96 INSECTS. COLEOPTERA. 9. Gyrlnus. 
Thefe are to he found on the furface of waters, on which 
run and defcribe circles with great celeritN ; when attcfflP''^ 
to be taken, they plunge to the bottom, drawing alter tlif’ 
a bubble reiembling a glolube of qmckfilver. 
*Natator. Oval, faintly ftriate, black. 
Geoff. Inf I. p. 194, lab. 3. fig. 3. 
Inhabits ftagnant pojis ui ..'.ureps, 
Btcolor. Black, beneath ferruginous : hind-legs compreffed. 
Inhabits ii^edeii: larger than the Jaft, 
Aujiralis. Subllriate, greenilb : fliells abbreviated, i-toothcd. 
Inhabits A'fw Hodand. 
Shells truncate : 4 hmd-Iegs ferruginous. 
Smooth, black, opake : 4 hind-legs fhort, teftaceous. 
lv.hz.bKi America i larger than the lalt. 
Micans. Smooth, olive, poliOied ; lliells with a gloirv band behind' 
Inhabits Guinea, the largeft of its tribe. 
Body oWvc, with a coppery and ftlvery glofs, be neath blacl^ ' 
hind-leg! teftaceous. 
Spinofius. 
Striatus. 
Groffus,. 
Formofuu 
Orientalise 
/ 
Black, polifhed ; thorax and fhells edged with vello'>v‘ 
Ihells fpinoiK. ^ 
Inhabits Coromandel, 
ferruginous: 
Green, polilhed: edges of the thorax and ihells pale- fhel!* 
ftriate, 
Inhabits Barbary. Fhunb. No<v. Inf. 1, 27. 
Anunnee green : Head brafl'y green : front fometimes violet : 
Unate with green and violet, rounded at the tip ; legs pale. 
Beneath black : above paler, very finooth : fhells rounded 
the tip. 
Inhabits clear waters of the Cape of Good Hope. 
Beneath black; breaft, fternum and legs ferruginous ; abov*^ 
bralTy-green : tranfverfe line on the lip, 2 fpots on 
Iront, tranfverfe interrupted line on the thorax, 
ftreaks on the fhells gold red. 
Inhabits clear water of the Cape of good Hope. 
Beneath pale ferruginous, above brafty-black-'fliells each 
compreired, flightly ftriate, bronzed, 4-toothed bchiP^*' 
Body TQundiJh : fkelU as long as the bodj . 
Bcneat’’ 
