( xxviii ) 



Mr. BiUups also exhibited living specimens of Carabus 

 auratus, which had been found in vegetables in the Borough 

 Market ; and also of a species of Blaps, which had occurred 

 in vegetables from Northern Africa. 



Mr. Waterhouse exhibited a specimen of a Brazilian Locust, 

 Conocephalus ? sp., which he had for some time preserved 

 alive, and which had only died that same morning. He called 

 attention to the change of colour which he had observed in 

 the eyes of this insect ; in a bright light they were dirty 

 white or horn-coloured, with a black dot in the middle ; but 

 at night, or if the insects were confined in a dark box, they 

 became altogether black ; shortly after death, also, the eyes 

 became black. Mr. M'Lachlan observed that he had noticed 

 a darker spot in the centre of the eye in certain Epherneridae, 

 and in other Neuroptera. The discussion was continued by 

 Dr. Sharp and others, but no one seemed to be able to account 

 for the alteration in question. 



Lord Walsingham exhibited specimens of Cater emna tere- 

 brella, Zk., a species lately taken in Britain, which he had 

 caught in Norfolk, and also bred from fir-cones gathered in 

 the same locality. 



Papers read. 



Mr. Meyrick read two papers, (1) "On Pyralidina from 

 Australia and the South Pacific," and (2) "Descriptions of 

 some exotic Micro-Lepidoptera." In these papers about sixty 

 new species were described. A discussion ensued, in which Dr. 

 Sharp, Mr. Stainton, Mr. M'Lachlan, and others took part. 

 Mr. Meyrick stated that, as far as the Pyralidina were con- 

 cerned, Australia could not be regarded as a separate region, 

 for a large number were not endemic, but appeared to have been 

 introduced from the Malay Archipelago. The method of this 

 immigration seemed doubtful. Mr. Meyrick was of opinion 

 that the insects flew very long distances, and effected a 

 settlement through their food-plants being widely distributed 

 and common. He instanced the undoubted immigration of 

 certain Australian species into New Zealand, a distance of 

 1200 miles. Mr. Stainton adduced the instance of Margarodes 

 unionalis, which is a South-European insect, feeding on the 

 olive, yet is occasionally found in Britain. In connection 



