( xlix ) 



of the leaf or stem. The ? is furnished with two spines or 

 cutters very similar to those of N^. typhae. 



The first exhibit shows a stem of Carex split down the 

 centre to show where larva has been feeding. The second 

 shows entrance hole of larva just above the root; the 

 withered and yellowish central leaves denoting the presence 

 of the larva should be noticed. The third shows the 

 puparium with an empty pupa case ; just above the pupa, the 

 spot where the larva has eaten away the inner lining of 

 the stem, leaving a transparent "bruise" where the insect 

 would emerge. 



The pupa is of the usual Nonagriid type, but with a very 

 slight "beak." The cremaster is furnished with two spines 

 turning downwards and outwards. 



Wilde describes the early stages as follows : " Lives from 

 April to June in stems of Carex close to the root, ascends 

 in July higher vip the stem, and changes in a lightly spun 

 puparium. The imago emerges in August and September." 



A Scarce Thrips. — Mr. C. B. Williams exhibited a 

 specimen of the male Megalothrips nobilis, Bagnall Thysano- 

 2)tera), from Wicken Fen, taken April 11, 1912. This is 

 the largest European species and, since first taken by Dr. 

 Sharp in 1894, has not been recorded. 



East African Tabanidae, with many hitherto unknown 

 Males. — Mr. S. A. Neave exhibited some of the Tabanidae 

 collected during his recent tour in East Africa, on behalf of 

 the Entomological Research Committee of the Colonial Office. 

 He called attention to the male individuals exhibited, and 

 expressed the opinion that their i-arity in collections was 

 perhaps due to the fact that they were short-lived. Both 

 sexes of the following species were represented : Tabanus 

 usttis, Walk. ; T. biguttatits, Wied. ; T. nyasae, Eic. ; T. 

 iaeniola, P. de B. ; T. fratemus, Macq. ; T. fascinatus, F. ; 

 T. africanus. Gray ; T. kucostomus, Lw. ; T. atrimanus, Lw. ; 

 T. velutinus. Sure. ; T., sp. nov. ; T. sharpei, Aust. ; T. j)cir, 

 Walk. ; T. thoracinus, P. de B. ; T. maculatissimus, Macq. ; 

 T. pertiuens, Aust. ; T. gratits, Lw. ; T. ditaeiiiatus, Macq. ; 

 T. sp. nov. ; Aeyophagamyia pungens, Aust. ; Theriojilectes, 

 sp. nov. ; Haematopota, sp. nov. ; H. xiuicolor, Ric. ; H., sp. 



PROC. ENT, SOC. LOND., II. 1912. D 



