ORDINES INSECTORUM. 23 



This clafs contains the infects which com- 

 pofe the fecond article of the Coleoptera 

 in Geoffroy. 



3. Infecta Coleoptero-hymenoptera, feu He- 

 miptera, or fuch infects as have the elytra 

 half cruftaceous, or becoming membrana- 

 ceous towards their extremity. 



4. Infecta Hymeno-lepidoptera, or with wings 

 imbricated with fcales. 



5. Infecta Hymeno-gymnaptera, or with na- 

 ked and membranaceous wings •, in this 

 clafs he has not only followed Geoffroy in 

 uniting the New opt era and Hymenoptera of 

 Linnasus, but has moft unnaturally arran- 

 ged the different kinds of Grylli, as giaff- 

 hoppers, locufts, crickets, and the blatta?, 

 or cockroaches, among wafps, bees, dra- 

 gon-flies, and others of the fame nature. 



6. Infecta Diptera, or infects having two 

 wings; among thefe he has placed the 

 Coccus and Chermes, which two genera 

 feem to form a new clafs, differing from 

 all others but the Diptera in the number of 

 their wings, and from that genus in their 

 want of halteres or ballancers. 



B 4 7. In- 



