710 INSECTS. APTERA. 115. Hydrachna. 
• Olchator. Eody globular with red eyes. 
Muiler Hydrach. 27, tah. l.fg. 1 5. 
Found plentifully in ftagnant waters. 
Male greeiufh fpotced ; female blueilh immaculate aad twice ** 
TahulaUr. 
Baccimtcr 
^ fpotted difk; tai! cylindric* 
In ftagnant wafer; Mull. Hydr. 29. tah. 2. Hg. 6, 
id 
Obovate red, and black behind; tail cylindrical yellow aH' 
narrowed at the bale. ^ 
30. tab. l.fg. I. 
Body beneath black: eyes rcddilb ; % black, 
Culpidator. Brown; truncate before and mucronate behind - tail <!«' 
prelTed 2-toothed. .“'-uwm . tau 
In Fiftponds Mull. Hydrach. 3,. tab. z.fig. . 
td a^r'Sv'rr’’^*'' fore-p^ft.ihind narro.wd 
and ^ armed t.ith an ereft triangular fpine : eye, black; 
Pudulator, 
M lb at or, 
Maculator 
with obtufe angles. 
Body finLtb'and gen^ly^fi;r^dwid; Jonf^elli. 
11 
’Brictijpulu' 
tor. 
£ margin I- 
tor. 
&ir.uator. 
Rounded, cinereous, fpottcd and mucronate behind : ta'- 
deprelTed 3 -toothed, 
In tliwhes. Mall. Hydrach. 34. tab. 2.fg. u 
Bread whitilh ; legs green. 
toothed on t!ie back : tail depreffed 3' 
In pools. 'muU. Ihdrach. 34. tab. i.fg. 2. 
Body fubieticulate : bread blackilh : feelers and legs whitilh; 
R deprelfcd emarginate. 
p b°S=; Hydraclm. 34. tab. 3. fig. 4. 
Rcfeinblcs H. pullulator. Feelers and legs greenilh. 
Grey , t^he back ycllowilh on the fore-part and tri-pun< 3 'if^‘^ 
behind : tail dcprelfcd fi'miate. 
in ftagnant water. Mull. Hydrach. 37. tabs 2 da c 
Body reticulate : feelers and legs whirl ^ 
