Docombor, 1875 ] ),}.5 



Cr. ciiHYZOZTGOS, W. — This well-knowu European species wiis, I 

 tliiiik, the commonest of the DoUchopodidce in the Cambridgeshire 

 Fens last July ; scores might be seen in every little roadside ditch. 

 The pretty ringed black and white front tarsi, the yellow antennse and 

 face, and the dark hind tibije, easily distinguish it. The great abun- 

 dance of this species (never previously recorded as British), and of G. 

 gracilis^ only known to lialiday from specimens in Curtis's col- 

 lection labelled Tlietford in Norfolk, induces me to think that nobody 

 has ever previously collected Diptera in the Fens. 



G. ASSiMiLis, Sta>g. — This little species occurred tolerably freely 

 in a marshy spot in an old quarry near Upware. 



Tachttrechus >'OTATUs,Stan. — I fancy some mistake has occurred 

 in the 'Insecta Britannica' with regard to the localities of the Tacliy- 

 trechi. T. notatus, which is there apparently considered the com- 

 monest, I have captured at Aberdeen, Braemar, and Fawley. 



T. coNSOBRixus, "Wlk. — This is recorded as only occiirring in 

 Mr. Ilaliday's collection from " Moory uplands of Wicklow ;" I have, 

 however, caught it in abundance on the muddy sides of ponds near 

 Lyndhurst and Fawley, and also met with it one day at Braemar. The 

 third British species, T. insir/nis, Stan., I have not yet met with, while 

 , T. mnmohatcs, not having yet been found anywhere in Britain, is better 

 omitted from our lists. 



Oethochile nigeocjeeulea, Ltr. — I have found this rare species 

 at Lee and Leigh. 



HypopnTLLrs ceetifeh, AVlk. — I cauglit this sjjocies abundantly 

 on stones in a stream close to Penzance, and also near Truro. 



Anepsius flaviventbis, Mg. — The New Forest seems to be the 

 chief home of this insect, as I have met with it there nearly every 

 summer, and sometimes in abundance ; I have also a specimen from 

 W^eybridgo. 



ARaxBA COXFINIS, Zctt. — I caught a male of this at the Crystal 

 Palace on June lith, 18G7. 



SY>TonMON' Zelleri, Lw. — Two females, cfinght at Landport, 

 near Lewes, were so named by Loew, but I consider identifications 

 from females cnly very uncertain. 



S. DE^TicULAiUs, Zctt. — 1 found this species abundant In the 



