136 MODIRN SYSTIjrl 



** PTEROPHORA; Haustellata. With wings and a haustellum. 



Sections. Halteriptera. Wings with poiscrs. 



6. Lepidoptera. Wings with powder. 



7. Hemimeroptera. \Vings partly obscure, partly diapha- 



nous. 



*** APTERA; Haustellata. Without wings ; with a sucker. 



8. RoPHOPTERA. Sucker sharp. 



**** APTERA; Maxdibulata. Without wings, with jaws. 



9. Pododunera. Legs formed for running. 



Tn 1800, Cuvier, with the assistance of Dumeril, pid^lished his 

 Anatomic Coinpurce, in which the organization of Insects is treated of 

 at great length. 



In 1801, J. B. Lamarck produced his Sijstane dcs Animaux sans Ver- 

 tibres, in which work he has arranged some of the gemune Insects 

 with the Aruchnuida ; the rest he distributes into the following Orders ; 



* With mandibles and jure s. 



Order I. Coleoptera. II. Ortiioptera. III. NeurOptera. 



** With mandibles, and tcith a kind of pi'oboscis. 



Order IV. IIymejcoptera. 



*** iVo mandibles. A t7mnk or sucker. 



Order ^V. Lepidoptera. VL IIemiptera. VII. Diptera. VIII, A- 

 ptera. 



In 1806, Latreille published his Genera Cntstaccoruni ct Tnsectorum, 

 in which he has denominated the true Insects Insecta Fterodictra ; 

 and has arran";ed them in the following manner : 



Century I. ELYTHROPTERA. 



Elytra two, covering the wings entirely. 



Cohors I. Odontota. 

 Mouth with mandibles, maxillcc, and lip. Wings folded. 

 Order I. Coleoptera. II. Ortiioptera. 



Cohors II. Sipiionostoma. 

 Order III. Hemiptera, 



Century II. GYMNOPTERA. 



WinQ;s naked. 



