LIST OP INSECTS. 159 



ditches during the summer months, and on the leaves of aquatic plants, also 

 on the blossom of the Meadow-sweet. 



DOLICHOPnm— Leach. 



Dolichopus nobilitatus. — Very abundant on aquatic plants in the ditches in 

 the Lewes levels in July. 



Chrysotus viridulus. — Pare. Taken near Firle. 



LONCHOPTEEID^.— Ctjutis. 



Lonchoptera punctum.— This little species is found very plentifully by 

 sweeping the ditches from March throughout the summer. 



CONOPIDJL 



Conops quadrifasciata. — 'Not uncommon in the Plashet and Warringore 



Woods in August, on the flowers of the Common Ragwort, (Scnecio Jacobcea.J 



C. rufipes. — Frequents the same localities as the last, but more rarely observed. 



MUSCLDiE. — Latkeille. Division Calypter^e. — Meigen. 



Bucentes geniculates. — Not common. Occasionally observed basking on 

 palings in the sun in April and May. 



Tachina grossa. — On the trunks of trees in the spring, but not common. 



T. ferox. — Frequents the sides of corn-fields near the Downs, in June and 

 July. 



T. ursina. — Of frequent occurrence on Unibelliferce by the sides of corn- 

 fields, near the Downs, in June. 



T. lateralis. — Very common on the blossom of the Cow Parsnip, (Herac- 

 Icum sphondyliam,) on hedge banks, in June. 



Sarcophaga carnaria. — Abundant everywhere. Very variable in size. Its 

 usual habit is to settle before you in pathways, either on the ground or on 

 a stone, in the hottest sunshine; appearing from April to October. It is 

 one of the species which may be seen frequenting the ivy blossoms. 



Musca vomitoria. — Very common everywhere. 



M. CcBsar. — Abundant on Umbellifera;, etc. 



31. domestica. — Most abundant, and particularly in the month of August. 



M. rudis. — Frequents the windows of houses in early spring, and on walls 

 facing the sun. Very common. 



M. corvina. — Observed at Firle by a young friend from whom I have two 

 specimens; he speaks of it as not being uncommon. 



M. maculata. — Not rare near Lewes. A distinctly -marked species; it 

 frequents walls and palings facing the sun. 



Tetanocera dorsalis. — Occurs occasionally, and principally obtained by 

 sweeping. 



T. liueata. — One of the species which is the produce of the sweeping-net, 

 but it is not common. 



Borborus equinus. — Frequents the sallow-blossoms in March and April. 

 Limosina limosa. — Most commonly observed in the windows of out-houses, 

 also on walls near drains and gutters early in the spring. 



Platystoma seminatiunls. — Not uncommon on the leaves of the Burdock, 



