158 The Insects of Cambridgeshire 



pretty little Hygronoma dlmidlata is not uncommon in stems 

 of reeds in Wicken Fen. The little Mycetoporus lony'ironi'm, 

 always a rare insect, has been taken by the writer under 

 vegetable refuse in Wicken Fen. Several specimens of the 

 beautiful Staphylinus fulvipes were taken by Messrs Champion, 

 Gorham and Walker under cut grass at Chippenham Fen in 

 1898; the rare Ocypus fuscatus has occurred to the writer 

 at Up ware under a stone. Xantliolinus tricolor occurs under 

 vegetable refuse in Chippenham Fen and Wicken Fen, and 

 the rarer X. glaber was taken by Dr Power at Grantchester. 

 In the genus Stenus, S. proditor, chiefly a fen species, may 

 be mentioned from Wicken. The little Thinobius breinpennis, 

 purely a fen insect, has been taken at Quy Fen. 



Passing on to the large order Clavicornia, in the genus 

 Anisotoma, Wicken and Bur well Fens are two of the very 

 few localities recorded for the rare A. 6besa\ and A. ovalis 

 is not uncommon by evening sweeping in the former locality. 

 In the carrion-feeders the writer has taken the large Necrodes 

 littoralis under fish refuse at Up ware. Silpha tristis occurs 

 at roots of grass at Wicken Fen, the rare S. nigrita was taken 

 by Power on the Gogmagog Hills, and the spotted S. 4,-punc- 

 tata has been recorded from Gamlingay on oaks. 



Among the very small Tricopterygidce, Trichopteryx 

 championis appears only to have occurred at Wicken Fen, 

 and the very rare Ptilium affine and P. incognitum seem to 

 be confined to the same locality. In the "ladybirds," Cocci- 

 nella hieroglyphica may be mentioned, both the type and the 

 black form occurring in Wicken Fen: the very local Murmi- 

 dlus ovalis was taken by Dr Power at Madingley Wood. The 

 extremely scarce Nemosoma elongatum was taken by Professor 

 Babington near Cambridge in May, 1834. The pretty little 

 spotted Psammcechus bipunctalus is not uncommon in cut 

 sedge and stems of reeds in the fens. Antlierophagus n'ujri- 

 cornis, which is parasitic on certain bees, may be swept not 

 uncommonly off flowers in Wicken Fen. 



The very rare Cryptophagus xchmulti has only been taken 

 at Wicken Fen (by Mr Champion), and at Whittlesea Mere 



