ColeojAera from Ceylon. 145 



Abacetus anomalus. 

 Abacetus anomalus, Chaudoir^ Essai Monogr. Abacetus, p. 13. 

 Colombo. 



Abacetus Nietneri. 



Abacetus Nietneri, Cliaudoir, Essai Monogr. Abacetus, p. 38. 

 Distrigus ceneus, Nietner, Ann. & Mag. Nat. Hist. 1858, ii. p. 177 

 (uom. prseocc). 



Colombo. 



Trigonotoma indica. 

 Tricjonotoma indica, Brulle, Hist. Nat. des Ins. iv. p. 333. 

 Colombo. 



Lagarus (?) impunctatus, 



Oblongus, iiiger, politus, elytris subviridescentibus ; palpis, antennis 

 et tarsis piceo-rufis ; oculis convexis ; thorace impunctato, quad- 

 ratOjlateribus fere rectis, basi utrinque suico prof undo abbreviate 

 recto ; elytris thorace vix latioribus, parallelis, striis Itevibus 

 iiovem profundis et acute insculptis, octavo et nono antice 

 approximatis, striola scutellari nulla, interstitiis subconvexis, 

 tertio impunctato ; metasterno ventrisque basi lateribus punctu- 

 latis. 



Long. 10 millim. 5 • 



Colombo, ill marshes. 



In its generic characters this Harjxilus-like Fterostichus- 

 form approaches Lagarus and Omaseus, the form of the meta- 

 thoracic episterna being nearly the same as in Omaseus niger • 

 but it differs from those and all other genera or subgenera of 

 Pterostichina3 known to me by a combination of minor 

 characters. The mentum is deeply einarginated and its central 

 tooth is broad and deeply concave without being distinctly bifid • 

 the palpi are rather slender, with cylindrical and truncated 

 apical joints ; the antennae are rather long and filiform, and 

 the second joint articulated to the middle apex of the scape • 

 the head narrowed behind the prominent eyes, with fine and 

 strongly curved frontal furrows ; the thorax is quadrate, 

 rather broader than long, with a deep sulcus similar to that of 

 the Abaceti, but distant from the base ; the elytra are equally 

 and strongly striated, without scutellar striole or puncture on 

 the third interstice ; the prosternum is strongly margined at the 

 apex, as in Lagarus ; the ventral segments are without trans- 

 verse furrows, the posterior tarsi slender and free from sulci. 

 Two examples taken by Mr. Lewis, both females ; hence the 

 form of the dilated anterior tarsi of male is unknown. 



