352 NOTICES OF 



4. Herm. Max Schmidt. — Dissertatio inauguralis Zoolocfica 

 de Pselaphis Fauncc Prariensls, cum Anatomia Clatigeri. 

 Pragcc, 1836. — Mr. Schmidt describes the following new 

 Pselaphida' : — Tyclius dicrous^ Bytkinus Sternhergi and regiu- 

 laris, Bnjaxls O/mntkc and Helferl. In the genus Claviger 

 he has made a remarkable discovery, in case it be substan- 

 tiated, as he has found their eyes, which have hitherto been 

 denied them, and which are simple, and seated between the 

 antennae at the truncated frons. It is a useful little pamphlet, 

 and should be in the hands of those whom these minute insects 

 interest, as a necessary supplement to Reichenbach, Denny, 

 and Aube. 



5. Hulfshuch fur Schmetterlings sammler, von Friederich 

 TreitschJce. Wien, 1834. {The Butterfly Collectors Covipen- 

 dium.) — Treitschke, having finished his large work upon the 

 European Lepidoptera, has here made an extract from it for 

 young collectors, adapted chiefly for those living in the vicinity 

 of Vienna. What it contains most useful to the English 

 Lepidopterologist, is the mode he mentions of extracting the 

 grease from greasy insects, and which has been already suc- 

 cessfully experimented upon in this country, so that we can 

 safely recommend it. It is simply to immerse the insect in 

 Naphtha Petrolei (in Treitschke it is called Naphtha Vitrioli), 

 until saturated; upon removing it, the spirit speedily evapo- 

 rates ; and although it relaxes the insect safficiently for re- 

 setting, it does not affect its previous posture; although, to be 

 doubly sure, it is perhaps desirable to place the wings under 

 braces until the spirit has entirely escaped. 



6. J. J. Schott. RaupenJcalender oder Systematisches Verzeich- 

 niss oiler Raupen icelche in Deutschland bekannt sind. Frank- 

 furty 1830. {Calendar of Caterpillars, or Systematic List of 

 all the Caterpillars that are known in Germany.) — This work 

 is probably unknown to English entomologists, although pub- 

 lished seven years ago. We notice it chiefly for the purpose 

 of suggesting the utility to collectors, of a similar work upon 

 the caterpillars' of British Lepidoptera, for which there must 



^ We observe that Mr. Wood, of Tavistock-street, advertises an Illustration of 

 British Lepidopterous Larvae, on the same plan as his Index Entomologicus, to 

 commence on the completion of that work. 



