NOTES ON DIPTERA. 229 



subtus fulvum : pedes flavi : alae subfuscte ; nervi fulvi, bene 

 determinati : halteres flavi. (Corp. long. lin. Ij ; alar. lin. 2.) 



Summer and autumn ; in woods ; near London ; North 

 Wales. 



Ragas. Walker. 



Microplioras similis, at nsrmis lonptudinulis apice ramulum 



emittem. 



Sp. 1. Ra. unica. Mas et Fem. Atra^ puhescens^ alw nigro- 

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

 1—1; alar. lin. 1|— 1^.) 



June ; Isle of Wight. 



Atelestus. Walker. 



Collomyiae et Platypezae similis, at alarum nervi aliter 



collocati. 



Sp. 1. Ate. sylvicola. Mas et Fem. Nigra ohscura, puhes- 

 cens, antenna! pedes et halteres picea, alee fuscw, nervi obsciir 

 riores. (Corp. long. lin. | — 1 ; alar. lin. \l — 1^.) 



June ; New Forest ; Hampshire. 



Cyrtoma. Meigen. 



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

 sor Forest ; Hampshire ; Ireland ; Scotland. 



C. melaena, HaUdag. 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 



