1872.] 149 



EXTEAOEDINAEY MIGEATION OF PYEAMEIS CARBUI. 

 BY F. BUCHANAJSr WHITE, M.D. 



My friend, Colonel Drummond Hay, of Seggieden, Pertlishire, has 

 furnished me with, tlie following account of a great fliglit of Pyrameis 

 cardui that tie once witnessed, which I think should be recorded. 



" It was, as far as I recollect, in the early part of the summer of 

 " 1842, while stationed in Vido, a small island in the harbour of Corfu, 

 " that an extraordinary flight of the Painted Lady Biitterfly took 

 " place. The first part of the column reached the island about 9 

 " o'clock in the morning, and continued steadily to advance in rolling 

 " masses of many thousands for upwards of three hours. Though the 

 " density of the column was at no time very great, yet it appeared to 

 " extend in breadth as far as one could see, having the appearance 

 " of black drifting snow, if I may so call it. By one o'clock the 

 " flight had completely passed : the wind at the time was blowing fresh 

 " from the south-east. In the afternoon, on sailing uj) the channel of 

 " Corfu, the traces of the passage of the flight were very evident, from 

 " the quantities of dead butterflies which floated on the surface of the 

 " water ; and, for days afterwards, they were to be seen drifting into 

 " the various bays in the island of Corfu. I did not hear whether 

 " this flight had been observed on the Continent ; but, as they ap- 

 " peared to be taking the direction of the coast of Italy, they would, 

 "in all probability, strike the land in the vicinity of Otranto." 

 Perth : October, 1872. 



NOTES ON HETEEOMERA, AND DESCEIPTIONS OF NEW GENEEA 

 AND SPECIES (No. 3). 



BY F. BATES. 



POLPOGENIA EIMOSA, Sp. %. 



Oblong-ovate, bro'sni, -with a slightly russet tinge ; entirely encrusted with a 

 gi'anulous exudation, protruding through which may, under a strong power, be seen 

 short, erect, stiff hairs, which at the sides of the prothorax and on the legs assume the 

 character of pubescence ; mandibles dilated, strongly keeled at the sides aud exca- 

 vated on each side of the keel, the upper excavation deep and broad ; mentum 

 broad, sub-angular at the sides, widely and angularly notched in front ; labnim 

 prominent, emarginate in front and ciliate, finely tubei'culate, hairy ; epistoma 

 short, broadly emarginate in front, the suture separating it from the front re- 

 presented by a linear depression- which also extends backwards to the eyes, 

 rapidly widenhig from the front backwards to the antennary orbits ; the latter 

 somewhat depressed above, very gradually rounded (from the point of junction with 

 the epistoma) to the eyes, so that they appear almost continuous with the epistoma, 



