INSECTA MADERENSIA. 141 



spiniform lobe, which does not exist in the hinder pair ; and, in the case of the 

 females, by its large, subqnadrate and robust form, and by its greatly developed 

 nodules. The females might sometimes be confounded with the T. cicatricosns, 

 did not the more diluted and piceous hue, and the anteriorly -narrower outline of 

 that insect, in conjunction with the pale, subglabrous tubercles of its somewhat 

 less deeply sculptured elytra, at once separate it from the present one. After the 

 T. Lauri and rotimdatus, it is the most abundant and widely distributed member 

 of the group. I have taken it, during the summer months, in the region of the 

 Ribeiro Frio, the Cruzinhas, at the Lombo dos Pecegueiros, and the Fanal. 



115. Tarphius cicatricosus, Woll. 



T. subovatus piceus, prothorace lateribus dilutioribus, granulis crebris obtusissimis obsito, vix canali- 

 culato, elytris submaculatis rugose (sed vix seriato-) punctatis, interstitiis alternis elevatis inter- 

 ruptis, nodos rufescentibus subglabros formantibus, tarsis in utroque sexu simplicibus. 



Long. Corp. lin. l|-2. 



Habitat in locis similibus ac prsecedens, sed illo rarior. 



T. a little smaller, more ovate, and nan-ower (especially in front) than the T. nodosus, piceous, and 

 often more or less diluted or rufescent, and nearly free from scales. Head and prothorax beset 

 with very close and obtuse granules : the latter not channeled (or very obscurely so), rather 

 shorter than in the jjreceding species and not quite so wide, and with the flattened sides often 

 of a paler or more rufescent tinge, — which imparts to them a somewhat transparent appearance. 

 Elytra more or less indistinctly spotted, rugosely seriate-punctate, — the punctures being obscurer 

 and smaller than those of the T. nodonts ; the suture and alternate interstices raised and inter- 

 rupted, forming (in the usual positions) distinct, but not veiy large, subglabrous nodules, which 

 are always paler than the rest of the surface and often of a bright rufous tinge, — especially the 

 hinder, broken fascia, which is at times large, and diffused over the entire apical portion of the 

 elytra. Antenna and leffs a little paler than those of the last species : the latte)- with the tarsi 

 simple in both sexes. 



Somewhat allied, at first sight, to the females of the T. nodosus, though easily 

 separable from them, on examination, by its more diluted or rufescent hue, by its 

 rather shorter and narrower prothorax, and by the smaller and more lighily-im- 

 pressed punctures of its elytra, — which last have the tubercles always paler than 

 the remainder of the surface, being usually (together with the hinder noduled 

 fascia) of a distinctly rufous tinge. It is one of the rarer species, and is fovmd in 

 the same localities as the last. 



116. Tarphius testudinalis, WoU. 



T. c'longato-oblongus subnitidus piceus, prothorace amplo lateribus valde complanatis, granulis 

 crebris obtusis obsito, canaliculato, elytris concoloribus insequalibus ad apicem magis acuminatis. 



