1S81.] THE SURVEY OF n. M.S. 'alert.' 81 



4. Antarctia glauca, Blanch. Voy. Pole Sud, iv. p. 39, t. 3. 

 f. 4. 



Three specimens which, from description, appear to be referable to 

 this species. Thej were taken at Sandy Point on January 8th, 187!). 



Dytiscid^e. 



5. Rhantus darwinii, Babington, Trans. Eut. Soc. iii. 1841, 

 p. 8. 



A single female example which I refer with some doubt to this 

 species. It is a trifle more parallel than the type specimen ; and the 

 thorax is rather more dull. It was taken at Isthmus Bay. 



6. Rhantus mixtus, sp. n. 



Ater ; clypeo capiteque antice piceo-Jlavis ; ihorace piceo-flavo, 

 maryiiie antico punctato, basi medio nigra ; ehjtris politis, piceo- 

 nigris, crehre seriatim piceo-jiavo guttatis ; antennis, palpis, pedi- 

 bus prostertioque piceis. Long. Oj lin. 

 <S . Very close to R. varius, Fabr. (Ent. Syst. i. p. 195), but 

 larger, darker in colour than that species usually is, and a little less 

 regularly elliptical. Head finely coriaceous, with an impressed line 

 within each eye. Thorax shining, a little wrinkled at the sides, 

 with an imperfect impressed median line ; the middle portion of the 

 anterior margin is distinctly punctured, and this part is also 

 blackish ; the base is narrowly margined with black, the black is 

 more suffused in the middle ; the posterior angles are a trifle greater 

 than a right angle. Elytra very shining, nearly black, with closely 

 placed lines of small yellowish spots as in R. varius, but not so con- 

 spicuous ; the margins are yellow ; the extreme apex (which is 

 obliquely truncate) is margined with black ; there is a line of rather 

 close distinct punctures not far from the suture; and there is a second 

 very irregular line of similar punctures extending from within the 

 shoulder to near the apex. The whole of the underside is black, 

 except the front part of the prosternum and the sternal process. 

 The apical segment of the abdomen is densely longitudinally strigose, 

 the striae reach the base of the segment in the middle but not at the 

 sides. The legs are pitchy, the posterior tarsi being darker ; the 

 intermediate femora and tibiae are closely and rather roughly punc- 

 tured, more closely and more distinctly than in R. varius. 

 Four male examples, marked "Tom Bay, April 22, 1879." 



LuCANID^. 



7. Sclerostomus femoralis, Gueriu, Rev. Zool. 1839, p. 303. 

 A single male example taken at Sandy Point. 



Melolonthid.e. 



8. Sericoides glacialis, Fabr. Syst. Ent. p. 35. 

 Sericoides reichei, Guerin, Rev. Zool. 1839, p. 301. 



An imperfect specimen found at Skyring Water. It agrees well 

 Proc. Zool. Soc— 1881, No. VI. (i 



