650 Div. 3. ARTICULATA— INSECTA. Class 3. 



three additional genera have been proposed, namely Polymus, Mycetina, and Golgia. Trochoideus Westw. is a 

 very remarkable genus belonging to this tribe, having the antennae terminated by a large, solid mass, like those 

 of the genus Paussus, with which the typical species was at first arranged. Redtenbacher has also reviewed the 

 European species in Germar's Zeitschrift, Vol. V. A curious little genus which has been referred to this family, 

 has excited considerable attention on account of the singularity in the variation of the number of joints of tho 

 antenna;, it has received the names of Iloloparamecus Curtis, ( Calyptobium Villa). Its proper relations appear, 

 however, to be toward the Necrophaga. See Guerin's Revue Zool., Westwood in Trans. Entomol. See, and Aube 

 in the French Annales. 



The family of tho Ladybirds (Apbidiphaga, p. 555) has been also revised, so far as the French species are con- 

 cerned, byM.Mulsant, in his work upon the Coleoptera of France ; whilst M. Redtenbacher has also renewed those 

 of Germany, adopting for the Trimera the name of Coleoptera Pseudotrimera, proposed by me in the 'Introduction 

 to the Modern Classification of Insects,' and dividing the Securlpalpes or Aphidiphagi into two primary groups ;— 



1. Those with simple or bifid mandibles, divided into ten genera, 



2. Those with multidentato mandibles, two genera. 



Whilst M. Mulsant divides thorn into two primary groups, from the hairy or naked upper surface of the body, 

 thus :— 



1, Gymnosomidos, with naked bodies, divided into three tribes, Coccinelliens (subdivided into sub-tribes 



and groups, and containing sixteen genera) ; Chilocoriens, with two genera ; Ilypcraspiens, with one 

 genus. 



2. Trichosomides, with hairy bodies, divided into three tribes ; Epilachniens, with two genera ; Scymniens, 



with four genera; and Coociduliens, with one genus. 



A number of Russian species of Ladybirds have been described by Faldermann and Motchoulsky. 



A careful revision of the Pselaphi (which are now regarded by most writers, as most nearly allied to the Bra- 

 chclytra, has been made by Aube, in the French Annales for 1844 ; and Dr. Schaum has published a notice of the 

 Bynonymes of the British species, in tlie Zoologist for 1847. A remarkable Australian species with one-jointed 

 antennae, has been described by Hope, in the Trans, of the Entomol. Society of London. 



TIIE ORDER ORTHOPTERA. (P. 558.) 

 In addition to the systematic works of Burmeister and Serville noticed in p. 557, we are indebted to M. De Ilaan 

 for another general revision of the order in tho great work published by tho Dutch Government, illustrating the pro- 

 ductions of the Dutch settlements in the Indian Archipelago. In this fine work the author has gone back to the Liu. 

 n;can system of names, and instead of families, sub-families, &c., has consequently adopted the following primai-y 

 divisions as genera ; — Blatta, Mantis, Pliasma, Aerydium, Locusta, and Gryllus, regarding all the genera of which 

 each of these families (or genera) is composed, as sub-genera, and giving under each genus a list of tho names 

 adopted for these minor divisions, by Burmeister and Serville. The species are very carefully described, and 

 many of them beautifully represented, some of the forms being very singular, and constituting new sub-genera. 

 The Earwigs are regarded as a separate order. Another fine work on the Orthoptera of Russia has been pub- 

 lished by the Count Fischer de Waldheim, in his Entomographie de la Uussie, Tome IV, 1846, 4to., with thirty, 

 seven plates. In this work the same general division is retained, each group being regarded as a family, and a 

 considerable number of new genei'a and species described. Two papers by Charpentier, on the Synonymes of tho 

 species, in Germar's Zeitschrift, Vols. IV and V, must be referred to. Charpentier has also published a beautiful 

 work entitled ' Orthoptera descripta et depicta,' containing figures of a great number of new and rcmarkablo 

 *xotic species. Von Siebold has also published a treatise upon the Prussian species, forty in number, in Vol. 

 XXVII of tlio Preuss. Provin. Blatt. A number of remarkable exotic species belonging to the different families 

 are represented in my Arcana Entomologica, and Cabinet of Oriental Entomology, and descriptions of numerous 

 Nortli American species are given by Ilarris, in his work on the Injurious Insects of Mussachusots. 



TIIE ORDER IIEMIPTERA— SECTION IIETEROPTERA. (P. 5G3.) 

 The introduction of this order of suctorial insects between tho masticating Orthoptera and Neuroptcra, is at 

 variance with tho arrangements adopted by most recent Entomologists, who have considered the ch.aracters de- 

 rived from the perfect state of tho insect, to be of greater weight tlian the nature of its metamorphosis ; tho 

 consideration of which led Latreille to place tho Ilemiptera in the situation which they hold in this work. 



Several valuable works upon the classification of the Ilemiptera have been recently published, the most im- 

 portant of which must now be concisely noticed. In the " Essai sur Ics gernes d'inscctes, appartenants a I'ordro 

 des Ilcmiptcres, Linn. ; on Ilhyngotes Fab. et a la section des Ileteropteres, Dufour," by the Marquis Spinola, 

 these insects are divided into five primary groups : — 



1. Ncpides. 2. Ilydrocorizes, [Notonectidie]. 3. Galgulites. 4. Amphibicoryzes, [ITydrometridie], and 



5. Geocoryzes, or the species residing on the ground, or on plants, and corresponding witli the Linniioan 



genus Cimcx ; divided into ten families, namely, the Reduvites, Coreites, Phymatites, Aradites, Tingi- 



dites, Cimicites, Astemmites, Anisoseelites, Lyga;ites, and Pentatomites, each being named after its 



chief genus, and containing a considerable number of new genera and species. 



In tho " llistoire Naturelle des Insectes Ilemiptercs," by Messrs. Serville and Amyot, the tabulation of the 



groups and tlie generic division is carried to a much greater extent than in any preceding work. Tims tlie IIo- 



teroptcrous Ilemiptera are divided into 355 genera, and the progress-on of tho groups corresponds witli that of 



Latreille in the text, being tho reverse of that adopted by the Marquis Spinola. The first section, Ccocoriacs, 



