1004 COLEOPTEEA 



between the glabrous and the pubescent joints. Elytra not at all 

 truncate ; with a slight sinuation near the extremity. Last joint of 

 maxillary palpus longer and rather stouter than the preceding joint, 

 narrowed towards the extremity and acuminate. Second joint of 

 labial palpi short and stout, minutely bisetose ; mentum with large 

 acute tooth in the middle. Male anterior tarsi with the two basal 

 joints a little dilated, their inner angles a little produced and acute, 

 squamae very obscure. Prothorax with a single lateral seta on the 

 side at the middle, and a minute one at the hind angles, none in 

 front ; base truncate, reposing on the base of the elytra, which 

 possesses a well-marked margin. 



This genus of small Carabidcz is allied to Cyclothorax, from which 

 it differs by the convex form, the remarkably abbreviate metaster- 

 num, and by the structure of the male tarsi ; the condition of these 

 feet I am not, however, able to ascertain very thoroughly. 



1799. T. puncticollis, n.s. (Sharp ; Ent. Hon. Mag., vol. xx., 

 p. 24.) Nigro-piceus, nitidus; antennis, palpis, pedibusque testaceis; 

 prothorace lateribus sinuatis, basi truncato, utrinque impresso, et 

 crebre punctate, angulis posterioribus fere rectis ; elytris profunde 

 striatis, striis fortiter punctatis, interstitiis parum convexis Isevigatis; 

 abdomine utrinque fortiter punctato. 



Long., 5mm. 



Thorax narrower than the elytra, about as long as broad, with 

 an elongate channel along the middle, with an impression at the 

 base on each side nearly equidistant from the middle and the outer 

 margin ; the whole of the base punctate, the disc nearly impunctate. 

 Elytra short and broad, convex, the shoulders much curved, the 

 eighth interstice elevated at the extremity so as to form a plica. 



I received a specimen found at Greymouth formerly from Herr 

 Reitter, and have now received the insect from Mr. Helms. I have 

 not, however, seen the male. 



1800. T. laeyiventris, n.s. (Sharp ; Ent. Mon. Nag., vol. xx., 

 p. 24.) Nigro-piceus, nitidus ; antennis, palpis, pedibusque testaceis ; 

 prothorace lateribus sinuatis, basi truncato, utrinque bi-impresso, 

 fere laevigato ; elytris interne striatis, striis remote punctatis ; 

 abdomine laevigato. 



Long., 5mm. 



This species differs from T. puncticollis in numerous respects ; 

 the thorax is less sinuate at the sides, and is almost without 

 punctuation, there being only about four or five punctures on each 

 side about the middle of the base ; the basal impression is differently 

 formed, so that, viewed in a certain manner, there appears to be a 

 second impression near the outer margin; the outer striae of the 

 elytra are quite obsolete, but the eighth interstice forms an elevated 

 plica at the extremity. 



It is from this insect that my description of the male tarsus in 

 the generic description is taken ; one of the front legs, however, 



