INSECTA MADERENSIA. 145 



middle, and witli the sides almost equally rounded before and behind. Elytra concolorous, 

 rough, quadrate, rather suddenly shortened behind, very densely crowded with granules, bristles 

 and scales, — the first of which preponderate, but are apparently not disposed in rows ; the inter- 

 stice of each elytron nearest to the suture raised, and scarcely at all interrupted, though more 

 especially apparent (in the form of an elongated prominent ridge) behind the middle, — and 

 the remaining ones hardly perceptibly elevated except towards the apex, where a very prominent 

 isolated projection (nearer to the outer margin than to the suture) is the principal fragment of 

 them which is evident, although a few, exceedingly obscure ones about the disk are just indicated. 

 Antenrue and legs a little darker than those of the last insect. 



Au exceedingly distinct and large species, and one which may be readily known 

 from the remainder of the genus here described by its wide, quadi'ate form, by its 

 greatly dilated and anteriorly-roimded prothorax, by its dark rugose sm^face, and 

 by the very prominent outer, and costate inner protuberances of its elytra, — which 

 last are extremely roughly granulated, and with no indications of punctures inter- 

 mixed. It is hitherto unique, the specimens from which the above description 

 has been compiled having been captm-ed by myself at the E,ibeu-o Erio, — where I 

 have since frequently searched for it, but in vain. 



Genus 49. COSSYPHODES. (Tab. III. fig. 3.) 



Westwood, Trans. Ent. Soc. of Loud. (New Series) i. 168 (1851). 



Corpus parvum, valde depressum, subparallelo-oblongum, ad latera complanatum, Cosstjphi formam 

 simulans, sed ab eo aflSnitate longe distans : capite magno semicirculari, fere piano, margine 

 laterali paulo elevato atque ad basin impressione parva obliquo-longitudinali utrinque instructo ; 

 oculis obsoletis, aut saltern baud detectis (an in fossulis duabus lougitudiualibus reconditis ?) ; 

 subtus (III. 3 a), jugulo utrinque porrecto, fossulas duas pro receptione antennarum formante : 

 prothorace et elytris in dorso longitudinaliter carinatis et utrinque carinis gracilibus (aut potius 

 striis elevatis) notatis ; illo transverso-quadrato : smtello baud observando : alis obsoletis : ab- 

 domine (III. 3 b) ex segmentis ventralibus quinque (paulatim longitudine decrescentibus) com- 

 posite. Antenna (III. 3 c) brevissimte distantes geniculatae, sub margine capitis insertee et inter 

 otium sub lateribus reponendse, articulo primo maximo crasso elongato superne recondito, secundo 

 parvo breviter ovato, tertio ad nonuui brevissimis transversis latitudine leviter crescentibus, 

 decimo et undecimo magnis arete aj)plicatis, capitulum magnum abruptum ovalem biarticulatum 

 efficicutibus. Labruni (III. 3 d) sub clypeo reconditum, transverso-quadratum, angulis anticis 

 rotundatis ciliatis. Mandibula (III. 3 e, 3/) breves validre cornea?, apice bidentatfe, intus medio 

 sinuatfe. Maxilla (III. 3^) bilobse, processu exteruo porrecto (basin palporum dcfendente) 

 munitfe : lobo externa brevi, apice truncate pubescenti : interno huic vix breviore, valde ciliato. 

 Pa/pi maxillares articulis penultimo et antejienultimo brevibus latis, ultimo multo longiore 

 subovali-subacuminato : labiates (III. 3 h) articulis primo et secundo minutis subaequalibus, 

 ultimo longiore apice subacuminato. Mentuin amplissimum subquadratum, lateribus in medio 

 eraarginato-incisis. Ligula brevis angustior, angulis anticis ciliatis. Pedes (III. 3 A, 3 /, 3 in) 

 valde cursorii brevissimi compressi, antici paulo longiores : tibiis gracilibus, ad femora inter 

 otium applicandis : tarsis anticis (III. 3 k) 5-, posterioribus (III. 3 /, 3 »i) 4-articulatis ; articulis 

 in omnibus (ultimo acuminato excepto) brevibus, magnitudine vix sensim decrescentibus. 



U 



