Diptera 179 



day after a slight frost. It may be of interest to record, that 

 of the 55 species of Borboridae in the British List, no less 

 than 50 have been taken in, or within a mile of, the borders 

 of Cambridgeshire. 



Diptera have been but little collected* in the Southern 

 District, though there are one or two noteworthy species that 

 have been captured. Mr F. Jenkinson in his garden at Cam- 

 bridge has taken Agathamyia collini, Verr., which species 

 was described from specimens taken at Kirtling in this district, 

 and which has also been found in Herefordshire, the only 

 locality known at present outside Cambridgeshire ; he has also 

 taken Platypeza furcata, Fin., and P. dorsalis, Mg., the rare 

 Mallota cimbiciformis, Fin., of which there is a second speci- 

 men in the Edinburgh museum, also taken at Cambridge ; and 

 Systenus adpropinquans, Lw., a genus and species of Doli- 

 chopodidae, hitherto unknown in England and of which very 

 little is known on the Continent. Other rare species caught by 

 Mr Jenkinson are Acletoxenus formosus, Lw., Stegana coleop- 

 trata, Scop., the only other recorded locality for this species 

 being the New Forest, Anomoea antica, W., a rare and very 

 handsome Trypetid, Piophila latipes, Mg., only otherwise 

 recorded from Herefordshire, Chloropisca rufa, Mg., Phora 

 erythronota, Strobl., and P. abbreviata, v. Ros. 



Among other species taken in this district the following 

 are worthy of mention : Docosia sciarina, Mg., Sceptonia 

 nigra, Mg., Polylepta splendida, Winn., Lasiosoma luteum, 

 Mcq., Asindulum flavum, Winn., Mycetobia pallipes, Mg., 

 Plesiastina annulata, Mg., Anopheles maculipennis, Mg., 

 and A. bifurcatus, L., and very rarely A. nigripes, Staeg., 

 Culex ornatus, Mg., Goniomyia lateralis, Mcq., Molophilus 

 propinquus, Egg., Rypholophus nodulosus, Mcq., Tipula vari- 

 pennis, Mg., T. lateralis, Mg., and T. lutescens, F., Orthochile~ 

 nigrocoerulea, Latr., Pachygaster atra, Pz., and P. leachii, 

 Curt., Agathomyia antennata, Ztt., Platypeza infumata, Hal., 

 and P. picta, Mg., Pipunculus fascipes, Ztt., Pipiza lugubris, 

 F., Chilosia vulpina, Mg., Melanostoma ambiguum, Fin., Syr- 



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