BY ARTHUR M. LEA. 667 



rounded, base bisinuate; constriction deep; ocular lobes produced, 

 moderately acute and almost right-angled; carinate along median 

 line. ScuteUnm distinct, rounded, transverse or longitudinal. 

 Elytra much wider than prothorax, shoulders prominent, sides 

 decreasing in width from base; suture strongly raised. Pectoral 

 canal moderately deep and wide, .terminated between the inter- 

 mediate or the four anterior cox£e. Mesosteriial receptacle 

 variable. Metasternum shorter than basal segment of abdomen; 

 episterna moderately large. Ahdoinea large, sutures distinct; 1st 

 segment about twice the length of 2nd; intercoxal process narrow 

 and rounded; 3rd and 4th large, their combined length greater 

 than that of the 2nd or 5th. Legs long; femora ridged beneath, 

 the ridge of each terminating in a feeble tooth; feebly grooved; 

 posterior passing elytra or not; tibi?e compressed, thin, in addition 

 to terminal hook with an almost obsolete subapical tooth; tarsi 

 shorter than tibi?e, 3rd joint wide, deeply bilobed, cla\y-joint 

 elongate, setose; claws stout. Elliptic (except for shoulders), 

 strongly convex, granulate, winged. 



One of the most remarkable genera of the Australian Crypto- 

 rhyncJiides, and rivalling many of the Brentliidm in its sexual 

 variations. Its most extraordinary feature is the mesosternal 

 receptacle : in Schonlierri it is open, in tectus it is of the usual 

 cavernous form, in dromedarius it is very slightly, and in carinatus 

 moderately cavernous. The apex of the rostrum in the majority 

 of the species rests in the mesosternal receptacle, but in Schiin- 

 herri it extends beyond it to the abdomen. Four species occur 

 in the tropical scrubs of Queensland and New South Wales, and 

 a fifth* is described from New^ Guinea. Nearly. every species of 

 all the genera (both Australian and foreign) allied to Protojmlus 

 has a small spot of whitish scales on each side of the elytra 

 towards the apex; in most of the genera also the antenna? are 

 more or less abnormal. Leaving out of consideration characters 

 subject to sexual variation, the Australian species may be thus 

 tabulated : — 



■'' P. alhoijuttatus, Chev., Pet. Xouv. ii. 1877, p. 189. 



