ee 4) 
PR aT RnR Xvat. 
NEPA C TEN BREA. 
Commen WatTER SconPION. 
HEMIPTERA. 
GENERIC CHARACTER. 
Beak infle&ted : antennz fhort: wings four, folded crofswife, dies 
riaceous on the anterior part: fore legs cheliform, the other four 
formed for walking. 
SPECIFIC CHARACTER 
AND 
SYNONYMS. 
Cinereous: thorax unequal: body oblong, ovate, terminating in 
two long briftles. © 
Nepa CINEREA: cinerea, thorace ineequali, corpore oblongo ovato. 
Linn. Fy. Suec. 906. - 
Nepa CinereA: cauda bifeta, corpore ovato. Fabr. fp. Inf. 2. 
p- 333. nm 5. Deen 
Nepa Scorpio aquaticus. Degeer, Inf. 3. p. 361. n. 1. 2.18. f. 1. 
Scorpio paluftris. Mouff. Inf. 321. 
Scorpio paluftris ad cimices referenda. Haj. Inf. 58. 
Araneus aquaticus. Bauh. Ballon. 212. f. 2. 
There are three {pecies only of this genus common to our waters, 
of which this is the moft frequent. Its fize is much inferior to fome 
{pecies that occur in watery places in het countries, one of which in 
: _ particular 
