381 



between the eyes; antennae black, joints 9 and 10 distinctly 

 shorter, 11 oval not pointed at apex. Prothorax 5x8 mm., 

 differs from stepheni as follows: — Nitid, less densely punctate 

 surface, anterior angles more widely lobate and acute (though 

 slightly rounded at apex), sides much more widely rounded 

 and more abruptly sinuate behind, the marginal channel wider 

 and more pronounced (the thickened border appearing broken 

 or subangulate on the inside at its widest part), two discal 

 foveas more pronounced, base indented near angles, posterior 

 tooth less outwardly directed. Elytra much more widely ovate, 

 widest in the middle, its costae much more sharply raised and 

 more crenulate ; the vermiculate transverse intervals much 

 more coarsely impressed and nitid ; the punctures less denned, 

 and more obscured by the irregular rugosity, the lateral row 

 of punctures less distinct and regular. Apical segments of 

 abdomen punctate, basal segments strongly striolate ; prester- 

 num punctate, its flanks nearly smooth, its process not chan- 

 nelled, its apex more rounded than in stepheni; submentum 

 nearly truncate in middle, unnotched, the lateral tooth almost 

 as in Onosterrhus, much larger and more prominent than in 

 stepheni. Dimensions — 18x10 mm. 



Bab. — New South Wales: Wollomombi (New England 

 district) (H. Cox). 



A single specimen, sex doubtful (front tarsi wanting), 

 generously presented by its discoverer, differs from stepheni, 

 as above. Its coarser sculpture, wider form, suggest an ap- 

 proach to NyctozoiluSj but the prothorax is very like that of 

 the preceding species, and also like that of some of the larger 

 species of Onosferrhus in its apparently nearly smooth surface 

 and thickly-rounded lateral border. The upper-surface of 

 both the above species is finely but distinctly punctured, in 

 stepheni the punctuation is exceptionally dense, while in coxi 

 it is more distant and distinct (no doubt owing to its nitid 

 surface). Type in author's collection. 



Styrus revolutus, n. sp. 



Elongate-ovate ; dull black, tarsi piceous, clothed below 

 with golden tomentum. 



Head densely and evenly punctate ; labrum square and 

 protuberant; epistoma straight in front, subrectangular 

 (slightly rounded) at sides, limiting suture deeply impressed : 

 the epistoma forming an angle with the strongly-raised 

 canthus ; antennae extending beyond the prothorax and setose, 

 joint 3 not quite as long as the next three combined, 8-10 

 rather squarely oval, 11 much longer than 10 elongate-ovate. 

 Prothorax 5x6 mm. (length measured in middle), widest 



