^^‘‘grattr 
INSECTS. APTERA 115. Hydrachna. jn 
Green immaculate with a dcpreffed entire tail. 
In Ditches. Mull. HyJrachn^ 38. iah. 3. fig. 7. 
Bot/y roundifh-oval, dcpreffed and contrafted behind; bnaji 
yellowilh : legs hyaline. 
^“tUlalar, 
Rounded, purple with an excrcfcence each fide the tail: 
legs black. 
In wet meadows. Mull. Hyiracbn.. 39, tah, 3. Jig, 6. 
B. Eyes 2 : hack marked ivifh a fork. 
Obovate; black, the difk black with 3 reddilh fork: tail 
papillous : fore- legs thick. 
In ditches. Mull. Hydrachn. 41. tab. 4. fig. i, 2. 
Body pellucid with a white breaft : legs 3 or 4 times as long as 
the body. 
Nearly fquare, white with 3 fpots and a rufous fork : fore- 
legs thick. 
In filh- ponds. Mull. Hydrachn. 43, tah, jig. 3. 
Body pellucid glabrous ; legs twice as long as the body.- 
^'‘^‘cornis 
Obovate rufous with a yellow fork : feelers clavate : legs 
pale. 
In Ponds. Mull. Hydrachn. n, 15. 
Eyes black: feelers and legs white. 
Oval, greenifli-yellow with 8 dots and a rufous fork : legs 
fpinous. 
In Pools. Mull. Hydrachn. 45. tab. \.fig. 6. 
Body polilhed, with black eyes breaft legs and dots on the back. 
Nearly fquare, white with 5 brown fpots and a rufous fork: 
feelers long. 
In Rivulets. MuU. Hpdraclm. 47. tab. 4, 
Oval, greenilh with a deeper difk and rufous fork. 
In overflown Meadows. Mull. Hydrachn. 48. tab. 5. fig. i. 
Has the appearance of a grey dot with extended white legs. 
Oval, white, fpotted, with a clear white fork; fourth joint 
of the hind-legs lunate. 
In ditches. Mull, Hydrachn. 49. tab. 5. fg. j, 6. 
Body pellucid with large eyes ; feelers and kgs paie. 
Trifur* 
