INSECTA. 6S5 



three additional genera have been proposed, namely PoljmuR, JVlycetina, and Golgia. Trochoideus Westw. is a 

 very remarkable genus belonging to this tribe, having,- the anteniiije termiiiatGil by a large, solid mass, like those 

 of the genus Paussus, -tvith wtiich the tjpit-al species was at first arranged. Redtenbacher has also reviewed the 

 European species in Gcrmar's Zeitsc-hrift, 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 

 antennm, it has received the names of Holoparamecus Curtis, ( Calyptobium Villa), Its proper relations appear, 

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

 in the French Annales, 



Thefamily of the Ladybirds ( Aphidiphaga, p. 555) has been also revised, so far as the French species are con- 

 cerned, by M. Mulsant, in his work upon thii Coleoptera of France ; whilst M. Redtenbacher has also reviewed those 

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

 to the Modern Classification of Insects/ and dividing the Securipalpes or Aidiidiphagi into two primarv groups :— 



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



2. Those with multidcntate mandibles, two genera. 



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

 thus : — 



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



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

 genus. 



2. Triehowomides, with hairy budies, divided into three tribes ; Epilachnicns, with two genera ; Scymnicns, 



with four genera; and Cocciduliens, with one genus. 



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



A careful re\'ision 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 18i4 ; and Dr. Schaum has published a notice of tho 

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

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



THE ORDER ORTHOPTERA. (P. 556.) 

 In addition to the systematic woi-ks of Bui-meister and Scrville noticed in p. 557, we are indebted to M. De Uaan 

 for another general revision of the order in the great work pul dished by the Lutch Government, illustrating the pro- 

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

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

 di^dsions as genera : — Blatta, Manti.s, 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 tho Orthoptera of Russia has been pub- 

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

 seven plates. In this work the same general division is retained, eacli 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 Prussian species, forty in numbt-r, in Vol. 

 XXVII of the Preuss. Provin. Blatt. A number of remarkable exotic species belonging to the dift'erent 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 IIEMIPTERA— SECTION IIETEROPTERA. (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; the 

 cunsideration 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 havo been recently pubUshed, the most im- 

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

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

 these insects are divided into five primary groups ; — 



1. Nepides. 2. Hydrocorizes, [NotonectidLc]. 3. Galgulites. 4. Amphibicoryzes, [Hydrometridre], and 



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



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



dites, Cimicites, Astemmites, Anisoseelites, Lygadtes, and Pentatomites, each being named after its 



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



In the "Ilistoire Naturelle dcs Insectes Hemipteres," by Messrs. ServiRo and Amy ot, the tabulation of the 



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



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



Latreille in the text, being the reverse of that adopted by the Marejuis Spinola. The first section, Geocorises, 



