1918.] |53 



here aud there raised and transversely confluent, the third with a large conical 

 tubercle at the commencement of the apical declivity, the fifth and seventh 

 subcostate, the titth with a .smaller tubercle before the tip, the ridge on the 

 seventh terminating in a large subangular, laterally projecting prominence 

 which is almost in a line with the tubercle on the third. Beneath rather 

 coarsely, closely punctate ; ventral segment 5 broadly excavate in the middle. 

 Legs long ; tibiae strongly sinuate within. 



Length (excl. head) 7^, breadth 3^ mm. ( d ?) 



Hah. TiEEKA DEL FuEGO, Eater's Peak, Hermite Island (C. 



Darwiii). 



One specimen, found with the preceding. Less elongate than 

 L. 4:-tuberculatus, the rostrum rougher, stouter, and subcarinate; the 

 prothorax sulcate and trifoveate, not carinate ; the elytra shorter, 

 broader, less parallel, and less flattened on the disc, with four large, 

 transversely placed tubercles towards the apex, and two smaller tubercles 

 between them and the tip. 



Ajs^taectobius Fairm. 



Antarctohius lacunosus Fairm. 



Antarctobius lacunosus Faii*m. Ann. Soc. Ent. Fr. 1885, p. 59 ; 

 Miss. Scient. Cap Horn, vi, p. 56, t, 2, fig. 8 (1888). 



Listroderes lacunosus Enderlein, Stett. ent. Zeit. 1907. p. 39, etc. 



Hah. TiEEEA DEL FuEGO, Orange Bay, Hardy Peninsula {JFair- 

 maire), Kater's Peak, Hermite Island (0, Darwin); Chile, Patch 

 Cove, north part of Tres Montes (0. Darwin). 



Three specimens from Kater's Peak {2 6 6 and 1 $ ) and one {6) 

 from Tres Montes agree very fairly with Fairmaire's description and 

 tigm'e ; the deeply excavated metasternum and fu'st ventral segment 

 mentioned by the author are obviously 6 - characters. The tarsi are 

 densely pubescent beneath and the third joint bilobed. Antarctohius 

 Fairm. has been sunk by various authors as a synonym of Listroderes 

 Schonh. ; but if I have correctly identiiied the present species, one of the 

 three forms included in the genus by Fairmaire, the ocular lobes are 

 entirely wanting, as in the two others here added. The genus Ama- 

 thy net es OUiff (1891), from the Ecuador Andes, is rather Uke these 

 southern insects, but it has distinct ocular lobes. 



Antarctohius rugiroitris, n. sp.j 



Elongate-obovate, somewhat convex, moderately shining, piceous, the legs, 

 antennae, and under surface reddish, clothed with rather long, tine, adpressed 

 hairs ; closely, hnely, the elytra densely, rugulosely punctate. Rostrum short 



