68 CARABID^E. CALLISTUS. 



subcordate, sides rounded in front from below the anterior 

 angles to behind the middle, then straight so as to form with 

 the base a right angle, green, pubescent, rather depressed, 

 coarsely punctured, the dorsal furrow interrupted in front and 

 terminating in a depression, base with two oblong impressions. 

 Elytra twice the width of the thorax, ovate, dilated behind the 

 middle, dull green, densely pubescent, the lateral margins testa- 

 ceous yellow dilated and denticulated before the extremity, 

 striated, the interstices finely granulated; underside of the body 

 dull black, punctured and pubescent; legs testaceous yellow. 

 Length 4J lines. 



Abundant beneath stones near streams, and in swampy places 

 near London ; on the southern coasts, as well as in many other 

 parts of England and Ireland. 



Genus 24. CALLISTUS, Latreille. 



Mentum dente medio integro, lato, obtuso. Ligula apice dilatata, 

 obtusa, paraglossis membranaceis longior. Palpi articulo 

 ultimo subovato, apice acuminato. Mandibulse breves, acutce. 

 Labrum apice truncatum. Tarsi antici maris articulis tribus 

 dilatatis, subtus dense spongiosis. 



1. C. lunatus : capite nigro cyaneo, thorace rufo, elytris flavo- 

 testaceis nigro-maculatis. 



Carabus lunatus, Fab. Ent. S. 1. 163. Fab. S. El. 1. 205. 



Anchomenus lunatus, Sturm, D. F. 5. 176. 



Callistus lunatus, Dej. Spec. 2. 296; Icon. 2. 158. pi. 89. 



Curtis, Ent. pi. 180. Steph. Hand. 1. 81, et Manual, p. 24. 



Heer, Faun. Helv. 44. 



Head large, oblong, with a cyaneous (or sometimes greenish) 

 tinge, strongly punctured ; antennae dusky, with two joints at 

 the base testaceous. Thorax testaceous red, cordate, sides 

 rounded in front and widest in the middle, very much contracted 

 behind, posterior angles acute, disk convex, very finely and 

 closely punctured, with a slender dorsal furrow abbreviated 

 before and behind, and an obsolete fovea near each basal angle. 

 Elytra ovate, shoulders rounded and narrowed, sides a little 

 sinuated, widest behind the middle, disk somewhat convex, very 

 finely punctate- striated and with the interstices closely and 

 minutely punctured and pubescent, testaceous yellow, with a 

 small rounded spot on the humeral angles, a broad transverse 

 fascia about the middle not reaching the suture, and another 

 before the apex extending across the suture and connected 

 externally with the central fascia black; underside blue-black, 



