ENTOMOLOGY. 



665 



geachte Sche/izelln of Nederlandachc Insecten. Amster- 

 dam. In three volumes, quarto. 



Planchea enlumintes, fiar Daubenton le jeune. Folio. 

 This work contains figures of several very rare insects, 

 principally of the lepidopterous order. 



E/i/iemerides Academics Ceaaree JYatura Curioaorum. 4to. 



Erucarum Ortus, Mimcntum et Paradoxa Metamor- 

 fthosis, par Mariam Sibillam Merian. Amstclodami. 



Johannis Eusebii Voet Descri/ilionea et Icones Colco/i- 

 Cerorum. Quarto. 



Liechtenstein Catal. Mus. Holthuysen. 



Schrtften d. Geaellachaft JVaturforschenden Freundc 

 zu Berlin Quarto. 



Abhandlungen der Halliachen A'aturforacheuden Geaell- 

 achaft. Dessau uml Leipzig. Octavo. 



JVova Commentaria Petrofiolitana. Quarto. 



George Heinrich Barowsky Gemeiniitzige ft'aturgc- 

 schichte des Thierreichs. 



Bocks Naturgcacfnchte voii Preuten. Tom. 5. 



Dominicus Cyrilli Entomologie JVea/iotitanis Speci- 

 men. 



Johanno Lconhard Frischs Beachrcibung von allerley 

 Inaectenin Deutachland 13 Theile. Quarto. 



Gleditsch Einleitung in die Foratwisaenachaft. 



Hamburgischcs Magazin, oder gesammlete Schriftei* 

 mis der JVaturforchurig, &c. 



Herbst Gemcinnutzige JVaturgeachichte. 



Petri Lolling Iter Hisfianicum. Octavo. 



Georgius Maregraat de Leibstatt Historia A'aturalis 

 Brasilia. 



Filler et Mittcrpacher Iter fier Poaeg. 



Nicolas Robert S/iecies Florum Faria, eneia tabulis 

 Paris. Folio. 



Neuer Schau/i/az der A'atur. 



Schmeidleina Taschenbuch fur Insectenfreunde. 



CLASSIFICATION. 



By this term, wc mean the distribution of insects into 

 subclasses, orders, tribes, families, genera, and species; 

 and we shall take our outline from the system proposed 

 by Dr Leach, of which the following is a tabular view. 



Subclass I. AMETABOLIA. 



Insects undergoing no metamorphoses. 



Order I. Thysanura. Tail armed with setae. 

 Order II. Anopluka. Tail without setae. 



Subclass II. METABOLJA. 



Insects undergoing metamorphoses. 



Century I. Elythroptera. Insects with elytra. 



Cohors. I. Odontostoma. Mouth with mandibles. 



* Metamorpiioses incomplete. 



Order III. Coleoptera. Wings transversely fold- 

 ed; elytra crustaceous, covering the wings, with the su- 

 ture straight. 



** Metamorphoses nearly coarctate. 



Order IV. Strepsiptera. Wings longitudinally 

 folded ; elytra coriaceous, not covering the wings. 

 *** Metamorphoses semi-complete. 



Order V. Dermaptera. Wings longitudinally and 

 transversely folded; elytra somewhat crustaceous, abbre- 

 viated, with the suture straight. 



Order VI. Orthoptera. Wings longitudinally 

 folded ; the internal margin of one elytron covering the 

 same part of the other ; elytra coriaceous. 



Order VII. Dictuoptf.ra. Wings longitudinally 

 folded twice or more ; elytra coriaceous, nervous, one 

 decussating the other obliquely. 



Cohors. II. Siphonostoma. Mouth with an articulated 

 rostrum. 



Order VIII. Hemiptera. Elytra somewhat crus- 

 taceous, or coriaceous ; towards the apex generally mem- 

 branaceous, horizontal, one decussating the other ob- 

 liquely. Metamorphoses half complete. 



Order IX. Omoptera. Elytra entirely coriaceous, or 



membranaceous, and meeting obliquely, with a straight 



suture. Metamorphoses semi-complete, or incomplete. 



Century II. Medamoptera. Insects without wings 



or elytra. 



Order X. Aptera. Mouth with a tubular sucking 

 rostrum. Metamorphoses incomplete. 

 Century III. Gymnoptera. Insects with wings, but 

 no elytra. 



Vol. VIII. Part II. 



Cohors. I. Glossostoma. Mouth with a spiral tongue. 



Order XI. Lepidoptera. Wings four, membra- 

 naceous, with pterigostea, covered with meal-like scales. 

 Cohors. II. Gnathostoma. Mouth with maxillae and 

 lip. 



Order XII. Trichoptera. Wings four, membra- 

 naceous, with pterigostea, and hairy. 

 Cohors. III. Odontostoma. Mouth with mandibles, 

 maxillae, and lip. 



Ordeit XIII. Neuroptera. Four highly reticu- 

 lated wings, generally equal in size; anus of the female 

 without a sting, or compound borer. 



Order XlV. Hymenoptera. Four venose wings, 

 hinder ones smallest; anus of the female with a sling, 

 or with a compound borer or oviduct. 

 Cohors. IV. Siphonostoma. Mouth tubular, formed 

 for sucking. 



Order XV. Diptera. Wings, and halteres or ba- 

 lancers two. 



Subclass I. INSECTA AMETABOLIA. 



Order I. THYSANURA. 



Tail furnished with setae, or filaments. Mouth with 

 mandibles, palpi, labium, and labium. 



The bodies of the animals which compose this order, 

 are generally covered with scales or hair. Their motion 

 is extremely rapid, or performed by leaping. 



Tribe I. Lf.pismides. 



Palpi very distinct and prominent, or exserted. An- 

 tennae composed of a vast number of very short joints. 

 Tail with three exserted setae. 



Family I. Lejiismida. 



Body depressed, and moving with a running motion. 

 Tail with three nearly equal filaments. 



Genus I. Lepisma. Linn. De Geer, Fabr. Latr. 



Skiouha Brown. 



FounioiNA. Geoff. Lamarck. 



Antennae inserted between the eyes. Maxillary palpi 

 slender, composed of five joints, the last of which is elon- 

 gate, and very slender. Labial palpi with their joints 

 compressed, dilated, and round. Eyes small and remote. 



Sfi. 1. Sacharina. Body covered with silvery scales. 



Lejiisma Sac/iarina. Linn. Fabr. Latr. 



4P 



