New or little-known Xylophilidae. 47 



Hah. N.W. Australia, Tort Darwin (./. ./. Walker). 

 A minute, delicate, oblong, pallid form, with faintly 



fusco-unifasciate elytra, a very short prothorax, and short, 

 slendei limbs. The much larger X. arcuaticeps, Pic, 

 from Queensland, is the only Australian species known to 

 me at all approaching X. darwinensis. 



56. Xylophilus luniger, n. sp. (Plate II. figs. 25, 25a, <£.) 



<J. Oblong, shining, finely pubescent, testaceous, the eyes black; 

 head sparsely, the prothorax densely, minutely, the elytra closely, 

 rather coarsely, punctate. Head short, wider than the prothorax, 

 narrowly extended on each side behind the eyes, the latter rather 

 small, distant, feebly emarginate ; antennae (fig. 25a) long, rather 

 stout, abnormal — joints 3 and 4 closely, and 5-11 loosely, arti- 

 culated, 1 stout, oval, 2 short, subglobose, 3 very small, narrow, 

 shorter than 2, 4 oblong, stout, 5 and 6 much shorter, 7 large, 

 crescentiform, 8 oblong, curved, articulated with 7 at the outer 

 horn of the crescent, and dentate at the base within, 9 somewhat 

 similar, curved, produced into a tooth at the inner apical angle, 

 10 short, 11 stout, ovate. Prothorax narrow, about as long as 

 broad, subquadrate, narrowed in front, obsoletely bifoveate at the 

 base. Elytra rather broad, oblong, subparallel, a little narrowed 

 anteriorly, deeply transversely depressed below the base. Legs 

 long, slender; posterior femora moderately incrassate; posterior 

 tibiae gradually widened to the apex. 



?. Head less extended outwards behind the eyes (appearing 

 narrowed behind them); antennae normal — short, slender, the last 

 three joints dilated into a loosely-art iculated club, 3 and 4 each about 

 as long as 2, 5-8 a little shorter and gradually widening, 9 and 10 

 strongly transverse, 11 ovate: prothorax broader and more trans- 

 verse; elytra much broader, rapidly narrowing from about the 

 middle forwards. 



Length lfr-lf, breadth H mm - (<3 90 



Hab. Moko HlNOU Island, oft" North Island. New 

 Zealand. 



One pair, from Dr. Sharp's collection, received by him 

 (apparently from Captain Broun) under the MS. name 

 Sacium ochraceum, and as the sexes of the same species. 

 The extraordinary structure of the^ antenna is suggestive 

 of that of various Bythini, the modified, loosely-articulated 

 joints 7-9 together forming a clasping-organ. The has 

 normal antennae, formed as in the same sex of X. coloratus, 

 Broun, from New Zealand, which, indeed, is wry like the 



