CLASS V. IXSECTA. 135 



he separated the Vermes, as Aristotle had done before him, and estii- 

 bhshed them as a class distinct from Insects. 



Schseflfer, in If-ll, published a valuable work, under the title Icones 

 Iiiscctonan circa Raflsbonam indigenorum. The classilication proposed 

 by the author difters entirely from that of Linne, and approaches in 

 some respects that proposed by Geoffroy. 



In 1764, GeoftVoy published his most valuable System of Insect*;, 

 under the title Hisloire abngee de$ Insectes, c^c. in which tliese ani- 

 mals are arranged into six sections. 



In 177(3, J. C. Fabricius, a pupil of Linnc, published a new system 

 of entomology, under the title Si/Hte/na Entomologue, in which the 

 principles of a new mode of classification, founded on the organs of 

 deglutition and mastication, is for the first time developed. This sy- 

 stem, which has undergone several modifications, is named the Ciba- 

 rian St/stcin. 



Scopoli, in 1777, published his Introductio ad Historiam Naturaknif 

 in which work he divides insects into five tribes, under the singular 

 appellations of, 1. Swuiiuncrdaim-Lucifuga ; 1. (icofj'ro^-Gi//nnopteru; 

 3. Roeselii-Lepidoptera ; 4. Reaumiiru-Froboscidea ; 5. Frischii-Coleoptera, 

 identifying each tribe by the name of each author, who has, in his opi- 

 nion, been most successful in the explanation of that to whicii his 

 name is attached. 



The Lucif'tiga includes the lice ; Gj/mnopfcra, his halterafa, aculeafa, 

 and caudiita : Lepidoptcra, the moths and butterfiies : Pi-oboscidea he 

 has divided into terrestrial and aquatic; and the Coleoptera he divides 

 into those inhabiting water, and those the land. 



In 1780, Linne produced the twelfth edition of his St/sfema Xafur^e, 

 which was the last systematic work of that illustrious naturalist. 



In 1793, P. A. Latreille published his Precis des Caractlrcs Gene- 

 riqitcs des Insectes, in which he divided Insects into I. Axle's : 1. Cole- 

 optera, 2. Ort/ioptcra, 3. Hemiptcra, 4. Neuroptcrcij 5. Lepiduptera, 

 II. Apt.e^res : 6. Sucloria, 7. Tliasynowa. 



In 1798, J. C. Fabricius produced his last general systematic work, 

 the Supplenicntum EnfoniologicE S^stefnatiae, which presents an outline 

 of his system in its latest state ; and which, being the result of much 

 knowledge, demands a considerable portion of attention. 



In the Erdomologie Helvetirjue, a work published in 1798, ClairvilLe, 

 its author, has arranged Insects in the following manner : 



* PTEROPHORA; Mandibulata. With wings and jaws. 



Section 1. Elytroptera. Wings crustaceous. 



2. Deratoptera. Wings coriaceous. 



3. Dictyoptera. Wings reticulated. 



4. Phleboptera. wings veined. 



