BY ARTHUR M. LEA, F.E.S. 



349 



2. Xar. SUBTUBERCULATUS, Westw. (Figs. 5, 6. 



7,8.) 



Narrower and less depressed than in i, and the bluish 

 or pruinose gloss almost or quite absent. Cuspidate mass 

 of mandibles median, the mandibles when clenched leav- 

 ing but a small apical space. Cephalic tubercles absent 

 or very feeble. Prothorax with larger and denser punc- 

 tures, the apex in middle feebly raised, so as to appear 

 like two very feeble converging tubercles. 



Females (as also those of 3) rather narrower than the 

 females of i, less polished, and with coarser punctures. 



Some of the narrower specimens of this variety at first 

 appear to belong to Launcestoni, but may be at once 

 distinguished by the elytral clothing. 



3. X. var. (Figs. 9, 10, 11.) 

 Like 2; but j-trothorax not subtuberculate at apex. 



4. X. \'ar. (Fig. 8 would do for one of the males of this 

 variety.) 



Like 3, but each shoulder with a conspicuous spot of 

 golden clothing on both sexes. 



This variety I have only seen from the Gordon River 

 (J. E. Philp) and Zeehan (Aug. Simsonj. 



All these forms differ more or less in the cusps of the 

 mandibles, which are frequently different on the different 

 sides of an individual. They all, however, have the elytra 

 more densely clothed and with longer hairs than on any 

 other species before me, and the clothing on each elytron 

 is usually in five or six rows, although the linear arrange- 

 ment is not very apparent from above. On one of the 

 National ^Museum specimens of the first variety, and one 

 of Yiv. Simson's of the second, there are two distinct 

 fovese on the prothorax. The prothorax is rather strongly 

 notched on each side of the base. The distinct teeth on 

 the front tibiae vary in number from four to nine, but are 

 usually six. The length, including mandibles, varies from 

 14 to 19 mm. The swollen portion of each mandible 

 usually has four or five cusps, and above these is a strong- 

 tubercle. 



