228 



of tlie protborax — i.e., as tlioiigli one were looking tlirough the- 

 arch of a bridge. The limits of the thoracic impression are very 

 imclefiued, but it occupies something like the middle fourth 

 part of the anterior third part of the surface. The front 

 margin is very strongly bisinuate, and bears in its centre a 

 sharp erect horn, which rises above the surface of the head a 

 little more than the length of the second joint of the antennae. 

 The base of the thorax also is strongly bisinuate, and there is 

 a vague impression on the surface at the base on either side. 

 The scutellum is puncturated, but is entirely covered by a 

 bunch of long yellow hairs which project from under the 

 thorax. The el5'tra are scarcely striated, and are marked with 

 rows of moderately large shallow punctures, which become very 

 obscure near the apex. The basal third part of the pygidium 

 is moderately punctured, the apical two-thirds smooth, or 

 nearly so. The legs are rather long and slender, especially the 

 tarsi. 



In the specimen before me the basal seven joints of the 

 antenna> together are nearly two lines in length, the club is 

 nearly three lines long, one and a half wide, being very much 

 longer than the entire head. 



Port Lincoln, a single specimen. 



A second male example of Corynophyllus from the Port 

 Lincoln district differs from the preceding in being smaller 

 (7 1.) and of an uniform chestnut colour, with the pro thorax 

 proportionally narrower, its surface more strongly punctured 

 and its sides less abruptly diverging from the anterior angles. 

 As, however, it possesses the remarkable form of prothorax 

 which makes that segment appear arched upwards when viewed 

 from the side, and in other respects closely resembles- 

 C. Andersoni, I hesitate to regard it as really distinct. 



I possess also a female Dynastid taken at Port Lincoln 

 ■which I have no doubt is the female of this species. It differs 

 from the male in its uniform dark piceous colour, in the clypeal 

 suture being scarcely elevated, in the thorax being unarmed 

 in front and having no impression on its surface excej)t what 

 looks like the middle part of a feeble longitudinal channel 

 which is obsolete in front and behind, in its much shorter 

 antennae the club of w^hich is shorter than the other joints 

 together, in its prothorax much narrower in proportion to the 

 elytra, and in the elytra being decidedly at their widest near 

 the apex and longer in proportion to their width. The large 

 tuft of hairs protruding over, and covering the scutellum, is 

 absent. 



C. modesUcs, sp. no v. Convexus ; nitidus ; antennis, palpis, 

 tarsis, elytris, et abdominis segmentis ventralibus (seg- 

 mento ultimo excepto) rufis vel rufo-piceis; elytris 



