32 CARABIDJE. DYSCHIRIUS. 



truncate in front, rather widest behind the middle, with a distinct 

 dorsal line bordered by some transverse wrinkles and with the 

 usual impression in front furnished with numerous rugose longi- 

 tudinal stria? in the c, glabrous in the ? . Elytra ovate, convex, 

 base sloped towards the humeral angles which are prominent, 

 sides rather narrowed in front, then rounded, and the apex a 

 little contracted, punctate-striated, more faintly at the extremity, 

 interstices with three impressions ; the anterior tibiae armed with 

 two distinct teeth, of which that at the apex is largest, longest 

 and most acute. Length li line. 



This species is variable in form and somewhat in colour. M. 

 Putzeys quotes four varieties, all of which blend more or less 

 into each other. The first, which may be considered the type, as 

 it comprehends the greatest number in the Dejeanian collection, 

 has the thorax rather narrowed in front, the anterior angles rect- 

 angular, and the elytra about twice as long as they are wide, 

 their base truncate, shoulders prominent, sides widest towards 

 the middle and contracted behind, the striae unequal but 

 distinctly marked to their extremity. The second variety has 

 the thorax narrower and very globose. The third has the thorax 

 also narrower, but more elongate, more contracted before and 

 behind, the elytra are wider and the striaa more regular, and the 

 punctures coarser. The fourth variety has the elytra longer and 

 their base more rounded. 



D. tristis, Stephens, is a dark variety of this species, to which 

 also aratus, Haliday, and pusillus, Stephens (not Dejean), must 

 be referred. The true Clivina pusilla, Dej., is from the Caucasus. 



This species is widely distributed, and occurs in England, 

 Scotland, and (very rarely) in Ireland. I have taken it in pro- 

 fusion in the muddy deposits in the fens about "Whittlesea Mere. 

 The variety aratus, with a fold down the forehead, was found 

 near Holywood in Ireland. Some remarkably slender examples 

 occur in the Isle of Wight, and both there and at Whittlesea 

 Mere occasional specimens of the black or blue-black variety are 

 found. 



10. D. globosus : nigro-ceneus, nitidus ; thoracerotundato, elytris 

 ovatis, striato-punctatis, apice l&vibus, tibiis anticis extus 

 bidenticulatis. 



Scarites globosus, Herbst, Archiv, 142. 58. t. 29 (1783). 

 Dyschirius globosus, Putz. Mon. 19. 12. 

 Scarites gibbus, Fab. Ent. S. 1. 96 (1/92). 

 Clivina gibba, Gyll. Ins. Suec. 2. 171. Dej. Spec. 1. 428 ; 

 Icon. 1. 227. pi. 25. 



