454 Mr. T. V. Wollaston on Additions to Madeiran Coleoptera. 



pressum (aut potius per meso- et meta-sterna et abdotninis basin 

 leviter concavum), ubique dense scabroso-subrugulosum, sed baud 

 setosum : capite parvo, in cavo prothoracico usque ad rostri basin 

 omnino recondite ; oculis nullis ; rostro longiusculo subarcuato 

 tenui (. e. horizontaliter compresso, subtus fere concavo), lineari, 

 sed basin versus leviter rotundato-dilatato et superne ad basin 

 ipsam quasi capiti articulate, in canaliculam pectoralem valde pro- 

 fundam argutissime deter minatara (usque ad coxas pedum inter- 

 mediorum extendentem) arete applicando ; scrobe profunda sub- 

 recta ad latera rostri posita necnon ad basin ipsam ejus ducta atque 

 ibidem abrupte terminata : prothorace subovato basi truncate, 

 longe intra apicem leviter coarctato, antice paulo acuminate : scu- 

 tello baud observando : elytris subellipticis connatis : alis obsoletis. 

 AntenncB longiusculae, subgraciles, ante medium rostri insertse : 

 scapo longiusculo clavato subrecto ; funiculo 7-articulato, art 1 

 paulo longiore vix latiore, reliquis longitudine subaequalibus lati- 

 tudine vix crescentibus ; capitulo oblongo 4-annulato. Pedes 

 robusti, contractiles, antici ad basin leviter, intermedii latius et 

 postici latissime distantes : femoribus muticis : tibiis subrectis, 

 apicem versus (preesertim externum) pilosis, ad apicem in uncum 

 deflexum productis : tarsis omnino pseudotetrameris, sed ungui- 

 culis minutissimis. 



A ro|0i/ev/za, quasi torno efformatum. 



The unique specimen from which the above characters have 

 been compiled is one of the most anomalous of the Madeiran 

 Coleoptera which have been hitherto detected ; nor was it at first 

 sight at all evident to what immediate section of the Curculio- 

 nidce it should be assigned. After a careful consideration, how- 

 ever, of the various details of its structure, I am satisfied that 

 it is not very remote in affinity from Acalles (although so dif- 

 ferent in its general facies and unclothed surface), and that, when 

 placed at the end of the Cryptorhynchides (in the vicinity of 

 Tychius, which commences the next subfamily of the Erirhinides) , 

 it will not be far distant from its natural location. Indeed, in 

 the outline of its prothorax and elytra, and in its robust and 

 basally distant legs, as well as in the excessively deep and ab- 

 ruptly-defined pectoral groove for the reception of its rostrum 

 when inflexed, it has much in common with Acalles ; neverthe- 

 less, in its very small head, which is completely concealed beneath 

 the anterior portion of the pronotum (the rostrum alone being 

 perceptible when the insect is viewed from above), as well as 

 in its total want of eyes (which, indeed, would have been use- 

 less to it, as they would have been altogether immersed within 

 the prothoracic cavity), and the remarkable form of its basally- 

 rounded rostrum, which has all the appearance of being articu- 

 lated on to the head, and of being suddenly constricted (though 

 this is not the case in reality) at its junction with the latter, it 



