On Two new Parasitic Coleoptera, li,') 



TIic skull of 0. inncrotis is larpjcr atid the foramen resembles 

 that nf O. Uoj/h'i ; it has in a'lditioii two oval foramina in the 

 frontal bones whicJj are not foun<l in O. auritx. 



Dimensions of 0. aurita from Pangong Lake (Coll. A. E. 

 Waril, no. 48) : — 



Head and body 170 mm.; hind foot 31 ; ear 21. 



Skull', "greatest lenirth 40; basal length 3t; zygomatic 

 breadth 18; length of nasals 13; length of molar series 7'.5. 



Tiiere can be no doubt, tVom a coini)arison of the skins, 

 that the present species is closely allied to 0. Curzonice. It 

 is apjiarently merely rather darker and the light buff patchos 

 behind the ears are deeper in colour as a rule than in typical 

 0. Curzoniie, though this seems to be a rather variable 

 feature. 



(lood scries of both 0. Curzonice and 0. aurita will 

 probably prove the latter to be a geographical form dis- 

 tinguished by some minor but constant differences. The 

 name aurita is unfortunate, as the ears are by no means 

 consjjicuous or large. 0. macrods, except for its large ears, 

 is not unlike a pale greyish 0. lt)ijlei, a resemblance which 

 is to some extent borne out by the skulls. 



The following are the references to 0. aurita : — 



Lagomus aitritiis, Bknford, J. A. S. B. vol. xliv. p. Ill (Oct. 187.5) ; 

 id. toe. cit. .xlvi. p. 3i>i3 (1377); id. Vark. Alaiuiu. p. 74, pi. vi. ti'^ 2, 

 pi. vii.a. fig. 2(1879j. 



XIII. — On Two 7iew Parasitic Coleoptera (Fani. k5ta})hy- 

 liidda") /ro7n South America. By GiLBCKT J. AiiliOW, 

 F.E.S. 



Five species have hitherto been described of the curious 

 parasitic genus Amhhfopinus, of which four have been brought 

 from the mountain-chain of Western South America and the 

 fifth from the plains of La Plata, I am now adding two 

 more species, one from the north and the other from the 

 extreme south of the continent, and each represented by a 

 single specimen in the British Museum collection. The 

 circumstances in which they were found have not been re- 

 corded, but it may be assumed that, like the other species, 

 they are j)ara>it('s of burrowing rodents. 



Ainhlt/opinus angustus, sp. n. 



Pallido testaccus, vix nitidus, elongatus, scutcllo, clytris abdo- 

 mineque flavo-pubescontibus ; capite satfortitcr punctate, postico 



