64 Mr. C. G. Champion on Xylophilidae. 



inner apical angle; basal joint of posterior tarsi elongate, very 

 slender, straight, more than half the length of the tibia. 

 Length 2 mm. 



Hob. New South Wales, Sydney (Ferguson). 



One male, in perfect condition. An isolated form, with 

 peculiarly shaped posterior tibiae in the male, a rufo- 

 testaceous head and prothorax, and black, cericeo-pubescent 

 elytra. The exposed penis-sheath is long and slender. 



80. Xylophilus fracticollis, n. sp. 



Short, shining, finely pubescent; head (except in front) and 

 prothorax nigro-piceous, the basal and apical margins of the latter 

 rufescent, the antennae (the infuscate apical joint excepted), elytra, 

 and legs testaceous, the under surface obscure ferruginous ; head, 

 and prothorax very finely, sparsely, the elytra closely and more 

 strongly, punctate. Head broad, narrowly extended on each side 

 behind the eyes, the latter large and separated by about their own 

 width (as seen from above); antennae short, slender, thickened 

 towards the tip, joints 1 and 2 also stout, 3 small, 4-6 longer, 

 subequal, 10 transverse, 11 ovate, stouter than the preceding 

 joints. Prothorax small, transversely subquadrate, grooved across 

 the middle, and with a very deep, transverse, mesially interrupted, 

 depression before the base. Elytra about twice as broad as the 

 prothorax, short, subparallel in their basal half, deeply, transversely 

 depressed below the base. Legs slender, the posterior pair not very 

 elongate, their tibiae straight, gradually widened from the base to 

 the apex (thus appearing elongate-triangular), the basal joint of 

 their tarsi more than half the length of the tibia. 



Length 1| mm. (J 1 ?) 



Hob. New South Wales, Sydney (Ferguson). 



One specimen, somewhat crushed, but with the head, 

 antennae, and prothorax uninjured, and the insect in 

 sufficiently good condition for description. The sub- 

 clavate antennae, the transversely grooved, deeply im- 

 pressed prothorax (much as in X. malaccanus), and the 

 gradually widened posterior tibiae, are characteristic. 

 Compared with X. malaccanus, the present insect is less 

 elongate and very differently coloured, and the antennae 

 are otherwise formed. 



Explanation of Plates I, II. 

 [See Explanations facing the Plates.] 



