by f. w. coding. 89 



Descriptions of the Species not included in the Synopsis. 



Genus (?) Oryrhachis. 



(?) 0. contorta, Walk. — Long. 7i mm. Ferruginous-brown, 

 thickly punctured. Prothorax armed with two thick, prismatic, 

 sUghtly twisted, almost erect horns, which are slightly diverging 

 and inclined forward, two carinse in front ; posterior process 

 curved, very slender, acute at tip, which extends beyond abdomen, 

 with a median carina. Abdomen and legs ferruginous. Tegmina 

 whitish, with a ferruginous discal stripe, and two brown streaks 

 along interior border; veins tawny; wings vitreous. Doubtless 

 this is Daunus vitta, Walk. Ilab. — Tasmania. 



C?) 0. spinicornis, Walk. — <^. Long. corp. 7 mm. Piceous. 

 Prothorax punctured, with two thick, ascending, curved, diverg- 

 ing horns, slightly inclined forward, rudely reticulated toward 

 apex, where they are armed with a spine on the outer side ; 

 furnished with a median carina; posterior process forming a spine 

 which extends to apex of tegmina. Chest whitish on each side. 

 Wings cinereous-hyaline, veins piceous. Probably acanthasjns, 

 Fairm. Hab. — Moreton Bay. 



\V) 0. 2^ondifer, Walk. — ^. Long. corp. 4 mm. Piceous. Pro- 

 thorax punctured, forming an erect, thick horn, whose summit is 

 much dilated posteriorly, and on each side, where it emits an 

 acute, horizontal spine, with tips fulvous; posterior process gibbous 

 in front, ending in a long, curved spine which has a pale yellow 

 band at its base. Tarsi and tips of tibife pale. Tegmina brown, 

 punctured at base and along costa; wings cinereous-hyaline. 



Genus (?) Centrotus, Fabr. 



(?) C. acanthucus, Fairm. — -Long. 7 mm. Brown, punctured. 

 Lateral horns of prothorax divergent, compressed, obtuse, broad; 

 posterior process thick at base, notched at scutellum, sinuous 

 beyond, curved inferiorly at apex, bisinuate below, longer than 

 abdomen. Scutellum yellow. Head yellowish, with two glisten- 

 ing black spots above eyes. Tegmina transparent, a little 

 fuliginous. Femora black, tibife yellowish. Belongs to the genus 



