Vol. xxx] EXTO.M(;L(K;R-.\L NEWS 85 



It was planned to appear in 32 fascicules of a varying number of 

 pages, of large quarto size, illustrated by text figures and some plates. 

 The subscription price for the complete work was fixed at 25 centimes 

 (20 centimes for the fascicules on Orthoptera, Lepidoptera and Verte- 

 brates) per page of text, 2.75 francs per colored plate and 2 francs per 

 bleck and white plate, with an increase of 25 per cent, for subscriptions 

 to separate parts only. 



At the beginning of the war 21 fascicules had appeared, treating 

 of the Orthoptera, Embiidae, Perlodides. Megaloptera, Trichoptera, 

 Ascalaphidae, Libellulinae, Cordulinae, Aeschninae, Birds, Mammals, 

 Amphibians and Fishes, at a total price of 703.50 francs. The eight 

 fascicules on the Libellulinae by Dr. F. Ris, of Rheinau, Switzerland, 

 constitute the most extensive monograph on that subfamily ever pro- 

 duced, and several other groups have been dealt with in a similar 

 fashion. Several fascicules are in such an advanced state of prepara- 

 tion or of printing that they can lie issued in a short time. 



There are many reasons scientific, humanitarian, international, ap- 

 preciative of the nation which has suffered so fearfully why the Sely- 

 sian Catalogue should be carried to completion, and it is to be hoped 

 that readers of this appeal will personally do all in their power to aid 

 in this accomplishment by inducing institutions which they can in- 

 fluence to subscribe. All correspondence relating to subscriptions should 

 be addressed to M. G. Severin, Musee Royal 1'Histoire Naturelle. 31 

 Rue Vautier, Bruxelles, Belgium. PHILIP P. CALYKKT, University of 



Pennsylvania. 







Entomological Literature. 



COMPILED BY E. T. CRESSON, JR., AND J. A. G. REHN. 



Under the above head it is intended to note papers received at the 

 Academy of Natural Sciences, of Philadelphia, pertaining to the En- 

 tomology of the Americas (North and South), including Arachnida and 

 Myriopoda. Articles irrelevant to American entomology will not be noted; 

 but contributions to anatomy, physiology and embryology of insects, how- 

 ever, whether relating to American or exotic species, will be recorded. 



The numbers in Heavy- Faced Type refer to the journals, as numbered 

 In the following list, in which the papers are published. 



All continued papers, with few exceptions, are recorded only at their 

 first installments. 



The records of papers containing new species are all grouped at the 

 end of each Order of which they treat. Unless mentioned in the title, 

 the number of the new species occurring north of Mexico is given at 

 end of title, within brackets. 



For records of Economic Literature, see the Experiment Station Record, 

 Office of Experiment Stations, Washington. Also Review of Applied En- 

 tomology, Series A, London. For records of papers on Medical Ento- 

 mology, see Review of Applied Entomology, Series B. 



4 Canadian Entomologist, London, Can. 5 Psyche, Cambridge, 

 Mass. 8 The Entomologist's Monthly Magazine, London. 10 

 Proceedings of the Entomological Society of Washington, D. C. 

 15 Insecutor Inscitiae Menstruus, Washington. 17 Lepidoptera, 



