INSECTA MADERENSIA. 369 



281. Atlantis lauripotens, Woll. 



A. elongato-subovatus piceo-niger, pube viridescenti-et subaurescenti-micante depressa parce varie- 

 gatuSj prothorace punctate, elytris sat profunde punctato-striatis, pilis lougis suberectis mollibus 

 dense adspersis, interstitiis valde indistincte tessellatis, antennis breviusculis rufo-fen-ugineis, 

 artieulo tertlo seeundo paulo longiore. 

 Mas, pedibus sat robustis latlusculis : tibiis intermediis apice robuste armatis ; antieis subgracilibus 

 intus obscurissime crenulatis, apicem versus facillime et leviter emarginatis atque ad apicem 

 leviter incni-vis ; posticis ante apicem fortiter constiictis, ad apicem subito valde explanatis, angulo 

 interno oblique truncate (calcaneum obtusum gibbiformem pone apicem multo exstantem 

 eflSciente), externo acuminato valdissime exstante. 

 Fasm. paulo major; pedibus gracilioribus sed baud brevioribus, simpllcibus. 



Long. Corp. liu. 3. 



Habitat in lauretis Maderse, inter folia latitans, — ad Curral das Romeiras supra Funchal autumno 

 exeuute a.d. 1847 a meipso detectus. 



A. elongate-ovate, piceous-black (wben immature, more or less rufo-fen-uginous), and sparingly 

 variegated with a rather fine, decumbent, greenish, or golden-green pubescence. Rostrum and 

 prothorax as in the A. noctivagans, except that the latter is a little more distinctly punctured. 

 Elytra rather deeply punctate-striated; somewhat densely beset with elongated, suberect addi- 

 tional hairs, which are less robust than in any of the previous species ; the interstices having only 

 the slightest possible tendency in front to be longitudinally tessellated with denser patches of the 

 brighter pubescence, but more evidently variegated behind. Anteimm and legs as in the A. noc- 

 tivagans. 



Male, with the legs as in the last species, — but the two anterior tibiee somewhat slenderer, being 

 even still more slightly emarginated towards their inner apex, and, consequently, only just per- 

 ceptibly broader at their sub-basal region than elsewhere ; and the kinder ones much more con- 

 stricted before their extremity, and with their inner heel rather more produced, — and hunch- 

 shaped (or rounded at its apex), instead of angular and acute. 



Female rather larger ; with the legs slenderer, though not shorter, and simple. 



Allied to the A. noctivagans, though certainly distinct from it ; — ranging more- 

 over in somewhat lower altitudes, and being less nocturnal in its habits. It may 

 be recognised from that insect by its smaller size, by its rather more deeply scidp- 

 tured and less variegated surface, by the suberect pile of its elytra being both 

 denser and of a slightly softer natiu-e, by its anterior male tibise being slenderer, 

 and less perceptibly \\-idened about theu" sub-basal region, and by the hinder pair 

 being not only much more constricted before their extremity, but with the inner 

 heel rounded, and hump-shaped, instead of acute. It woukl seem to occur in less 

 elevated spots than any of the preceding species, attaining its maximum towards 

 the lower limits of the sylvan districts, — at an elevation perhaps of from 1500 to 

 about 2000 feet above the sea. I have hitherto detected it in the south of the 

 island only, where it is found on the foliage of the native laurels : and during the 



3 B 



