30 



hibited on behalf of Mr. Sydney Webb, vars. of Argynnis 

 adippCy L., two being suffused with black, one with very con- 

 siderable additions to the ordinary silvery markings, and two 

 of cleodoxa, Och., a variety in which the silvery markings 

 were wanting. An exceedingly pale primrose var. of Cceno- 

 nynipha pampJiilus, L., two Apatiira iris, L., showing two 

 degrees of the var. iole, Schiff., one with the band entirely 

 obliterated, and in the other partially so. Also two vars. of 

 Limenitis sibylla, L., with the bands partly absent. 



Mr, Robt. Adkin exhibited series of PJiibalapteryx lapidata^ 

 Hb., from Rannoch, and P. vittata, Bork. { = lignata, Hb,), 

 from Paisley. With regard to the latter he said that it was 

 somewhat remarkable, that, although his fellow member, Mr. W. 

 Smith (to whom he was indebted for the specimens exhibited), 

 together with other entomologists, had been in the habit of 

 collecting over the same ground where they were taken, for 

 some years, they had not met with a single example of the 

 species until 1890, when they found it in some abundance, 

 and again in 1891 it had been equally common. It could 

 hardly be supposed that it had occurred there in any number, 

 and been overlooked by them altogether. On the other hand, 

 if it had been so exceedingly scarce as to evade observation or 

 had been absent altogether, it was very remarkable that it should 

 become suddenly so abundant. The question was one of some 

 importance, and it would be interesting to note whether the 

 species continued to occur there as it had done during the past 

 two years, or whether it again disappeared from the locality. 



Mr. Tugwell endorsed Mr. Adkin's remarks, and stated 

 that some of his specimens from the same locality were 

 extremely dark. Mr. Fenn remarked on its habit of fre- 

 quenting moist situations. Mr. South said he once took k 

 female at Mill Hill, and reared a long series the same year. 

 The larvae were fed on clematis. 



Mr. Edwards exhibited Sirex gigas, L., and Cicadetta 

 montana, Sep., from the New Forest, and stated that stridu- 

 lation in the latter species was confined to the males, and was 

 due to two membranes acted on by muscles placed in a cavity 

 at the base of the abdomen, these muscles being covered 

 externally by the dilated sides of the metasternum. 



Mr. Edwards also exhibited specimens of the exotic genera 

 Thais and Pamassitis, with the only species helios, of the 

 intermediate genus Ismene. 



Mr. Barrett asked if the British species of Cicada stridu- 

 lated,and Mr. Billups, who had taken a number at Haslemere, 

 said he had not noticed it. 



