CARABIDJE. ODACANTHA. O 



It is very rare in England. In 1815 several examples were 

 captured near Hastings and Favershain ; since which time it does 

 not seem to have occurred till 1845, when I captured three 

 specimens at Luccombe in the Isle of Wight, from the crevices 

 of a clay bank, and for several succeeding seasons met with it 

 sparingly during the months of March and April in the same 

 locality. It has been found also at Lyme Regis, Dorset, by 

 Mr. F. Walker. 



Genus 2. ODACANTHA, Paykull. 



Mentum dente media integro. Ligula apice rotundata ; paraglossis 

 membranaceis, apice prominulo, ligulam hand superantibus. 

 Palpi articulo ultimo acuminato. Tarsi articulo quarto in- 

 tegro ; unguiculis simplicibus. 



1. O. melanura: viridi-cyanea, antennis basi pectore pedibus 

 elytrisque testaceis, his apice geniculisque nigro-cyaneis. 



Attelabus melanurus, Linn. S. N. 2. 620. 



.Odacantha melanura, Payk. Faun. 1. 169. Fab. S. El. 1. 

 228. Gyll. Ins. Suec. 2. 177. Dej. Spec. 1. 176; Icon. 1. 

 63. pi. 7. Steph. Mand. 1. 14, et Manual, p. 6. Curtis, Ent. 

 pi. 227. Erichson, Kafer, 27. 



Head black and shining, very large and dilated on each side 

 about the middle where the eyes are placed, having behind the 

 latter an oblong fovea; the first, second and third joints of the 

 antennae red, the rest dusky. Thorax bluish green, long, 

 cylindric, deeply punctured. Elytra elongate, rounded at the 

 shoulders, sides parallel, apex truncated obliquely, reddish testa- 

 ceous with the apex shining blue-black; body beneath bluish 

 green, with the breast red; legs red, the joints and tarsi black. 

 Length 3 lines. 



This insect is extremely abundant in the fens of Cambridge- 

 shire and at Whittlesea Mere among the sedge and refuse in 

 May, June, September and October. It is found also, as Mr. 

 Stephens informs us, at Horning and Fakenham, and on the 

 banks of the river Yare in Norfolk, and at Crwmllyn Bog near 

 Swansea. 



Genus 3. DEMETRIAS, Bonelli. 



Mentum dente medio integro. Ligula apice rotundata ; paraglossis 

 membranaceis , ei tequalibus, apice singulafim rotundatis. Palpi 

 articulo ultimo acuminato. Tarsi articulo quarto bilobo ; un- 

 guiculis pectinatis. 



