1910.] y 5 



BlBIONID^. 



Dilophus fcbrilis, L. — Found as the prey of Empis tessellata, F., May 26th, 

 1905. 



Bibio marci, L. — Abundant. 



TlPULID^. 



Tipula oleracea, L. — Once seen in the jaws of Asilus crabroniformis, L., 

 again as the prey of Philonicus albiceps, Mg. In the autumn, if a strong east 

 wind be blowing, it is cui-ious to watch this insect on Woolacombe sands. 

 Thousands of the flies blown from the land attempt to settle on the shore ; for 

 a few moments they dother in the wind upon their long legs, but are soon 

 swept on, rolling over and over along the smooth sand ; now and again between 

 the gusts they recover their legs, but the process is repeated until at last the 

 all-devoiiring waves are reached. 

 Stratiomtid^. 



Sargxis flavipes, Mg.— A $ in my garden, Sept. 16th, 1909 ; S. mprarius, L. 

 One in my garden, Jvily 28th, 1908. 



Chloromyiaformosa, Scop. — Common, July 20th — August 5th. The remains 

 of one found as the prey of the sawfly Allantus ? arcuatus, Scop. 



Microchrysa polita, L. — One at Twitchen, May 29th, but common the last 

 week of July. Fond of settling on leaves of Hydrangea. 



Beris morrisii, Dale. — Two specimens : Twitchen Garden, July 22nd, 

 Borough, July 29th, 1909. 



Tabanid^e. 



Hxmatopota x^luviaHs, L. — Only too abiuidant. 



Tabanus maculicornis, Ztt. — Borovxgh, not common. Chrysops csecutiens, L. — 

 This exquisite fly is scai'ce at Twitchen, common at Borough. 



Leptid^. 



Leptis scolopacea, L. — One, Mortehoe, May 26th, 1905 ; another at Borough, 

 June 4th, 1906. L. tringaria, L. — A ? with prey (which was lost). Borough, 

 July 19th ; another at "Woolacombe, Jvdj 26th, 1909. 



Chrysopilus cristatus, F. — -Borough, several by sweeping amongst Inula 

 dysenterica, July 23rd, 1909. 



ASILID^. 



Leptogaster cylindrica, Deg. — One of this AgTion-\i\.e fly at Twitchen, July 

 28th, 1908. 



Dioctria rufipes, Deg. — One at Borough, July 21st, 1908. 



Asilus crabroniformis, L. — This formidable fly is not uncommon in some 

 years ; its buzz is almost as terrible and as suggestive of a hornet as its appear- 

 ance. It is most commonly seen settled on very short grass on high land. Only 

 once have I seen one with prey, a large Daddy-long-legs. 



Philonicus albiceps, Mg. — Frequent on Woolacombe sand-hills close to the 

 sea in July and August ; it usually settles on the bare sand. Once I saw a ? 

 devouring a blue-bottle {Calliphora vomitoria,!!.) and whilst so engaged a <? fly 

 pounced upon it and I netted all three. Another was taken flying with Tipula 

 oleracea, L., in its grasp. 



