194 STUDIES IN AUSTRALIAN ENTOMOLOGY 



ferous punctures, ^ with a single puncture on each side 

 of the anus, ^ with two. 

 a. Elytra striate ; ^ with four first joints of anterior tarsi 

 spongiose below, 

 b. (J with fourth joint of anterior tarsi broadly dilatate. 

 0. Three last ventral segments impressed with lateral 

 foveae on each side, from which a transverse line 

 extends inwards towards the middle of the see- 

 ment. 

 d. Dorsal surface depressed. 



e. Marginal border of prothorax not sinuate before 

 the basal angles. 

 P. neglectus, Casteln. P. dorsalis, Macl. 



P. inornatus, Macl. P. olivaceus, Macl. 



P. semistriatus, Casteln. 



ee. Marginal border of prothorax sinuate before the 

 basal angles. 

 P. sxijhdepressus, Guer. P. elegans, Casteln. 



P. modestus, Casteln. 

 dd. Dorsal surface convex. 

 P. gibbosus, Gray. P. mastersi, Macl. 



P. hassi, Casteln. 



cc. Three last ventral segments with deep round lateral 

 fovere, and without transverse striae. 

 P. pacificus, n.sp. P. pygmaeus, Casteln. 



P. albaniensis, Casteln. 



bb. ^ with fourth joint of anterior tarsi narrow, and hardly 

 at all spongiose below. 

 P. maritimus, Casteln. P. interruptus, Macl. 



P. striatopu7ictatus, Casteln. P. Wilcoxi, Casteln. 

 P. nigricornis, Casteln. P. hunteriensis, Macl. 



P. nigellus, n.sp. P. comes, n.sp. 



[Here should come, I believe, P. clivinoides, Guer., P. dyschir- 

 ioides, Guer., and P. scauroides, Casteln., species that are unknown 

 to me except from description.] 



