[ 6t ] 



PLATE CLXI. 



DYTISCUS MARGINAL IS. 



Large Boat Beetle. 



coleoptera. 



Wings two, covered by two fhells, divided by a longitudinal future. 



GENERIC CHARACTER. 

 Antenax: taper, or clavato-perfoliated. Feet villous and broad. 



SPECIFIC CHARACTER 



AND 



SYNONYMS. 



Black ; exterior margin of the thorax and fhells yellow. Eyes 

 large, round, black. 



Pytiscus Marginalis : niger thoracis marginibus omnibus 



elytrorumque exteriori flavis. 



Lin. Syji. Nat, 2. 665. 7, 

 En. Sv. 769. 

 Eai. Spec. Inf. I. 291. 3. 

 Enf. SyJl. Tom. i. 187. 3. 

 Dytlfcus nigro fufcus nitidus, thorace undique elytrorumque margine 



flavo. Degeer. InJ. 4. 39 1. 2. tab. 1 6. 



Hydrocaniharis noftras. Raj. InJ. 93-1. 



Mouff. InJ, 164.. 



Liji. Mut. tab. s- fig- 4^2.. 



Sulz. Hiji. InJ. tab. 6. fig. 42. 



RoeJ. InJ. 2. Aquat. i. tab. i. 



Schoeff. Icon. tab. ^. fig. 7. 

 |3. Dyt'ijcm Jem'iJiriatus fufcus, elytris lulcis dimidiatis decern. 



Lin. SyJl. Nat. 2. 665. 8.—/)?. Sv. 772. 

 G 3 The 



