1906.] 143 



South Africii and Buriioo. Mr. IT. St. J. Doiiisthorpi", a specimen of Tlydrochits 

 nitidkoUix, Muls., a beetle not hitherto recorded from Britain, taken in the Kiver 

 Meavy in April. Kev. t. D. Morice, lantern slide photographs (from nature) of 

 the $ 'calcaria postica ' in JI{,iiieiwpfera belonging to diver.-* groui)s, mostly Aculeates, 

 but including also representatives of the Chrysids, Ichneumonids, and Saw Hies. 

 lie submitted that, in all the examples shown, the structure of the calcaria them- 

 selves (and also of the parts adjacent to them) clearly indicated that their main 

 function was that of an elaborately-constructed instrument for toilet purposes. 

 Dr. Dixey, specimens of M/jlothris agathina. Cram., and of Belenois thysa, Hopff., 

 pointing out that the close resemblance between these species obtained chiefly in 

 the dry-season form of the latter, and not in the wet. He considered this to be a 

 fresh illustration of the special liability to the attacks of enemies experienced under 

 dry-season conditions; leading in some cases to the adoption of a cryptic coloration, 

 and in others, as here, to mimicry of a protected form such as M. agalhina. 

 Professor E. B. Poulton, F.R.S., communicated a critical paper of ' The Late 

 Professor Packard's Paper on the Markings of Organisms," by Mr. H. Eltringham, 

 M.A., F.Z.S., and cordially supported the views of the author. Mr. Edward 

 Meyrick, B.A., F.R.S., contributed a paper " On the Genus Imma, Walk. {^^ToHri- 

 comorpha, Feld.)." — H, Rowland Beown, Hon. Secretary. 



DESCRIPTIONS OF THE LARVA AND PUPA OF ARISTOTELIA 

 PALUsTliELLA, Dgl. 



BY EUSTACE E. BANKES, M.A., F.E.S. 



Ill Ent. Mo. Mag., ^Ser. 2, xv, 278 (1904), the late Mr. Charles G. 

 Barrett contributed some interesting notes on the larva of Aristotelia 

 {'' Doryphora'') palustrella, Dgl., but since these were neither so full 

 nor so definite as could have been wished, and since he only described 

 it from "a carefully executed drawing," instead of from nature, I 

 venture, with the approval of Mr. William Purdey, who discovered 

 the life-history, and of Mv. Sydney Webb, w^ho supplied Mr. Barrett 

 with the drawing, to offer the following description of the larva, and 

 to add one of the undescribed pupa. The former was made, on June 

 2nd last, from two larvae (c?,?), apparently in their final instar, 

 received with a few others, on May 31st, from Mr. W. Purdey, who 

 had collected them at Folkestone. 



LARVA. 



Length, when moderately stretched, 14 ram. Greatest breadth, '1 mm. Read 

 rather flattened, polished, deep orange, much narrower than the prothorax ; upper 

 mouth-parts blackish ; ocelli distinct, black. Frothoracic plate rather large, polished, 

 bisected by a narrow whitish line, and variable in colour, being pale brownish- 

 ochreous, narrowly margined with dark brown, in the J , and dark raw-umber, lightly 

 marked with black, especially round the posterior margin, in the $ example, but it 

 is highly improbable that the variation in the colour of this plate is in any way 



