INSECTA MADERENSIA. 517 



Serra, and on most of the mountain ridges in the interior of the island. It has 

 been also taken by Professor Heer on the Pico Grande. 



392. Helops infernus, Woll. (Tab. XII. fig. 4.) 

 H. oblongo-ovatus niger (vel ater) subopacus coufertissime punctulatus, prothorace ad latera rotundato, 



elytris dense rugulosis subcrenato-striatis, interstitiis apicem versus vix seriatim tuberculatis, 



antennis pedibusque fuscescentibus. 

 Long. corp. liu. 4-6i. 



Habitat sub lapidibus in campis aridis Portus Sancti, tempore vernali, vulgaris. 



H. oblong-ovate (or somewhat semicylindrical), dull black (occasionally with a very obscure piceous 

 or rusty tinge), nearly opake, and most closely and rather roughly punctulated. Prothorax 

 nearly as broad before as behind, the widest part being about the middle ; and with the sides 

 slightly but uniformly rounded. Elytra most densely rugulose (having almost the appearance 

 at first sight of being closely granuled), and crenate-striated (though not very deeply so) ; the 

 interstices with the hinder tubercles small, and, on account of the roughness of the surface, 

 exceedingly indistinct. Legs and antenna more or less brownish-piceous or fuscescent. 



A species peculiar to Porto Santo, and with exceedingly well-marked characters, 

 — which (judging from many hundred specimens which have come beneath my 

 notice) would appear in every instance to remain constant ; its somewhat oblong 

 or semicylindrical form, in conjunction with its nearly opake and very closely 

 punctiu-ed surface (the elytral portion of which would almost seem, at first sight, 

 to be granulated), being at once sufficient to separate it from the rest of the 

 Madeiran Helopkla; here described*. It is extremely abundant in the low sandy 



* In its opacity and somewhat cylindrical contour, it slightly resembles a species from the Salvages : 

 nevertheless the almost impimctate surface of that insect, added to its more posteriorly-narrowed pro- 

 thorax, will readily separate it from the H. infernus. As it is certainly imdescribed, I subjoin the fol- 

 lowing diagnosis, which will serve to distuiguish it from its Madeiran and Porto Santan aUies : 



» 

 Helops Leacocianus, Woll. 



H. oblongo-ovatus ater subopacus minutissime et vix coul'ertim punctulatus, prothorace ad latera valde 

 rotundato, elytris crenato-striatis, interstitiis apicem versus seriatim tubereidatis, antennis pedibusque 

 breviuscuHs picescentibus. 



Long. Corp. liu. 5. 



Habitat in insulis " Salvages," a Dom. Leacock nuper communicatus, cujus iu honorem speciem stabiHvi. 



H. oblong-ovate, deep black, nearly opake, and most minutely, but not very densely punctidated. Pro- 

 thorax with the sides considerably rounded, beiug a good deal (and abuost equally) narrowed before 

 and behind. Elytra very obscurely rugulose, but distinctly erenate-striated (the stris having almost 

 the appearance of being punctate) ; the interstices with the hinder tubercles large and distinct. 

 Legs and antennce somewhat piceous. 



A single specimen of this very distinct and interesting Helojjs has been lately communicated to me by 

 T. S. Leacock, Esq., of Funchal, by whom it was captured on the " Great Piton" (during his late expedi- 

 tion to the Salvages), and to whom I have dedicated the species. 



