28 Mr. C. J. Galian on Longicorn Coleoptera 



tertio ad quintum ( c? ) fortiter incrassatis ; elytris apice truacatis, 

 breviter quadrispiaosis. 

 Loug. 26, lat. 8 mm. 



Hah. West Australia. Male in British Museum, male and 

 female in Mr. Fry's collection. 



Clothed with a dense ashy-grey pubescence, giving on the 

 elytra slight silky reflexions. Antennae in both sexes shorter 

 than the body, in the male a little longer than in the female, 

 and with the third to fifth joints very much thickened ; the 

 third joint, conical in form, about equal in length to the 

 scape, the fourth scarcely shorter than tlie third or fifth. Pro- 

 thorax slightly angulate at the middle of each side, with the 

 rugosity of its upper surface almost concealed by the pubes- 

 cence ; the disk with an apparently smooth space just in front 

 of the basal transverse groove. Elytra transversely truncate 

 and briefly quadrispinose at the apex. Head underneath with 

 a single transverse groove in addition to the postocular con- 

 striction. 



Pachydissus sertcus, Newm. 



Antennje in the male barely surpassing the elytra, with 

 the third and fourth joints much thickened and the third but 

 little longer than the fourth. Elytra obliquely truncate and 

 quadrispinose at the apex, prolonged more at the outer than 

 at the inner angles, and with the outer spines a little longer 

 and stronger than the inner ones. Prothorax feebly tuberch'd 

 on each side, somewhat regularly transversely wrinkled above, 

 with two longitudinal impressions uniting anteriorly and 

 limiting a subcentral smooth space. Head underneath with 

 two distinct transverse grooves, separated by a median ridge, 

 in addition to the sulcate constriction immediately behind the 

 eyes. 



Pachydissus rugosicolUs, sp. n. 



riceo-fuscus, griseo subtiliter piibesceus ; prothorace lateraliter in 

 medio obtuse angnlato, supra intricato-rugoso sine impressionibus 

 longitudinalibus ; elytris fuscis, pube grisea subsericea subtiliter 

 obtectis ; apicibus recte truncatis, quadrispinosis ; processu pro- 

 sterni postico Icviter bifido. $ . 



Long. 33, lat. 9| mm. 



Hob. Australia. 



Prothorax intricately wrinkled above, without longitudinal 

 impressions. Apices of the elytra transversely truncate, with 

 all tlie angles distinctly spined. Head underneath with a 



