148 



such as Tetracanthella, Tullbergia spp., etc. Also the curious and 

 very minute Megalothorax minimus and Neelus minutus. 



(c) Protura. British examples of the genera Acerentulus,. 

 Acerentomon, and Eosentomon, mostly from the North of England. 

 The Order was diagnosed by Silvestri in December 1907, and 

 monographed by Berlese in 1909. 



{d) Thysanoptera. — A fairly complete collection of British 

 thrips, including examples of all the recent additions, also the 

 giant Megathrips nobilis Bagn., and other types. 



(e) Mallophaga. — New British bird lice from the fulmar, 

 cormorant, little auk, little owl, pheasant, pigeon, swift, starling, 

 and other birds, including a new Trinoton from the teal. 



(/) Myriapoda. — A collection of British species mostly from 

 the North of England, and including several (over two dozen) 

 new species and representatives of two families and several 

 genera new to Britain. Also types of eight new species of 

 Symphyla . 



IV. — Prof. Poulton and Mr. A. H. Hamm. 



INSECTS AND THEIR PREY : WITH SPECIAL REFERENCE TO 

 THE COURTSHIP OF THE ÉMPIDO. 



The following account of this important exhibit has been 

 taken from the current report of the Hope Professor of Zoology: 



" No more interesting and valuable addition to the bionomic 

 series has ever been made than the large collection by which 

 Mr. A. H. Hamm, of the Hope Department, has thrown so much 

 light upon the courtship of the Empid flies. 



" Results so surprising require abundant proof, and it will be 

 admitted by any one who studies the series that the material, 

 both of Empidœ themselves and the insects captured or objects 

 seized by them, is of immense extent and most carefully collected, 

 embodying the results of a large number of original observations 

 and most ingenious experiments. The whole of the researches 

 were carried out in the neighbourhood of Oxford. The great 

 labour of labelling and cataloguing was ñnished by Mr. Collins 

 in time for exhibition at the Entomological Congress in August 

 1 91 2, where the collection was studied with keen attention and 



