INSECTA MADERENSIA. 371 



I captured it from off the foliage of a Til-tree in tlie grounds of the Quinta da 

 Palmeha, above Punchal. It is more particularly abundant during the early 

 autumnal months; and, like the A. lauripotens, its habits are comparatively 

 diurnal. 



283. Atlantis vespertinus, Woll. (Tab. VII. fig. 4.) 

 A. oblongo-subovatus nitidus piceus, pube subcinerea depressa parcissime variegatus, rostro brevi 

 lato longitudinaliter striguloso, protliorace convexo crebre et sat profunde punctato, elytns 

 leviter punctato-striatis, pilis longiusculis suberectis adspersis, interstitiis vix tessellatis, antennis 

 breviusculis subgracilibus fusco-ferrugineis, articulis secundo et tertio jequalibus. 

 Mas, pedibus robustis latiusculis: tibiis intermediis apice parum robuste armatis ; anticis intus 

 obscurissime crenulatis, apicem versus vix emarginatis atque ad apicem leviter mcurvis ; posticis 

 ante apicem baud constrictis (i. c. usque a basi facile dilatatis), ad apicem subito explanatis, 

 angulo interno oblique truncato (calcaneum acutum subtriangularem parvuui pone apicem minus 

 exstantem efficiente), externo leviter acuminato exstante. 

 Fam. paulo major ; pedibus gracilioribus sed baud brevioribus, simplicibus. 

 Long. Corp. lin. 3-3§. 



Habitat sub lapidibus in montibus superioribus Maderse, inde a 3000' s. m. ascendens : ab autumno 

 ad ver novum prfcdominat, quo tempore per totam regionem prsecelsam cacuminibus montis Pico 

 dos Arieros dicti subjacentem copiosissime observavi. 



A. oblong-subovate, being less acuminated anteriorly than any of the other species, more or less 

 shining and piceous, and exceedingly sparingly clothed with a decumbent subcinereous pubescence. 

 Rostrum short and broad, and not at all dilated at the apex; longitudinally strigulose; and with 

 a central channel, especially apparent between the eyes. Prothorax convex, with the sides almost 

 equally rounded, being widest about the middle ; closely, and more or less deeply punctured. 

 Elytra lightly punctate-striated ; more or less sparingly beset with longish, suberect additional 

 hairs, which have sometimes a tendency to arrange themselves in rows ; the interstices with the 

 faintest possible tendency to be longitudinally tessellated with denser patches of the subcinereous 

 pile. Antenna short, slender, and brownish-ferruginous ; the second joint of their funiculus not 

 being perceptibly longer than the first. Leffs as in the previous species. 

 Male, with the legs rather broad and robust. Tlie two anterior tibia with their apical spine obso- 

 lete, most obscurely crenulated internally, scarcely at all emarginated towards their extremity,— 

 the extremity itself slightly incurved ; the intermediate ones with the spine tolerably distinct, and 

 very slightly incurved at their extremity; the hinder ones not constricted before their extremity 

 (being gradually dilated from their base),— the extremity itself with its external surface suddenly, 

 but not very greatly, expanded out, the inner angle being obliquely truncated so as to form a heel 

 (which is slightly produced, small, and trigonate, being extremely angular at its termination) 

 behind the apex, and the outer one being produced into a prominent and acuminated process 

 (though less prominent and less acuminated than in any of the previous species) . 

 Female generally a little larger ; with the legs slenderer, but not shorter, and simple. 



One of the best-defined of all the Atlantides hitherto discovered, partaking in 

 some measure of the peculiarities of Laparocerits, though not sufiiciently so to be 



3b2 



