INSECTA MADERENSIA. 177 



perceptible beneath a high power of the microscope), and entii-ely free from pubescence. Elytra 

 more or less reddish-castaneous, or rufescent, towards their apex. Antenna and legs short and 

 testaceous : the former wnth their club a little dusky. 



The common Em*opean E. dimicUatus occurs sparingly, and at most seasons of 

 the year, throughout Madeka, below the elevation of about 2000 feet, — though 

 more particularly in damp shady spots in the immediate vicLoity of the Wneyards 

 and other cultivated grounds. I have captiu-ed it at the Cm-ral das Romeii*as, 

 and in the Eev, H. T. Lowe's garden near Eimchal, — in the last of which I have, 

 likewise, observed it amongst dead fungi on the trunks of decayed peach-trees ; 

 and also in the ueighboui'hoods of Sao Vincente and Santa Anna, towards the 

 northern coast. 



§ II. Alw obsolete: antenn<e pedesque longiores ; itl<B articulis quarto ad ocfavum alternatim brevibus et 

 longiusculis : mandibulcB max infra apicem dente minwto instructcB. 



(Subgenus ]\nCEOUM, Woll.) 

 143. Ephistemus altemans, Woll. 



E. fusco-niger pubescens subopacus et distincte punctulatus, elytris ssepius ad basin rufo-castaneis 



ad apicem concoloribus, antennarum basi ferruginea, pedibus diluto-testaceis. 

 Long. Corp. lin. |-|^. 



Habitat per partem Madera; sylvaticam, in graminosis humidiusculis, rarissime; — ad Ribeu-o Frio 

 sestate a.d. 1850 a meipso captus. 



E. larger, more ovate, and rather more acuminated posteriorly than the E. dimidiatus, also subopake, 

 both distinctly punctulated and pubescent, and vaiying from a brownish black into a light 

 chestnut hue. Head and prothorax rather more opake and more perceptibly punctm-ed than the 

 elytra, — their surface moreover appearing, beneath the microscope, to be closely and most 

 delicately granulated. Elytra with their apex concolorous, but with their base (especially about 

 the shoulders) usually bright rufo-castaneous. Antennce and legs veiy much longer than those 

 of the last species ; the former (which have their joints, from the fourth to the eighth, alternately 

 short and long) brownish-piceous, with their base ferruginous ; the latter pale diluted testaceous. 



A most elegant and truly indigenous Uj^histemus, and apparently extremely 

 scarce. Apart from the peculiarities of its structure, which have been akeady 

 pointed out, its large and comparatively elongated form, added to its distinctly 

 punctulated, pubescent, subgranulated and partially opake surface, and the ten- 

 dency of its elytra to become bright rufo-castaneous at their base (whilst the apex 

 is concolorous), wiU serve, prima facie, to separate it from every other species* 



* In size and general contoiu- the -E. altemans approaches rather nearer perhaps to my species, the 

 E. palustris {Ann. of Nat. Hist, xviii. pi. 9. fig. 2), than to any other : nevertheless the above structural 

 characters, apart from its subopake, more pubescent, and differently coloured sm-face, will of coiu-se 

 remove it altogether from that insect. 



2 A 



