ENTOMOLOGICAL SYSTEMS. FABBICIUS. 189 



wingless insects ; but, like him, he had a most imperfect 

 conception of the latter group. His departure from the 

 orders established by Linnaeus will, by many, be ex- 

 tolled as the commencement of all the good that has been 

 since matured ; while, by others, it will be designated 

 as the first commencement of those erroneous theories 

 which, in modern times, have led us astray from nature. 

 (241.) Fabricius was the great systematist of his 

 day ; but his classification, once so prevalent, has long 

 been abandoned. He published two systems; one in 

 1775, and the other in 1798. The primary groups of 

 the latter, as drawn up by Messrs. Kirby and Spence, 

 are here subjoined ; chiefly for the purpose of showing 

 the passion for new names, which now began to arise 

 among the continental naturalists, and to illustrate the 

 different conceptions of entomological groups entertained 

 by our author from those of Aristotle, Linnaeus, and 

 De Geer : 



1. ELEUTHERATA. (Coleoptera L.) Maxilla naked, free, 



palpigerous. 



2. ULONATA. (Orthopierous Neuroptera L.) Maxilla covered 



by an obtuse lobe. 



3. SYRISTATA. (NeurojHera L.) Maxilla geniculated at the 



base, and connate with the labrum. 



4. PIEZATA. (Hymenoptera L.) Maxilla corneous, compressed, 



often elongate. 



5. ODONATA. (Neuroptera L.) Maxilla corneous, toothed, 



palpi two. 



6. MITOSATA. (Myriapoda Leach.) Maxilla corneous, vaulted, 



palpi none. 



* * 



7. UNOGATA. (Pulmonary Arachnidce Lat.) Maxilla corneous, 



armed with a claw. 



8. POLYGONATA. (Isopod and Branchiopod Crustacea Lat.) 



Palpi mostly six, maxillae many, placed within the labium. 



9. KLEISTOGNATHA. (Brachiurus, Decapod Crustacea of Lat.) 



Many maxillae without the labium, closing the mouth. 



10. EXOCHNATA. (Macrourus, Decapod Crustacea Lat.) Max- 

 illae many, without the labium covered by palpi. 



