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erroneous attribution of Marsham's ruficollis to it as a synonym. L. rugicollis, 01., 

 Mrtus, Schiipp., and rugosus, Hbst., are also erroneously attributed to Britain by 

 Mannerheim, apparently through Stepheusian blunders (though rugosus has subse- 

 quently been found in this country). The same observation applies to Corticaria 

 longicomis . Hbst. (not in Wat. Cat. syn.), linearis, Payk., and similata, Schiipp. — 

 E. C. Rye, 10, Lower Park Fields, Putney, S.W., April, 1870. 



Note on the Heteromerous genus Platesthes, G. R. Waterli. (Ann. 8f Mag. Nat. 

 Hist., 1845, vol. xvi, p. 317). — M. Lacordaire, in his " Genera des Coleopteres," 

 Tom. v, p. 215, says that the insect which Mr. Waterhouse describes (silphoides) 

 is the same as that described by M. Guerin Meneville under the name Praocis 

 depressa in the Revue Zool., 1841, p. 215. This is, however, a mistake ; I have 

 both insects before me, and they evidently belong to quite distinct species, although 

 to the same genus. The description of Praocis depressa will apply to Platesthes 

 silphoides in every point, except that in depressa the elytra are said to be a little 

 longer than broad, whilst in P. silphoides they are decidedly longer. The thorax 

 in silphoides is very nearly as broad as (sometimes broader than) the elytra, the 

 disc being very thickly and strongly impressed with almost confluent punctures j 

 but in depressa the thorax is decidedly narrower that the elytra, the disc being 

 sparingly and not deeply punctured. The elytra in the specimens of depressa in 

 the British Museum collection are inclined to fuscous. 



The dimensions of the two species are as follows : — P. silphoides, long. 5| lin., 

 lat. 2| lin. ; P. depressa, long. 5j lin., lat. 3 lin. Both insects are from S. Patagonia. 

 — Chas. O. Waterhouse, British Museum, March 21st, 1870. 



Note on Cleonus sulcirostris. — I took a specimen of this beetle to-day, upon a 

 dwarf-willow on the sand-hills here, and note the circumstance, as the insect lives 

 in thistles, so that willow would seem an unnatural habitat for it. — E. Koper- 

 Curzon, Shortlands, Bridgend, S. Wales ; Wi April, 1870. 



Early occurrence of Lycosna Argiolus. — To-day (exceptionally warm and sunny) 

 I took a fine ? of this species. We consider here that last year the season was 

 fully a month in advance, as compared with this ; yet the earliest date upon which 

 I then saw Argiolus was April 24th. — Alexander Nash, Hardwicke, Gloucester, 

 4th April, 1870. 



Note on Saturnia carpini. — One $ of this insect appeared on March 31st, and 

 one 6* this day (April 5th). Both had been two years in pupa. — Id. 



On the egg-state of Cirr&dia xerampelina. — At p. 135, vol. iv of Ent. Mon. 

 Mag., I have given an account of all I ever had to do with this species, in the way 

 of investigating its earlier stages ; but, although I cannot say much from my own 

 knowledge, I possess a good deal of information about it, given me by the 

 late Mi'. Edmunds, of Worcester. He claimed to speak from much experience in 

 rearing it, and gave this as the result of his investigations — that he found if the eggs 

 were kept at no higher temperature than that prevailing out-doors, the larva? would 



