564 



excavation , on each side of which is a long, strong, suberect 

 horn, front strongly produced into a bifid horn; punctures 

 rather sparse and small. Elytra subquadrate, the width of 

 base of prothorax ; sutural and marginal striae well-defined, 

 the others feeble but containing well-defined rows (sub- 

 geminately arranged) of rather small but deep punctures. 

 Pygidium impunctate, except at base. Spurs to hind tibiae 

 long, stout, unequal, and obtuse. Length, 13-16 mm. 



Hah. — Southern Queensland (H. H. D. Griffith, from 

 F. P. Dodd), Cunnamulla (H. Hardcastle). Type, I. 7830. 



Allied to tectus, but much smaller and with black 

 elytra. The clypeal cavity varies considerably in depth and 

 the prothoracic horns in size; on the largest specimen each 

 of the suberect horns if inclined inwards would touch the base 

 of its fellow, and the frontal one is directed well over the 

 head with each of its wings considerably wider than the 

 clypeus ; on the smallest specimen each suberect horn if 

 inclined inwards would scarcely extend more than half-way to 

 the base of its fellow, and the wings of the frontal horn are 

 feeble, the distance between their tips being considerably less 

 than the width of the clypeus. I have also seen a specimen, 

 from the Alice River, in Mr. H. W. Brown's collection. 



PSEUDORYCTES ATER, 11. sp. 



PI. xxxv., figs. 55, 56. 

 d . Deep black and shining. Lower-surface, legs, and 

 most of pygidium with black hair, upper-surface glabrous. 



Head with irregularly distributed punctures ; clypeus 

 vertical, almost transversely-elliptic, deeply concave; mentum 

 prominent and rather thin. Antennae ten-, club three-jointed, 

 the rami almost as long as the distance across the eyes. Pro- 

 thorax with a deep excavation for more than half its width, 

 each side of it marked by a long, strong, suberect horn, having 

 a small projection at about its middle, front produced well 

 over head and very widely bifurcated; excavation with short, 

 transverse, subvermiculate excavations, elsewhere with irregu- 

 larly distributed punctures. Elytra subquadrate, scarcely 

 wider than prothorax ; with almost regular rows of large 

 punctures in deep striae, but becoming irregular posteriorly. 

 Pygidium with irregular punctures, almost absent from a 

 space near apex, but dense at base. Spurs to hind tibiae long, 

 subparallel-sided, obtusely pointed and unequal. Length, 18- 

 20 mm. 



Hah.— South Australia: Ooldea. Type, I. 7822. 



Apparently allied to sulcatus, but differs from the 

 description of that species in being black, and with large 

 sublateral prothoracic horns. 



