CARABID^E. PRISTONYCHUS. 73 



broader, smoother and flatter, the punctured striae much finer 

 and almost obsolete at the apex and on the sides, having three 

 equidistant larger impressions between the third and fourth striae. 

 Length 4 lines. 



Sparingly distributed on the Scotch mountains. 



Genus 27. PRISTONYCHUS, Dejean. 



Mentum dente medio emarginato. Ligula apice truncata ; para- 

 glossis linearibus, earn paulum superantibus. Palpi articulo 

 ultimo cylindrico. Mandibulse rectiusculce, acutce. Labrum 

 quadratum, apice leviter emarginatum. Tarsi antici maris 

 articulis tribus dilatatis, subtus biseriatim pectinato-setosis, 

 unguiculi intus basi subtiliter serrati. 



1. P. terricola: apterus,nigro-piceus; thoracesubcordato,postice 

 utrinque impresso ; elytris obscure cyaneis, striatis, striis 

 subtilissime punctulatis ; antennis pedibusque fusco-piceis. 



Carabus terricola, Herbst, Archiv, 164 (1794). 111. Kafer, 1. 



184 (1798). 

 Pristonychus terricola, Dej. Spec. 3. 45 ; Icon. 2. 275. pi. 107. 



Steph. Mand. 1. 85, et Manual, p. 25. Heer, Faun. Helv. 53. 

 Carabus subcyaneus, 111. Mag. 1. 57 (1801). 

 Harpalus subcyaneus, Gyll. Ins. Suec. 2. 91. 

 Sphodrus subcyaneus, Sturm, D. F. 5. 151. 

 Pristonychus subcyaneus, Erichson, Kafer, 105. 



Beneath pitchy black, above shining black ; elytra blue-black 

 or cyaneous. Head oblong with an impression on each side be- 

 hind the antennae, connected by a transverse raised line in front ; 

 antennae and palpi pitchy. Thorax cordate, anterior angles 

 produced, sides regularly and evenly rounded till behind the 

 middle, then narrowed towards the posterior angles, which are 

 acute and prominent, disk transversely wrinkled, with a faint 

 dorsal line touching the base, but terminated in front by a tri- 

 angular depression, base with two foveae ending above in a curved 

 stria. Elytra ovate, regularly striated, the striae finely punctured, 

 margins with a series of deeper impressions ; legs pitchy black. 

 Length 7 lines. 



Common. 



Genus 28. SPHODRUS, Clairville. 



Mentum dente medio brevi, emarginato. Ligula lata, apice trun- 

 cata ; paraglossis linearibus, earn superantibus. Palpi articulo 



