INSECTA. 683 



The gigantic Tenebrionidse of tropical Africa have oeen monographed by myself in the Transactions of the 

 Zoological Society, and in the Arcana Entomologica, Vol. II., and the singular Australian Ilelseus, by the Marquis 

 de Breme, in his series of monographs on the Heteromera, and by Mr Hope in the fifth volume of the Transac- 

 tions of the Entomological Society. Do Breme has also monographed the genera Misolampus and its allies, and 

 Cossyphus. Many Russian, Persian, and Siberian species are described by various Russian Entomologists, in 

 the Bulletin of the Moscow Society, and by Faldermann in his Fauna Transcaucasica. The Pedinites have been 

 revised by Waterliouse in Annals of Nat. Hist., Vol. XVI. 



The Stenelytra (p. 533), have also received considerable attention ; the (Edemeridaa of Europe having been mo- 

 nographed by Schmidt in the Linnoea Entomologica, whilst the transformations of Helops ater, Melandrya ser- 

 rata, Pyrochroa coccinea, Mordella fasciata, ffidemera seladonia, Boletophagus agaricola, and Diaperis Boleti have 

 been observed by Dufour and Perris in the Annals of the French Entomol. Soc, and those of Orchesia micans by 

 Brasellmann. 



The Notoxides (p. 537), of Europe have also been monographed by Schmidt in the Entomol. Zeitung, others have 

 also been described by the Marquis de la Ferte in the Annales of the French Ent. Soc, Vol. XI., and by Lucas in 

 the Revue Zoologique. 



The Mylabrides (p. 539), of Barbary have been described by Chevrolat, in SUbermann's Revue Entomol., Vol. V., 

 and some beautiful Australian species of Helopidaj represented in my Arcana Entomologica. The transformations 

 of the genus Meloe, have been investigated by Siebold in the Entomol. Zeitung ; by Newport in the Transactions of 

 the Linuoean Society; and by myself, in the Trans, of the Entomol. Society; and it is now ascertained that the 

 Triungulinus or Pediculus Melittaj is the real larva in its youngest state. Its form, however, is very greatly altered 

 before arriving at fuU size. 



The great work of Schonherr upon the Weevils, RHYNCHOPHORA (p. 539), has been continued, and at length 

 concluded (with the life of its author), in sixteen thick half volumes, and two supplemental Mantissa. Of this 

 work it will be impossible for us to give even the shghtest abstract. In fact, from the circumstance that the latter 

 volumes consist of a revision of the early ones, with great additions inserted into their places ; and from the entire 

 work being deficient in tabular synopses of the numerous genera, the investigations of this great tribe of Beetles 

 is more intricate than ever. Great assistance is, however, to be obtained from the work of Labram and Imhoif 

 which contains coloured figures of one species of each genus, but as the work appears in nimibers at wide inter- 

 vals, and with numerous additional genera, it wUI be long before the Iconography of this famUy can be before us. 

 Waterhouse has published v.irious papers containing descriptions of exotic species, in the Annals of Natural His- 

 tory, the Proceedings of the Zoological Society, and the Transactions of the Entomological Society. Other exotic 

 species are described by Chevrolat and Guerin in the Revue Entomologique. Many remarkable forms from New 

 Zealand are described and figured by White in the Zoology of the Voyage of the Erebus and Terror. Many 

 Australian species by Erichson in Wiegmann's Archives, and by Germar in the Linna;a Entomologica. Many 

 valuable remarks on the North American species are published by Harris, in his work on the injurious insects of 

 Massachusets ; whilst the Curculionidse of our own country have been revised by Mr. Walton in a valuable series 

 of articles in the Annals of Natural History. About 7500 species are now known. 



The Silesian species have been revised by Schilling, and the Russian ones by Gotsch in the Bulletin of the 

 Moscow Society fcr 1847. 



The Xylophagi (p. 542), have been studied to a great extent, and the greater portion of the genera (in fact the 

 whole, with the exception of those forming the genus Scolytus in the text), have been removed from their position 

 in this work and placed nearer to the Silphidai and other clavicorn tribes, notwithstanding the numerical variation 

 in the joints of their tarsi. Many of these groups have been revised by Dr. Erichson in his work on the Cole- 

 optera of Germany, in which tables are added containing the characters of the exotic genera. 



The natural history of Scolytus destructor, a species injmnous to the elms, has been studied by Andouin, 

 Spence, and others. The Paussida have been remonographed in my Arcana Entomologica, and the number of 

 the species neai'ly doubled, with the addition of various new genera. A remarkable memoir on this genus is 

 published by Burmeister in Guerin's Mag. de Zoologie, in which the Paussidae are considered as most nearly allied 

 to the Carabidse ; the species being now ascertained to crepitate Uke the Brachini, and to reside in ant's nests. 

 The Bostrichi have been investigated by Guerin, Bull. Soc Ent. de France, Vol. III. p. 16, by whom ten genera are 

 admitted into the group. 



Several vei-y remarkable genera have been lately added to the group, especially Acropis Bui-meister, having the 

 eyes placed on foot stalks, Langelandia Aube, destitute of eyes ; and Stemmoderus Spinola, having the thorax di- 

 lated into rounded tubercles cencealing the head 



Other singular forms are represented in my Cabinet of Oriental Entomology chiefly from India. 

 Some additions of great interest to the Longicobnes (p. 544) have also been made. Here, approaching Spondvhs 

 (p. 545) must most probably be arranged the South American genus Hypocephalus, one of the most singular of 

 known Coleoptera. It wUl, however, be necessary to establish a separate section fur its reception, as is also re- 

 quired for that of Trictenotoma, an equally remarkable genus from the East, which I have also illustrated in the 

 Cabinet of Oriental Entomology. 



A valuable work upon the Longicorncs of France has been published by M. Mulsant, who divides these insects as 

 follows : — 



Group 1. Procephalides (head slanting) divided into three families — Spondyliens, Prioniens, and Ccnunbycins. 

 Group 2. Clinocephalides (head vertical) divided into two families— Lamiens and Saperdins. 

 Group 3. Derecephalides (head fixed upon a distinct neck) divided into two families — Rhagieus and Lcpturins. 

 Many new and beautiful exotic species of Longicorn beetles are figured and described by Blanchard in the Voyage 



