HYLODUOMUS. 143 



is abruptly incurved at its immediate base, straight, and at the apex 

 sensibly dilated and obliquely truncate, terminating ultimately in 

 two strong curved spurs below the insertion of the tarsus. The 

 tarsus is short and attenuated ; the first and second joints being- 

 elongated, and dilated at the apex (the second being somewhat smaller 

 than the basal joint) ; the third is broader, subcircular, and clothed 

 at its margins with a dense pubescence ; the apical joint is elongated, 

 and produced into a globular inflation, which quite conceals, from 

 above, the terminal claw. 



This genus is a connecting link between several of the preceding 

 genera and Loccoprosopus : with the former it is connected by its non- 

 incrassated palpi ; with the latter by its parallel and depressed cylin- 

 drical body. 



I have no means of ascertaining how far the extraordinary dilata- 

 tion of the antennae may be sexual, as is the case in other genera in 

 which the form of the antennce is abnormal, — as mPhysimerus, where 

 the incurved apical and broadly flattened basal joints are found only 

 in the males, and in Loccoprosopus, where the males alone possess the 

 very elongated antennae. 



1. Hylodroinus dilaticornis. (Tab. V. fig. 7.) 



H. oblongo-ovalis, subdepressus, subpubescens, fuscus ; capite brevi, 

 ad basin antenna rum prominulo ; thorace quadrato, ad basin 

 constricto, crebre punctato, subpubescenti, Jiavo ; elytris sat ro- 

 bustis, subcylindricis, punctato-striatis, subpubescentibus, nigro- 

 ftisris (ad apicem rufo-suffusis) ; antennis, art. l mo elongato, a 

 3 tw gradatim ad 6'"'" maxime incrassatis, 7''>«_11»«> abrupte et 

 tenue Jtliformibus, flavis aut fusco-rujis ; pedibus, anterioribus 

 jlavis, liosticis jiavo -ferrugineis. 



Long. corp. 1| lin., lat. | lin. 



Oblong-ovate, subdepressed, broad, subpubescent, fuscous. Head 

 not so transverse as in allied genera, vertically depressed, hardly 

 elongated ; eyes large, prominent, situated nearly at the base of the 

 head, and extending laterally as far as the angles of the thorax : 

 between the eyes (nearer to their lower surface) is a distinct eleva- 

 tion, upon which is situated the base of the antenna) ; this elevation 

 is not so angulated or abrupt as in Loxoprosopus : between the an- 

 tennae, at their base, a minute fovea extends upwards, and is con- 

 tinued in an obsolete longitudinal ridge towards the base of the head ; 

 on either side of this fovea are two depressions, nearer to the inner 

 surface of the eyes : the surface is flavous and finely punctate. 

 Thorax quadrate (slightly transverse), constricted towards the base ; 

 the anterior angles are depressed ; the surface subequate, finely and 

 thickly punctate, subpubescent, flavous. Scutellum small, triangular. 



