606 NEW SPECIES OF AUSTRALIAN COLEOPTERA, 



Antennje slender, reaching to about midway on the elytra; 1st 

 joint long, 2nd very short, 3rd-llth equal, or very gradually 

 decreasing, and becoming more slender towards the apex. Pro- 

 thorax transverse, with a very shallow depression on each side at 

 the base. Scutellum quadrate. Tibise depressed-serrate exter- 

 nally; spurs to the posterior slender, equal, about two-thirds as 

 long as the 1st tarsal joint, the intermediate and anterior spurs 

 unequal in each, the longest about two-thirds the length of the 

 1st tarsal joint, the other about a third; tarsi slender, 1st joint as 

 long as 2nd and 3rd combined. Males much smaller than females. 

 Length 4i-7|-, width 1-2 mm. 



This is the common species; I have obtained it in numerous 

 places in N.S.W., but nearly always at night-time, when it is 

 very active, running in and out of crevices in bark. 



Orchesia Macleayi, n.sp. 



Elongate, Ijrownish-red; with the head, pro-, meso-, and meta- 

 stex'num darker. Densely and minutely punctate all over, and 

 covered with a silk}'^ yellowish pubescence, densest on the elytra, 

 legs and abdominal segments. 



Antennae scarcely reaching beyond prothorax; after the 2nd 

 the joints gradually increasing in length and thickness; 11th as 

 long as the two preceding combined, but not as thick. Prothorax 

 broadly transverse. Scutellum short and broad. Posterior tibiae 

 with spurs as long as themselves; 1st joint of tarsi much longer 

 than tibite, and longer than following joints united; intermediate 

 tibije about as long as the tarsi, the longest spur about half the 

 length of the 1st tarsal joint, the shortest aljout a fifth. Length 

 5^, width 2 mm. 



Hah. — Dalmorton (Lea), Kiama (Maclea}^ Museum). 



The present species differs also from 0. elongata in being lighter 

 in colour, shorter and broader; the pubescence is longer, punctures 

 deeper, the depressions at the base of the prothorax more con- 

 spicuous, the tibiae not serrate; neither does there appear to be 

 so great a disparity in the size of the sexes as in that species. 



