636 



H. E. ANDREWES 



Elytra convex, a fourth wider than prothorax, a half longer than wide, basal 

 border entire, sides nearly parallel, though faintly emarginate at a third from 

 base and more evidently near apex; striae fairly deep, impunctate, 9 leaving 

 the marginal channel a little behind shoulder, a short scutellary striole between 

 I and 2; intervals moderately convex, inner ones equal, outer ones gradually 

 narrowing towards apex, a tenth interval present, which gradually widens 

 behind up to a fifth from apex, where it is as wide as the inner intervals, and 

 then contracts rapidly to the apical sinuation, 3 with three pores; surface 

 smooth and impunctate. Microsculpture isodiametric and conspicuous on the 

 elytra; on the head and prothorax the meshes are much finer, isodiametric on 

 the head, slightly wider than long on the prothorax. Underside impunctate, 

 prosternal process finely bordered at extremity, metepisterna a half longer than 

 wide, last ventral segment with one seta on each side in the J", 2 in the $. 

 Femora somewhat dilated; mesotibiae ^ a little curved; metatibiae J* suddenly 

 dilated a little after middle to twice the width of the basal part, the dilated 

 part flattened; first metatarsal joint with a slight outer sulcus, joint 5 setulose 

 beneath. 



I know of no species with which I can usefully compare this, but I may 

 draw attention to one or two unusual features, viz. the very shallow basal 

 foveae of the prothorax, the practical absence of outer foveae, and the very 

 curious form of the J* metatibiae. 



Santa Clara, 3 ex. (cT?) found under stones, i, VIII. 1917. 



Pterostichus skottsbergi sp. n. — Fig. 5. 

 Length: 10 mm. Width: 3.4 mm. 



Black: palpi, joints i to 3 of antennae, and tarsi more or less dark ferru- 

 ginous, tibiae piceous. 



Body apterous. Head convex, clypeal suture fine, a slight depression at 

 each end, and a third transverse depression just behind middle, surface very 

 smooth, eyes rather flat, antennae just reaching base of elytra, tooth of mentum 

 bifid. Prothorax moderately convex, subcordate, about a fourth wider than head 

 and as much wider than long, widest a little before middle, base slightly wider 



than apex, sides narrowly bordered, gently rounded 

 in front and slightly sinuate before base, a pore 

 and seta at two fifths from apex, none visible at 

 hind angles, which are a little acute and moderately 

 sharp; median line fine, deeper close to base, front 

 transverse impression evident but shallow, basal 

 foveae short but moderately deep, outer ones ob- 

 solete, surface nearly smooth. Elytra con\'ex, 

 subovate, a fourth wider than prothorax, three 

 fourths longer than wide, a moderate emargination 

 on each side near apex; striae deep, impunctate, 

 a short striole present, intervals convex, 5 to 7 

 becoming very narrow behind, 3 with three pores, 



„. ,,. . 7 , , marginal channel widening a little behind and 



rig. 5. Pterostichus skottsbergi. ^ . . ,.,, .,.,., . 1 



X4 containmg a slight longitudmal ridge, surface smooth 



