108 



Scalariidae by Scalaria ; the Pyramidellidae by the genus 

 Odostotnia, of which there are several species ; the Naticidae 

 by the genus Natica ; the family Littorinidse, having two 

 representatives in the genera Hydrobia and Littorina ; the 

 Lacunidse by the genus Lacuna ; the Rissoidge by Rissoa, of 

 which there are several species, and Barleeia ; the family 

 Cerithiidae is represented by two genera, Cerithium and 

 Cerithiopsis ; as is also the Pleurotomidse by the genera 

 Defrancia and Pleurotoma. The family Trochidae is repre- 

 sented by two genera, Adeorbis and Trochus ; while Phasian- 

 ella is the only genus doing duty for the Turbinidse." 

 FEBRUARY 26th, 1891, 

 W. H. TUGWELL, Esq., Ph.C, President, in the Chair. 



Mr. C. G. Barrett, F.E.S., was elected a Vice-President. 



Mr. R. J. Anderson, was elected a member. 



Mr. Adye exhibited an unusually dark form of Notodonta 

 canielina, L., with other forms of the species. 



Mr. H. J. Turner exhibited Melanippe fliictuata^ L., taken 

 in his garden at Brockley. The specimens showed consider- 

 able variation, and Mr. Tugwell remarked that Mr. Turner 

 was extremely fortunate in obtaining varieties of this species, 

 the variety figured in the Abstract of Proceedings for i888-8g, 

 having been taken by him in his garden. 



Mr. H. Moore exhibited a specimen of Erebus odora from 

 South America. 



Mr. E. Step exhibited a living wasp Vespa germanica, Fab., 

 which he stated had some months previously taken up its 

 abode in one of the pigeon holes of his desk and was still 

 alive. Mr. Billups mentioned having once taken nine 

 females of this species on Wandsworth Common as early as 

 the 17th January. 



Mr. T. D. A. Cockerell exhibited larvae of Heliothis 

 armigera, Hb., var, umbrosa, Grote, from Wet Mountain 

 Valley, Colorado, a form larger than the type, the upper wings 

 being more or less olivaceous above, and the under wings 

 almost without markings. 



Mr. C. Fenn exhibited examples of the genus TripJicsnaixom. 

 Forres ; Mr. McArthur, T. comes, Hb,, from the Isle of Lewis, 

 and T. ianthina, Esp., from Northumberland. Mr. Turner, 

 T.pronuba, L., from Brockley, and Mr. South and Mr. Tugwell, 

 varieties of many species of the genus. 



Mr. R. Adkin exhibited long series of the species of the 

 genus Triphcena, Och., from many localities in the British 

 Islands, together with Continental series of some of the 



