INSECTA. 635 



three additional genera have been proposed, namely Polymus, Afycctina, 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. Kedtenbacher 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 

 antennae, 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 Aubo 

 in the French Annales. 



The family 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 the Coleoptera of France ; whilst SI. Itedtenbacher 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 primarv 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, with naked bodies, divided into three tribes, Coccinelliens (subdivided into sub-tribe8 



and groups, and containing sixteen genera) ; Chilocoriens, with two genera ; Hypcraspiens, 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- 

 chclytra, has been made by Aube, in the French Annales for 1814 ; and Dr. Schaum has published a notice of the 

 Synonymes of the British species, in the 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. 



THE OKDER ORTHOPTERA. (P. 556.) 

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

 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- 

 n a an system of names, and instead of families, sub-families, <fcc, has consequently adopted the following primary 

 divisions as genera :— Blatta, Mantis, Phasma, Acrydium, Locusta, and Gryllus. regarding all the genera of which 

 eaeli 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 Russie, 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 Synonynus 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 depieta,' 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 number, in Vol. 

 XWllnt'tlie 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 description! of numerous 

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



THE ORDER HEMIPTERA— SECTION HETEHoPTERA. (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 great, r weight than the nature of its metamorphosis ; the 

 consideration of which led LatBBille to place the 1 1, u.iptera in the situation whieh they hold in this w.irk. 



Several valuable works upon the classification of the Hemiptera hare \"<n recently published, the most im- 

 portant of which must now be concisely noticed. In the " Essai but les gernes dlnsectes, appartenants a 1'ordre 

 des Hemipteres, Una. ; on Rhyngotes Fab. et a la section des Heteropterea, Dufour," by the Marquis Bplnola, 



these insects are divided into five primary groups : — 



1. Nepides. 2. Hydrocorizes, [Notonectidse]. 8. Galgulites. 4. Amphibicoryses, [HydrometrldsBl and 



,,i ory/.es, i.r the species residing on the ground, or on plants, and i orw tponding with the Linns hi 



genus I lines ; divided into ten families, namely, the Reduvites, Coreites, Phymatites, axadit I 



dites, Oimicites, Astemmites, Anisosoelites, Lygeeltes, and Pentatomites, each being named after its 



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



In the "Histoire Natureiie des [nsecces Hemipteres," bj Messrs. Serville and amyot, the tabulation of the 



groups and the generie division is carried to a mnoh greater extent than In any preceding work. Thus the He- 



teropterous Hemiptera are divided into 868 genera, and the progression of the groups oorresponds with that of 



Latroille in the text, being the reverse of that adopted bj the Marquis Splnola. The first section, Qeoccrisas, 



