INSECTA. 685 



tliree additional genera have been proposed, namely Polymus, Alycetina, and Golgia. Trochoideus Westw. is a 

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

 of the genus Paussus, with which the typical species was at first arranged. liedtenbachcr 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 the 

 antennie, 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. Soc, and Aubo 

 in the French Annales. 



The family of the Ladybirds (Aphidiphaga, p. 55-5) has been also revised, so far as the French species are con- 

 cerned, by M. Mulsant, iu his work upon the Coleoptera of France ; whilst M. Redtenbacher has also reviewed 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 Securipalpes or Aphidiphagi into two ])rimary groups : — 



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



2. Those with multidentate mandibles, two genera. 



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

 thus : — 



1. Gymnosomides, ■nith naked bodies, divided into three tribes, Coccinelliens (subdivided into sub-tribes 



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

 genus. 



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



with four genera; and Cocciduliens, 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- 

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

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

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



THE ORDER ORTHOPTERA. (P. 556.) 

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

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

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

 na'an system of names, and instead of families, sub-families, &c., has consequently adopted the following primary 

 divisions as genera .•— Blatta, Mantis, Phasma, Acrydium, 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 the 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 Kussie, 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 genera and species described. Two papers by Charpentier, on the Synonymes of the 

 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 remarkable 

 exotic species. Von Siebold has also published a treatise upon the Pi-ussian species, forty in number, in Vol. 

 XXVII of the 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 

 North American species are given by Harris, in his work on the Injurious Insects of Massachusets. 



THE ORDER HEMIPTERA— SECTION HETEROPTERA. (P. 563.) 

 The introduction of this order of suctorial insects between the masticating Orthoptera and Neuroptera, is at 

 variance with the arrangements adopted by most recent Entomologists, who have considered the characters de- 

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

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



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

 I.ortant of which must now be concisely noticed. In the " Essai sur les gernes d'insectes, appartenants a I'ordre 

 des Hemipteres, Linn. ; on Rhyngotes Fab. et a la section des Heteropteres, Dufour," by the Marquis Spinola, 

 tliese insects are divided into five primary groups : — 



1. Nepides. 2. Hydrocorizes, [Notonectida>]. 3. Galgulites. i. Amphibicoryzes, [Hydromctridae], and 



5. Geocoryzes, or the species residing on the ground, or on plants, and corresponding with the Linna-an 



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



dites, Cimicites, Astemmites, Anisoscelites, Lygicites, and Pentatomites, each being named after its 



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



In the " Histoire Naturelle des Insectes Hemipteres," by Messrs. Serville and Amjot, the tabulation of the 



groups and the generic division is carried to a mnch greater extent than in any preceding work. Thus the II e- 



teropterous Hemiptera are divided into 355 genera, and the progression of the groups corresponds with that of 



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



