66 CARABID^I. CHL.ENIUS. 



and granulated; underside of the body and the legs black. 

 Length 5 lines. 



This insect appears to be extremely rare in this country. Mr. 

 Stephens quotes Fen Ditton, Berks, as one of its localities, and 

 further states that Mr. Weaver captured several specimens near 

 Whittlesea Mere in August 1826. It is said to have been found 

 also in Norfolk by Mr. Skrimshire. Three examples were taken 

 more recently by Mr. Grimston at Hornsey on the Yorkshire coast 

 during a flood ; and a single individual by Mr. Haliday near 

 Athy in Ireland. 



3. C. nigricornis : viridis, pubescens ; capite sublcevi thoraceque 

 punctatissimoviridi-cupreis, hoc subquadrato, angulis posticis 

 obtusis ; elytris striatis, interstitiis subtiliter granulatis ; 

 antennarum articulo primo pedibusque nigro-piceis. 



Carabus nigricornis, Fab. Mant. 1. 202 (1787). Fab. S. El. 1. 



198. Payk. Mon. 112 (1790). Payk. Faun. 1. 154. 

 Harpalus nigricornis, Gyll. Ins. Suec. 2. 113. 

 Chlcenius nigricornis (var. b), Sturm, D. F. 5. 135. Dej. Spec. 



2. 351 ; Icon. 2. 177. pi. 92. Steph. Mand. 1. 177, et 



Manual, p. 24. Erichson, Kafer, 99. Heer, Faun. Helv.46. 

 Var. /3. antennarum articulo primo pedibusque rufis. 



C. melanocornis, Dej. Spec. 2. 350; Icon. 2. 175. pi. 92. Steph. 



Mand. 1. 78, et Manual, p. 24. Heer, Faun. Helv. 45. 

 C.fulgidus, Steph. Mand. 1. 98, et Manual, p. 24. 



Above rich green, head and thorax with a reddish coppery 

 tinge. Head triangular, convex, rather smooth, having an oblong 

 fovea on each side between the antennae connected by a transverse 

 line ; mouth, palpi and basal joint of the antennae pitchy black. 

 Thorax subquadrate, short, the width being somewhat greater 

 than the length, sides regularly and very moderately rounded, 

 base truncate, hinder angles obtuse, dorsal furrow abbreviated 

 before and behind, disk thickly punctured, base with an oblong 

 impression on each side. Elytra broad, ovate, striated, interstices 

 finely granulated ; underside dull black, pubescent, sides of the 

 thorax purplish green, thickly but not coarsely punctured and 

 transversely wrinkled ; legs pitchy black. Length 5 lines. 



The variety melanocornis differs only in having the mouth, 

 palpi, basal joint of the antennae and the legs red. C. fulgidus, 

 Steph., is an immature individual of this variety; and I may 

 here mention that C. xanthopus, Steph., is represented, according 

 to Dr. Schaum, by a North American insect. 



This species is found pretty commonly in fens, marshes, and 

 on the banks of rivers. It has been taken by Mr. Haliday at 

 Holywood in Ireland. 



