INSECTA MADERENSIA. 



493 



ovato ; laliales (XI. 9 c) e scapis ligiilre connatis surgentes, articulo primo parvo, secundo paulo 

 majore, ultimo elongate fusiformi-ovato. Mentum ampluu: subquadratum, basi leviter con- 

 strictum, antice truncatum et in medio excavatum. Ligula membranacea, antice valde pdosa 

 truncata. Pedes subgraciles : tibiis subtdissime pubescentibus, ad apicem externum subtruncatis : 

 tarsis heteromeris ; posterioribus (sed prfflsertim posticis) articulo primo longiusculo ; ultmio m 

 omnibus elongato subclavato infra (apicem versus) producto, unguiculis magnis simplicibus munito. 

 A Boros (genus Coleopterorum), et fiopj>r) figura. 



The very interesting little beetle from wMch the above structural diagnosis has 

 been drawn out is somewhat related to Boros of Herbst, though at the same time 

 with abundant distinctive features of its own. It may be readily known from 

 that genus by its comparatively diminutive bulk and apterous body, by its pilose, 

 almost opake surface and subconnate elytra, by its slenderer and filiform antennae 

 (those of Boros being terminated by a weU-deflned triarticulated club), by its 

 entire (instead of centrally-bifid) upper lip, its more dentate mandibles (which 

 have a deep fissure at then- outer base), by its subclavate palpi, the exceedingly 

 minute size of its inner maxiUary lobe, and by the more membranous and less 

 robust texture of its Ugula. It is one of the most indigenous members of our 

 fauna, occurring on nearly every island of the group. It is found principally 

 beneath stones on the exposed maritime slopes of rather low elevations, especially 

 those of a hot and southern aspect. It appears to be a good deal allied to the 

 Boros Tagenioides of Lucas {Col. cle VAlgerie, 338. pi. 30. fig. 9), although with 

 very decided characters for specific separation : generically however the Algerine 

 and Madeiran representatives are probably coincident. Dejean's unpublished 

 genus Lamus, proposed for the reception of a small insect from Sicily, wiU perhaps 

 be found to coincide with Boromorphus ; but, ha\dng had only a single spechnen 

 for examination (communicated by M. DeyroUe of Paris), I have not been able to 

 satisfy myself of this from actual dissection. 



375. Boromorphus Maderae, Woll. (Tab. XI. %. 9.) 



B. angusto-elongatus ferrugineus subopacus falvescenti-pubescens et profunde punctatus, prothorace 



antice latiusculo, capite basin versus elytrisque picescentibus, pedibus vix pallidioribus. 

 Long. Corp. lin. I3— l^- 



Habitat in locis subinfcrioribus apricis Madera; Portusque Sancti, sub lapidibus et scoriis, ab autumno 

 usque ad ver novum vulgaris. 



B. elongated, narrow, ferruginous, almost opake, slightly convex, and sparingly clothed with long 

 silken fulvescent pubescence. Head and prothorax very closely and rather coarsely punctured : 

 the former usually picescent ; with the forehead a Uttle expanded and elevated before the eyes, and 

 depressed, truucated and a little paler in front : the latter widened anteriorly, with an impunctate 

 central line, margined at the sides, and with the extreme hinder angles a little prominent. Elytra 

 much darker than the prothorax, and usually rather darker than the head, being of a reddish- or 



