INSECTA MADERENSIA. 417 



Apparently a most variable insect, — out of the four examples which have 

 hitherto come beneath my notice not two being alike, either in statui-e or colom'. 

 It would seem to be excessively rare, though found both in the north and soutli 

 of the island. I fu*st discovered it in October 1847 on the foliage of a species 

 of Sallow at the Cm-ral das Homeii'as, above Punchal; and iu June of 1850 it 

 again occurred to me, in the vineyard of Senhor Louiz Acciaioly at Santa Anna. 



Fam. 36. BRUCHID^. 



(Subf. 1. ANTHEIBIDES.) 



Genus 135. XENORCHESTES, iFoll. (Tab. VIII. fig. 8.) 



Corpus parvum, ovatum, valde convexum, glaberrimum et politum : capite deflexo ; rostro brevi lato 

 complanato ; oculis oblongis integris demissis, supra marginem capitis lateralem positis : protho- 

 race amplo, postice lato eljtris arete applieato : scutello nullo : elytris postice leviter abbreviatis 

 (pygidiiim vix obtegeiitibus), necnon ad apieem ipsum singulatim obliquo-truncatis : alis obsoletis. 

 Antenna (VIII. 8 a) longiusculse (in maribus quam in foeminis paulo longiores) rectse, basi sub- 

 approximatEe et inter oculos (in fronte) insertse, articulis primo et secundo elongatis robustis 

 (illo curvato), tcrtio ad octavum gracilioribus subfequalibus, reliquis clavam elongatam laxam 

 minus abruptam triarticulatam efficientibus (nono et decimo intus productis). Labrum (VIII. 8 b) 

 antice rotundatum ciliatum. MandibulcB magn» validee, apice incurvse acutse, basi latse, margine 

 interno in dentem obtusum postmedium producto. Maxilla (VIII. 8 c) bdob?e, longiusculee : 

 lobo externa angusto, apice pubescenti : interno vix breviore latiore, intus valde ciliato. Palpi 

 filiformes, articulo ultimo elongato subfusiformi apice leviter acuminato ; maxillares (VIII. 8 c) 

 articulis pi'imo et tertio minutis subjequalibus, secundo longiore cra.ssiore, extus ampliato ; 

 labiates (VIII. 8 d) articulo secundo primo vix longiore. Mentum amplum, antice sinuatum 

 necnon in medio profunda fissum. Ligula porrecta subrotundata pilosa. Pedes (praesertim 

 antici necnon in sexu masculo) elongati, postici subsaltatorii (sed baud incrassati) : tibiis ad 

 apieem muticis : tarsis (VIII. 8 e) pseudotetrameris, articulo primo (in anticis prsecipue) elongato, 

 secundo ad apieem emarginato tertium bilobum recipiente, ultimo clavato unguiculis simplicibus 

 munito. 



A fei'o? mirabilis, et 6p-)^rjaTt)v saltator. 



Throughout all the members of the Coleoptera with which we have here to do, 

 there is no form more remarkable or interesting than Xenorchestes, — possessing as 

 it does points of coincidence with groups far removed from each other. I have 

 but little doubt however that it is correctly placed near to the Anthribi, since its 

 most essential characteristics (both structural and external) betray a nearer relation 

 to Chorar/ns than perhaps to anything else hitherto described. Still, it is impossible 

 to deny that it inherits likewise a certain atflnity vnth. some of the ChrysomeUdce, 

 especially with siieli genera as Ilnlophila and 3Iiiw]jhilosouia (hereafter to be 

 noticed), — in conjunction with which indeed it may very likely constitute a passage 

 between the present family and that division of the Thytoiiliaga. The parts of 



3h 



