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The flattening out of the hind angles of the prothorax, 

 and the clothing of the head associate this species with nigro- 

 lineata, from which it may be distinguished by its much 

 smaller size, and by the granules of the prothorax and elytra ; 

 before the type of antennalis was sent to the Britsh Museum 

 I noted that in appearance it was close to some specimens of 

 the present species,* but the second joint of its antennae was 

 described as "not at all thicker than the third joint," a 

 character at once distinguishing it from the present and the 

 two following species. They are referred to Anodontonyx on 

 account of the small club, Blackburn somewhat unwillingly 

 having recognized that as a valid distinction from Scitala. 

 The smaller specimens (mostly males) usually have the pro- 

 thorax and basal half of head darker than the elytra, some- 

 times almost black, the elytra usually have the suture and 

 sides lightly infuscated, and sometimes each elytron has in 

 addition three very vaguely infuscated discal lines (these 

 being the feebly-elevated parts) ; the sterna are usually darker 

 than the rest of the under-surface. From some directions 

 the prothorax and elytra appear to be slightly iridescent, but 

 from a few to have a conspicuous pruinose bloom; the head, 

 however, is noniridescent from all points of view. The long 

 hairs of the upper-surface each arise from a minute granule, 

 they are fairly numerous, but not dense, between the eyes 

 and on the front third of prothorax, on the elytra they 

 appear to be sparsely scattered at random, but from directly 

 in front or behind they are seen to be in rows on the feebly- 

 elevated parts : on the abdomen the hairs are shorter, but the 

 lineate arrangement is more distinct. The front tibiae have 

 a large apical tooth and a much smaller subapical one; some- 

 times a feeble third tooth is indicated towards the base, but 

 it is usually absent. Mr. Hacker obtained many specimens. 



Anodontonyx opalescens, n. sp. 



Dark piceous-brown obscurely mottled with red, but 

 brilliantly opalescent. A few long hairs between eyes and 

 across apex of prothorax, sides of prothorax and elytra 

 fringed, rest of upper-surface glabrous; under-surface and 

 legs very sparsely clothed. 



Head with fairly dense punctures of moderate size, but 

 sparse in middle. Clypeus almost truncate in front, margins 

 rather strongly upturned. Antennae nine-, club three- 

 jointed, second joint distinctly thicker than third and sub- 

 globular, club small. Prothorax about twice as wide as long, 

 sides dilated in middle but narrowed to both base and apex, 

 front angles produced and acute, hind ones rectangular, 

 median line very feeble ; punctures somewhat larger than on 



