INSECTA. ■ 687 



orders. We must, however, here restrict ourselves to a notice of the chief works which l>ave appeared on these 

 difterent families. 



The " Histoire Naturelle des InsectesNeuropteres,"by M. Rambur, forming portion of Roret's " Suites a Buffon," 

 appeared in 184^, and contains an entire monograph of the order, some portions of which, the Libellulid^, 

 Mj'rraeleonidae, »fcc. have been very carefully investigated by the author (the Linuaean genus Libellula alone 

 occupying nearly three hundred pages). In this work the author has nearly followed the arrangements of Pictet 

 and Barmeister, retaining, however, the whole of the divisions as portions of the order Neuroptera. His seven 

 divisions are as follows : — 



1. The Corrodentia, containing the Termetidfe and Embiida\ 



2. The Psocidae, including Psocus and Coniopteryx. 



3. The Subulicornia, consisting of the Odonata [Libellula] and Agnatha [Ephemera]. 



4. The Planipennes, containing the Panorpidse, Nemopteridse, Myrmeleonidas, Nymphidce, Hemerobiidse, and 



Mantispidie. 



5. The Semblides, containing Raphidia, Semblis, &c. 



6. The Perlides. 



7. The Trichopteres [Phryganea, Linn.] 



Each of these divisions is subdivided into families and genera, and a great number of species described 

 especially in the groups separated from Libellula, Linn. An excellent paper on the anatomy of some of the 

 genera of this family is given by Loew in the third volume of the Linnaea Entomologica ; and the anatomy of 

 many species is also illustrated in Dufour's Recherches Anatomiques et Fhysiologiques sur les Orthopteres, les 

 Hymenopteres et les Neuropteres, 4to, 1841. 



In addition to Rambur's work above noticed, the student must also consult the following works upon the 

 Libellulidae : — 



Hagen Synonymia Libellularum Europrearum. 



Charpentier Libellulina? Europeaj, descriptae ac depictae, tabulis XLVIII. 



Selys Longchamp Monographic des Libellulidees d'Europe, followed by numerous detached articles on the 

 family in the Bulletin of the Brussels Academy, the French Annals, &c. The same author has also 

 published a complete revision of the Synonyms of the British Species of Dragon Flies. 

 Boyer Fonscolombe, Monograph of the Agrionides in Annales Soc. Ent. France, Vol. VII. 

 Evans's British Libellulinoe, or Dragoa Flies, illustrated in a series of lithographic drawings, 8vo, 1845, 

 twenty-one plates. 



The Ephemeridce have formed the subject of a fine monograph by Professor Pictet, Geneva and Paris, 1843, 8vo 

 with forty-seven plates. In this work the author adopts seven genera. Ephemera, Palingenia, Baetis, Pota- 

 manthus, Cloe, C;enis, and Oligoneura, founded not only on the characters of the perfect insect, hut on those of 

 the transformations of the species of which each is composed. An excellent memoir on the anatomy and trans- 

 formation of Palingenia Virgo has been published by Cornelius. 



The Perlides have been monographed by Newman, and by Pictet in his Histoire Naturelle generale et parti- 

 culiere des Insectes Neuropteres ; famille des Perlides, Geneva, 1841, Svo, fifty -three plates, in which work the 

 author admits only six genera, Kollaria, Eusthenia, Pteronarcys, Perla, Capnia, and Nemoura The whole of 

 these species are described and figured with great care. A remarkable peculiarity has been observed by Newport 

 in a species of Pteronarcys, namely, the retention in the perfect state of the external branchiae of the larva in 

 addition to the ordinary series of spiracles of the Imago. 



The Hemerobiida>, of Belgium, have been monographed by Wesmael in the Bulletin of the Brussels Academy, 

 and the British species have been illustrated by Evans in the Trans.- of the Entomol. Society of London, Vol. V. 

 A remarkable insoct which inhabits the fresh water sponge has formed the subject of communications by myself, 

 and by Professor Grubc and Mr. Haliday, by whom it is regarded as the larva of Hemcrobius fuscus. 



A systematic di.-.tribution of the Ascalaphides has been published by A. Lefebvre in Guerin's Magasin de 

 Zoologie ; a monograph on Nemoptera by myself in the proceedings of the Zoological Society ; Dr. Klug has also 

 given a monograph on Panorpa and Nemoptera in the BerMn Transactions ; the Panorpid:e have also beea 

 re\'ised by myself in the Transactions of the Entomol. Society of London. Dr. Erichson has published a mono- 

 graph of the singular genus Mantispa, in his Entomographien ; and a monograph on Raphidia has also been pub- 

 blished by Schneider. 



In addition to the fine monograph of Pictet upon the Phryganea? (Order'Trichoptera Kirby; family, Plicipennes 

 Latreille) noticed in our former supplementary notes, and the general works of R;uiibur, Burmeister, the first 

 part of a work by Kolenati has recently appeared at Prague, entitled Genera et Species Trichopteroruni, Pars 

 prior, 4to, with three plates. This work promises to be of great service in the investigation of this difficult family. 

 The first part comprises only the first family, Heteropalpoidea, containing the species having the nia.xillary palpi 

 of the two sexes dissimilar, divided into three tribes — 1. Limnophiloidea, divided into thirteen genera ; 2. Phryga- 

 neoidea, three genera ; 3. Sericostomoidea, twelve genera. The family Isopalpoidea, or those species having the 

 maxillary palpi alike on both sexes will form the subject of a second part. 



THE ORDER IIYMENOPTERA. (P. 581.) 



The Histoire Naturelle des Insectes ilymeneopteres, commenced by Count Saint Fargeau (in which the 

 system proposed by him of arranging the families according to their habits) has been completed in four thick 

 voluxpes, Svo. The first of these volumes contains the groups which live in societies which are either perennial 



