48 NORTHERN ZOOLOGY. 



DESCRIPTION. 



Body piceous, glossy. Head underneath, nose, mouth, and oral organs — except the palpi which 

 are pale yellow — and antennas rufous ; three first joints of the latter paler than the others : pro- 

 thorax rufous, rather longer than wide, between square and obcordate ; basilar impressions single, 

 very slight, punctured, and black : elytra rufous, with a broad black stripe adjoining the suture and 

 parallel with it ; furrows rather deep, impunctured : legs pale yellow. 



N.B. In the majority of specimens the black stripe of the elytra is very faint, and in some 

 evanescent, and the impressions as well as the rest of the prothorax rufous. 



(70) 4. * Trechus immunis. Impunctured Trechus. 



T. (immunis) piceus, nitidus ; ore, antennis, pedibusque, rufis ; prothorace obscure rufo ; Jbveis posticis impressis, Icevibus. 

 Impunctured Trechus, piceous, glossy; mouth, antennce, and legs, rufous; prothorax obscurely rufous, with the basilar 

 impressions rather deep, impunctured. 



Length of the body ]J lines. 



Two specimens taken with the preceding species. 



DESCRIPTION. 



Similar to T.Jlavipes but smaller, the nose is piceous, the thorax is more dusky; dorsal channel 

 indistinct ; basilar impressions deeper and impunctured : elytra dark piceous with merely the bead 

 of the lateral margin rufous ; the furrows also are more lightly drawn : legs darker. 



(71) 5. * Trechus similis. Similar Trechus. 



T. (similis) niyer, nitidus ; ore, antennis, prothoracis elytrorumque Umbo, pedibusque, flavo -rufis ; prothorace postice punctulalo . 

 Similar Trechus, black, glossy; mouth, antennae, limb of the prothorax and elytra, and legs, reddish-yellow ; prothorax 

 punctured at the base. 



Length of the body 3^ lines. 



Two specimens taken in Lat. 54°. 



DESCRIPTION. 



Body black, glossy. Mouth reddish yellow ; palpi yellow ; . upper-lip and mandibles rufous, the 

 latter black at the tip ; antennas dusky-rufous, three first joints more yellow : prothorax between 

 obcordate and square, with the whole of the base distinctly and grossly punctured ; basilar impres- 

 sions shallow ; limb of the prothorax is reddish-yellow, the disk is occupied by a large square black 

 spot : the suture, lateral margin, and apex widely, and the inner base of the elytra, are reddish-yellow; 



