284 H. W. BATES 



epistoma arcuatim emarginatum, fronte antice medio elevata 

 areaque elevata medio carinulata, vertice utrinque prope oculum 

 carinato. Thorax valde convexus, ovatus, antice fortiter angusta- 

 tus, lateribus fere usque ad basin marginatis, sulculo antere - 

 marginali elongato-punctato. Elytra postico paullulum angustata, 

 usque ad apicem striata, striis versus basin crenato -punctulatis, 

 2°'*'' et 3.^* prope basin et apicem tenuioribus , interstitio 3.'° 

 tripunctato. — Long. 3 ^jo millim. 

 Senmigion. Two examples. 



36. Dyschirius sp. ? 



Tenasserim. One example , species indeterminable. 



Subfamily SIAGONINAB. 



37. Siagona atrata, Dejean, Sp. Gen., Col. I, p. 360. 

 Rangoon; Tikekee (Pegu). 



38. Siagona subtilis, n. sp. 



S. Baconi (Chaud.) affinissima, differt tantum pedibus nigro- 

 piceis elytrisque subtiliter piloso-punctulatis. Caput ( 9 ) mediocre, 

 fronte sparsim punctate, carinis lateralibus antice sicut in S. Ba- 

 coni sulculo obliquo interruptis , sulco transversali occipitali acute 

 impresso sed baud profundo, collo laevi. Thorax fere aequaliter 

 subsparsim grosse punctatus, sulco utrinque omnino impresso. 

 Elytra depressa, oblonga, humeris distinctis, subtiliter undique 

 subsparsim piloso-punctata. — Long. 12 72" -^^ millim. 9 . 



Rangoon; Senmigion; Palon (Pegu). 



Six examples ; all females, consequently I am unable to say 

 whether the mandibles of the /" have the remarkable develop- 

 ment shown in S. Baconi (/". 



39. Siagona angulifrons, n. sp. 



S. Baconi (Chaud.) proximo affinis ; differt inter alia carinis 

 frontalibus antice geniculatis nee interruptis. Mediocriter depressa, 

 piceo nigra nitida, pedibus, palpis et antennis castaneo-fuscis vel 



