Coleoptera from Ceylon. 151 



distinct tliougli obtuse hind angles, in some examples preceded 

 bj a slight sinuosity. In P. fimicola the sides fall obliquely 

 to the obtuse hind angle. 



Putzeys' description of the basal fold of the elytra is 

 quite applicable to the Ceylonese specimens ; but many of the 

 other details given by him seem to me fanciful or inaccurate — 

 that is, supposing the species are really the same. The fol- 

 lowing is evidently a colour variety: — 



Yar. Ferigona suffasa. 



Caput nigrum, thorax castaneo-rutus ; elytra toto castaneo-fusca 

 (apice nigi'a), vitta utrinque subinargiiiali a basi usque prope 

 apicem ibiquo intus curvata, paUide testacea. 



The difference from the type form consists in the darker 

 thorax and the extension of the large common spot of the 

 elytra to the apex. It approaches very near P. tachyo'ides^ 

 Bates, which is, however, sufficiently distinct in the more 

 tawny hue of the light parts and the more convex elytra. 



Subfamily Bembidtikje. 



Tacliyta umhrosa. 



Tachyta umhrosa, Motscliulsky, Etiid. Ent. 1862, p. ?,2 ,= Acupalptis 

 exirenms, Walker, Ann. & Mag. Nat. Hist. 1858, ii. p. 204 ? 



Dikoya. 



Very similar to the widely distributed T. nana, from which 

 it differs only in the more strongly marked and punctulated 

 elytral strite, the posterior dorsal setiferous puncture situated 

 in the fourth (instead of the third) stria, and in the lighter 

 tawny testaceous antennge. Several specimens agreeing with 

 one from Kiu-Kiang on the Yang-tsze. It is probably the 

 Acupalpus extremus^ Walker, but only a fragment of Walker's 

 type in the British Museum remains for comparison. 



§1. T ACB.Y s 2}}'op}-ie (Uctus. 

 Tachys tropicus. 

 Bemhidium tropicum, Nietner, Ann. & Mag. Nat. Hist. 1858, ii. p. 421. 

 Dikoya. 



Tachys triangularis. 

 Bembidium triangulare, Nietner, Ann. & Mag. Nat. Hist. 1858, ii. p. 422. 

 Dikoya and Colombo. 



Tachys suhvittatus. 



T. tropica et T. tnangulari atRnis, sed difFert striis prope suturam 

 utrinque 4 raulto minus impressis, magis abbreviatis et inconspicue 



