LIST OP INSECTS, 19 



Eristalis tenax. — A very common species, and usually appears on the first 

 warm days of March; probably, like some of the Lepidoptera, is called forth 

 from its winter hybernation by the genial warmth of spring. It is an insect 

 of successive occurrence throughout all the summer months, even until late 

 in autumn, being one of the few insects which may be seen on the blossoms 

 of the ivy on a bright October day. 



Var. Campestris. — This variety is very common. 



E. ceneus. — I have taken this species off the flowers of Senecio Jacubcea, 

 (common ragwort,) at Pevensey, on the shingle, and also in a lane near Kingston, 

 Lewes, in August, but not common. 



E. similis. — Of very frequent occurrence throughout the summer; habits 

 similar to tenax. 



E. intricarius. — Not common, but observed on the blossom of the blackthorn, 

 (Prunus spinosa,) in April and May, near Landport and Iford, near Lewes. 



E. nemorum. — In the Plashet Wood in June and July, on umbelliferous 

 plants. 



E. arbustorum. — Abundant everywhere throughout the summer months. 

 The male and female present such a very different appearance that the young 

 collector might readily mistake them for separate species. 



E. horticola. — In Plashet and Warringore "Woods. Rare. 



Helophilus pendulus. — In Plashet Wood and the lanes in the neighbour- 

 hood of Lewes and Hailsham, from early spring throughout the summer. 

 Varies much in size. 



H. lineatus. — Very rare. One specimen only, taken in a wood near Firle. 



Syritfa pipiens. — Most abundant. An active lively little insect, and one 

 that may be observed on almost every roadside or garden flower throughout 

 the summer. 



X.ylota sylvanum. — Not common, and chiefly to be found in the lanes near 

 to woods — the Plashet and Warringore Woods. A very shy insect. 



X. segnis. — Found in the same localities as the preceding, but rarely. 



Criorhina oxyacanthce. — In the Plashet Wood on warm days of March I 

 have observed it tolerably common, settbng before me on the pathways in the 

 bright sunshine; it is apparently a rather bold species, similar in its habits 

 to Sarcophaga carnaria. 



Volucella pellucens. — Taken, but rarely, in the Plashet Wood in July and 

 August, basking in the hottest sunshine upon the leaves of trees and plants. 

 It is a very beautiful species. 



V. inflata. — Equally as rare as the preceding, and equally as handsome. It 

 frequents the same localities in June and July. 



V. bombylans. — Common in August, and usually found at rest on the flowers 

 of the knapweed, (Centaurea scabiosa,) on the borders of corn-fields at the 

 foot of the Downs. It is very sluggish, allowing itself to be taken with the 

 fingers. It has a very bee-like appearance. 



Chrysotoxum intermedium. — Rare. I captured two specimens on July 23rd., 

 1854, in the Plashet Wood. 



C. marginatum. — Rare. In a moist wood near Firle, in July, 1855. This 



