452 A REVISION OF THE STAPHYLINID^ OF AUSTRALIA, 



arcuata, subtus triangulariter proclucto ; CJ) supra triangulariter 

 producto, utrinque profuiide sinuato, extus denticulato, subtus 

 obtusius producto. Long. 1^-lf mm. (Fvl.) 

 Sydney, New South Wales. 



61. Placusa tenuicornis. 



Placusa tenuicornis, Fauvel, Ann. Mus. Genov. XIII., p. 575 

 (1878). 



Praecedente paulo minor, nitidula, paulo fortius parciusque 

 punctata, parcius pubescens, thorace abdomineque dilutioribus, 

 squalide flavo-piceis, hoc cingulo piceo parum indicato ; antennis 

 longioribus, tenuibus, articulo 4.° parum transverso, sequentibus 

 parum latioribus, sensim vix brevioribus, 8-10 sat transversis, 11.° 

 brevius ovato ; thorace brev T iore, lateribus angulisque magis 

 rotundatis ; $ segmento 7.° supra medio parum quadridentato, 

 utrinque sinuato, extus breviter spinoso. Long. 1 \ mm. (Fvl.) 



Australia. 



15. Dabra, gen. nov. 



Mentum transverse, short, narrowed and moderately strongly 

 emarginate in front. Ligula rather long, slender, bifid. Paraglossge 

 very short. Labial palpi 3-jointed, the basal joint rather broad, the 

 3rd about as long but much narrower than the preceding joint. 

 Maxillary palpi rather short, 1st joint very small, 3rd considerably 

 longer than the 2nd, 4th joint very small and narrow. Maxillse 

 with the internal lobe membranous and strongly ciliate on the 

 inner side almost throughout its length, corneous externally, and 

 terminating in a fine hook ; external lobe slightly longer than the 

 other, ciliate at its extremity. Mandibles simple, gradually 

 curved. Head sunk in the prothorax, rather strongly produced in 

 front. Antenna? short, moderately robust, 1st joint enlarged, not 

 quite as long as three following joints together, 2nd longer than 

 3rd, 4-10 transverse, the terminal joint elongate and acuminate at 

 the apex. Prothorax rather strongly emarginate in front, convex 

 on the disc, flat at the sides which are provided with setae ; the 

 posterior margin bisinuate, the angles somewhat produced. Elytra 



