Xlll 



' Kafer-Fauna der Scliweiz'; by the Eutomological Society of Switzerland. 

 'L'x'Vbeille,' vols. i. — vi. ; by M. de Marseul. 



Exhibitions, Sc. 



Mr. Dunning exhibited a locust captured near Thirsk, Yorkshire, in the 

 autumn of 1849 : the prothorax was flat and constricted in front, and notwith- 

 standing the contention of Prof. Westwood [ante, p. viii.) he thought this was 

 the true Locusta migratoria of Linne. • The appeal to tradition did not tell 

 entirely on one side : Fabricius when he described cinerascens was acquainted 

 with migratoria, and it was clear from his description that cinerascens was the 

 form with the arched prothorax ; consequently migratoria, from which Fabricius 

 separated cinerascens, was according to his belief the form with the flat 

 prothorax. But further, from the time of Fabricius to the present, cinerascens 

 had always been regarded as a doubtful species, the majority of authors having 

 treated it as only a variety of migratoria ; the entomologists from whose 

 collections the Oxford specimens were derived might have been of this opinion ; 

 at all events until it was shown that they recognized the existence of the two as 

 distinct species, the argument derived from their having labelled specimens of 

 cinerascens with the name migratoria was far from conclusive. Finally, 

 Linne's own description of migratoria applied to the form commonly so called, 

 and not to the form with the arched prothorax. The differences between the 

 two had been pointed out by M. Brunuer de Wattenwyl (Ann. Soc. Ent. Belg. 

 xi. 32j so clearly as to have induced M. de Selys Lougchamps to recognize 

 Pachytylus cinerascens as a species. The recent discussion had been provoked 

 by the appearance in this country of Acridium peregrinum, and had satis- 

 factorily brought out the fact that, if migratoria and cinerascens (= Christii, 

 Curtis) were really distinct species, both of them had occurred in Britain. 



Mr. Howard Vaughan (on behalf of Mr. Henry Moore, who was present as a 

 Visitor) exhibited some specimens of Dianthoecia conspersa, two of which were 

 so coloured as to bear a singular resemblance to D. Barrettii : they were found 

 on the coast of Devonshire in 1861. Although the varieties of D. conspersa 

 were mixed with true conspersa and true Barrettii, the Lepidopterists present 

 had no difficulty in distinguishing between the Barrettii and their simulators. 



Mr. Bond exhibited Epichuopteryx betulina, Zell. (= Psyche anicaueUa, 

 Bruancl), found by Mr. Mitford at Bishop's AVood, Harapstead, in 1869 : the 

 female was distinguished by a snow-white anal tuft ; the larva-cases fesembled 

 small cases of Psyche fusca, but the habit of the insect was quite different, 

 E. betulina being always found on the upper branches of the birch. (See Ent. 

 Mo. Mag. vi. 94, 186). 



Mr. Stainton exhibited Cosmopteryx Lienigiella, bred from a larva found 

 feeding in the reed [Arimdo phragmites), in Wicken Fen, Cambs. The English 

 specimen -was both larger and fairer in tint than the Kussian specimens shown 

 at the previous Meeting (ante, p. ix.). 



