PtinidcE of the Canary Islands. 201 



Palma ; but I think, nevertheless, that it has decidedly more in 

 common wilh the type of Casapus than it has with that of Piotes. 



The C. subcalvus is apparently very rare, and (so far as I have 

 observed hitherto) peculiar to the island of Hierro, — where during 

 February of 1858 it was captured sparingly, both by Mr. Gray 

 and myself, from beneath stones, in the region to the westward of 

 Valverde. 



Genus Dignomus, nov. gen. (PI. VIII. fig. 4.) 



Corpus mediocre, parallelo-oblongum, sat dense squamoso-mar- 

 moratum (sed baud pilosum), alatum : oculis maximis, sub- 

 rotundatis, valde prominentibus : proihorace postice con- 

 stricto, in disco valde 4-nodoso-gibboso : scutello magno, sub- 

 rotundato : elytris liberis, circa humeros fere rectangulatis 

 (humeris ipsissimis rotundatis) : metasterno longiusculo, pos- 

 tice (inter coxas posticas) profunde subtriangulariter iiiciso 

 et in medio canalicula basali impresso ; alls parvis : abdominis 

 segmento penultvmo vix brevi. Antennce et instrumenta cibaria 

 fere ut in genera praecedenti, sed illis paulo longioribus gra- 

 cilioribus, labro (4 a) magis ])iloso, mandibulis (4 b) ut in 

 genere Ptino, i. e. ad apicem acutis et infra (mox ante me- 

 dium) dente lato anguliformi armatis, necnon menlo (4 d) 

 paulo breviore, lobo centrali vix magis triangulari apice acu- 

 tiore. Pedes elongati, gracillirai ; antici sub-approximati, 

 intermedii vix distantiores, postici leviter distantes : femoribus 

 elongatis, gracilibus, vix clavatis : tibiis tarsisqne elongatis, 

 gracilibus ; his filiformibus, articulo basalari in anticis, longi- 

 usculo, in posterioribus longissimo, 3 sequentibus gradatim 

 leviter decrescentibus, ultimo longiusculo. 



Obs. — Genus inter Casnpum Ptinmnqne situm, — cum ilia 

 palporum labialium articulo ultimo anomalo excavate abdo- 

 minisque segmento penultimo breviusculo (nee brevissimo), 

 sed cum Aoc mandibularum metasternique structura, protho- 

 race postice coarctato, scutello absque distinctis, coxis posticis 

 baud valde distantibus, elytris liberis necnon forma generali 

 congruens : sed in oculis maximis valde prominentibus, in 

 menti lobo ad apicem acutiore, antennis pedibusque gracilli- 

 mis, necnon tarsis longissimis, articulo basalari in posterioribus 

 (baud in posticis solum) valde elongatis a genere utroque 

 discedit. 



A BiyywjjtOQ \_^tQ et yrwprjl, dubius. 



Until I had dissected the curious insect from which the above 

 characters have been compiled I had conceived it to be a normal 



