forest. 



Microphora. Macquart. 



M. velutinus, Macquart. Spring to autumn ; near London ; 



Windsor Forest; Isle of Wight. 

 M. crassipes, Macquart. Summer; near London; Isle of 



Wight. 



Trichina. Meigen. 

 T. flavipes, Meigen. Autumn; near London ; North Wales. 



NO. III. VOL. IV. H H 



