380 INSECTA MADERENSIA. 



erectis parce adspersis, interstitiis alternis vix tessellatis, antennarum scapo subgracili curvato, 

 articulis secundo et tertio subaqualibus. 

 Long. Corp. lin. 2V-3. 



Habitat in suinmo montc illo Portus Sancti " Pico do Castello " dicto, sub lapidibus ruinas castclli 

 exolcti circunijaccntibus, mensibus Aprili et ^laio a mcipso copiosissime collectus : species valde 

 distincta et iu hoiiorein amici II. Schaum, Beroliui, citata. 



A. ovate and convex, dark piceous, and most sparingly variegated with a rather robust, decumbent, 

 greenish, or golden-green pubescence, — reflecting, when viewed obliquely, a metallic lustre. 

 Rostrum not so thick as iu the A. excelsus, and more divergent at its apex. Prothurax neither so 

 short, nor proportionably so wide as in that insect, also much less deeply punctured, and with its 

 mdest point perhaps ju.st perceptibly less medial. Elytra more strictly /w«cte/e-striated than in 

 that species, subglobosc, and more suddenly shortened behind ; very distinctly besprinkled witii 

 erect, additional, stiffish hairs towards their posterior region ; the alternate interstices scarcely 

 at all tessellated, though in fresh and very perfect specimens sometimes tolerably distinctly so 

 behind (where the scales reflect more or less of a golden-greenish splendour). Antenna and legs 

 as in the A. excelsus; except that they are altogether a little robustcr, — especially the scape of the 

 former, which is also rather more curved and less suddenly clavated at its extremity. 



The distinctions between the present insect and the A. excelsus have been 

 ah'cady pointed out, not only in the above comparative diagnosis, but likewise in 

 the observations under that species. It will be suificient therefore to remark, that 

 in its shortened and sul)globosc outline, in its very sparingly pubescent surface, 

 and in the additional erect pile with which the entu'e posterior j)ortion of its el\"tra 

 is besprinkled, it recedes from the whole of the genus (except the A. Force, — which 

 may possibly be a local variety of it) here described ; whilst its habits are rather 

 more of a mountain character than those of the other Porto Sautan representatives 

 of the grou^). The only sjjot iu A\hich I have ever ol^served it iu any profusion is 

 at the extreme summit of the Pico do Castello, where it literally aboimds ; and 

 where, during May of 1848 and April of 1849, I captured it in vast numbers, from 

 beneath the large slabs of stone \vithin the ruins of the ancient fort. I have dedi- 

 cated the species to my friend Dr. H. Schamn of Berlin. 



291. Atlantis Fora3, JVoll. 



A. ovatus subsenescenti-piceus, pube subviridescenti-micante depress^ parcissime variegatus, pro- 

 thorace subpunctato, elytris punctato-striatis, apicem versus setis longis erectis adspci-sis, inter- 

 stitiis alternis vix tesscllatis, antennis breviusculis scapo curvato, articulis secundo et tertio sub- 

 fequalibus. 



Long. Corp. lin. vix 2^. 



Habitat in insulA quadam parvA juxta promontorium Saucti Laureutii Maderas llheo de Fora dictfi, 

 sub lapide d. 19 Mart. 1849 reportus. 



