1909.) 201 



bers, and in various years, from larvge and pupre collected in the Isle 

 of Purbeck, or received from Bournemouth, during the latter part of 

 May and the earlier half of June, have emerojed in my ca<;es, kept 

 indoors, on numerous dates durincr June and July, the earliest being 

 June I2th (1890 and 1901) and the latest July 29th (1889). 



In Ent. Rec, xv, 274 (1903), we read, in " Current Notes," as 

 follows: — " Baron de Crombrugghe de Picquendaele gives (A.un. de la 

 Soc. Ent. de Belg , xlvii, p. 270) an interesting note on tiie larva of 

 Olethreutes hifasciana, which he says is full fed about mid- May, pupa- 

 tion taking placf from then to mid- June, freshly-emerged imagines 

 being taken in early July ;" but T have not seen the Baron's note. 



It is worthy of remark that in the Bournemouth district, which 

 includes a portion of south-east Dorset as well as of south-west Hants., 

 E. sylvestrana appears, of recent years, to have become much scarcer 

 than formerly, whilst O. hifasciana has increased greatly in numbers, 

 and may sometimes be found in the utmost profusion amongst P. 

 innafiter. 



Norden, Corfe Castle : 



July 21th, 1909. 



ACOCEPRALUS TRICINCTUS, Cite., and A. TRIFASCIATUS, Fabr. 

 BY JAMES EDWAEDS, P.E.S. 



Previous to August, 1908, when A. tricinctus appeared as a se- 

 parate species in the new Catalogue of British Hemiptera, all English 

 writers on Homoptera, myself included, had contented themselves 

 with placing the above named as a synonym of A. hifasciatus. Fab., 

 probably finding some justification for this in the paucity of specimens 

 exactly agreeing with Curtis' figure. However, amongst some Homoptera 

 sent to me for names last year by Mr. Harwood, there was an ex- 

 ample of A. tricinctus, the first I had seen, and on July 19th last 

 whilst searching at the roots of plants in a damp place here I found 

 a single male of the same species. Of course this led to further 

 search in the same spot, and in the end I obtained, at the rate of 

 one per hour of hard work, sufficient examples of both sexes to 

 warrant the conclusion that I had at last found A. tricinctus at home, 

 and that it is a species perfectly distinct from A. hifasciatus, which I 

 also know very well in tbe field. 



The following are the most obvious distinctions between the two 

 forms : — 



