64 CARABID^E. OODES. 



apice truncato. Mandibulse rectiusculte, acuta. Labrum 

 apice truncatum. Tarsi antici maris articulis tribus dilatatis, 

 singulis subquadratis, subtus dense spongiosis. 



1. O. Helopioides : oblongo-ovatus, ater, elytris subtiliter punc- 

 tato-striatis. 



Carabus Helopioides, Fab. Ent. S. 1. 155. Fab. S. El. 1. 196. 



Harpalus Helopioides, Gyll. Ins. Suec. 2. 135. 



Oodes Helopoides, Sturm, D. F. 6. 66. Dej. Spec. 2. 378 ; 



Icon. 2. 201. pi. 97. Steph. Mand. 1. 125, et Manual, p. 35. 



Erichson, Kafer, 96. Heer, Faun. Helv. 47. 



Deep black. Head and thorax smooth and impunctate, the 

 latter narrowed in front, then gradually widening till it becomes 

 broad behind the middle, the posterior angles produced, the disk 

 with a faint dorsal furrow and the base destitute of fovese. Elytra 

 as broad as the thorax, oblong, the sides straight nearly to the 

 extremity and the apex broadly rounded in some examples but 

 slightly sinuated in others, convex, striated, the striae finely 

 punctulated, with two minute impressions between the second and 

 third from the suture, and a series on the exterior margin ; body 

 beneath thickly punctured on the sides ; legs black, tarsi pitchy. 

 Length 4i lines. 



The peculiarity of form in the species which represents this 

 genus must always sufficiently distinguish it, especially its broad 

 thorax equalling the elytra in width, and the oblong, convex and 

 parallel form of the entire insect. 



'It is not a very abundant species, or at any rate is rather local. 

 It is found in marshy places, in the Cambridgeshire fens, more 

 plentifully near Whittlesea Mere and at Herringstone near Dor- 

 chester ; and according to Stephens in Hackney marshes ; Bat- 

 tersea fields ; Abbots Ann, Hants ; Amesbury, Wilts, &c. 



Genus 23. CHKffiNIUS, Bonelli. 



Mentum dente medio bifido. Ligula cornea, apice libera dilatata- 

 que ; paraglossis membranaceis apice liberis, earn vix super- 

 antibus. Palpi articulo ultimo cylindrico, apice truncato. 

 Mandibulae acuta, basi crenulata. Labrum apice truncatum 

 vel obsolete sinuatum. Tarsi antici maris articulis tribus 

 dilatatis, singulis subquadratis, subtus dense spongiosis. 



1. C. sulcicollis : nigro-obscurus, pubescens ; thorace postice 

 trisulcato, punctatissimo ; elytris obsolete punctato-striatis, 

 interstitiis rugoso-granulatis ; antennis pedibusque nigris. 



Carabus sulcicollis <?, Payk. Faun. 1. 153. 

 Harpalus sulcicollis (?, Gyll. Ins. Suec. 2. 130. 



