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PLATE XVIII, 



NEPACINEREA, 



Water Scorpion, '"'"- 



Hemiptera. I 



GENERIC CHARACTER, 



Antennas, or fore legs, cheliform, wings croffed and complicated } 

 fore part coriaceous. 



SPECIFIC CHARACTER, 



Black brown. Head fmall. Antennae cheliform. Thorax almoft 

 fquare. Target large, brown. Shells large. One joint in each foot. 

 I^ength near an inch. In the female the abdomen terminates in two 

 long appendices. Four legs only, 



There are three fpecies only of this genus common to our waters, 

 plough the waters of hot countries abound with various kinds, fome 

 confiderably exceeding in fize even our Sphinx Atropos. 



The Infe£l finks its eggs into the cavity of a rufh, or other aquatic 



plant, whence the larvae are hatched. The perfect infedl: is found in 



4 J"n^> 



