Neiv Species of Staphylrmdae from Singapore. 281 



rounded anterior angles, tlie sides almost straight and convergent 

 from thence to the obtuse posterior angles; posterior half of the disc 

 in the middle line with smooth raised line, puncturation coarse, 

 umhilicate, sparing; pubescence coarse, stiff and scanty. Elytra 

 wider than, and nearly half as long again a§ the thorax, puncturation 

 rather coarse but more obsolete and closer than that of the thorax, 

 pubescence long, stiff and yellow. Abdomen with imbricate sculp- 

 ture of the first four visi})le segments, the following with a few 

 asperate punctures; pubescence as on the fore-parts. 



Hab. Bukit Timah. Collected by G. E. Bryant. 



19 (a). Astenus castaneus, n. sp. 



Rufo-castaneous, shining; antennae slender,, jiale testaceous; 

 legs pale testaceous. Length 4-3-.5-5 mm. 



In size and build very similar to A. filum Aub6, except that the 

 head is larger and more orbicular and the antennae much longer 

 and more slender. Head large, the temples broadly rounded passing 

 insensibly into the base, sculpture close and umbihcatc. Antennae 

 with all the joints much longer than broad, the 2nd joint shorter 

 than the 1st, the 3rd longer than the 2nd, the 4th to tlie 11th differ- 

 ing but little if at all in length and thickness. Thorax narrower 

 than the head, subpentagonal, the anterior angles distinct, one- 

 fifth as long again as broad, the sides with 6 or 7 long setae. 

 Sculpture similar to that of the head. Elytra scarcely wider than 

 the thorax at the anterior angles and of the same length, more 

 shining than the fore-parts and rather lighter in coloui*, punctvu'a- 

 tion very coarse and close. Abdomen elongate, the first four visible 

 segments rather coarsely punctured in transverse rows, the fifth 

 and sixth much more finely and irregularly 'punctured ; pubescence 

 long and stiff. Anal styles elongate, lightly curved downwards. 



,?. Sixth ventral segment produced, narrowed, the sides sinuate, 

 the posterior border with a deep and moderately broad excision 

 the sides of which are parallel and the apex rounded; fifth ventral 

 segment Avith a small feeble cmargination at the middle of the 

 posterior border, in front and corresponding to this is a horseshoe- 

 shaped impression, studded with a few black granules. 



Hah. Bukit Panjang, in debris. 



22 {a). Medon (s. str.) orientalis, n. sp. 



Pitchy-red, nearly opaque, the elytra and abdomen rather more 

 shining, the former with the postero-external angles and often with 



