INSECTA MADERENSIA. 495 



male paii*, giving it a peciiliar character wliich it is not difficult, even at first 

 sight, to appreciate. Its oral organs, moreover, offer many well-marked featui-es, 

 — amongst which the strongly setose or pectinated internal lobe of its maxillae, 

 the remarkable insertion of its labial palpi, which arise from behind the ligula 

 (this last, also, being unusually robust and corneous), and, above aU, the curious 

 structm'e of the front angles of its mentum, which are composed of two parts (one 

 in the same plane as the rest of the surface, and rounded, whilst the other is more 

 acute, though lamelliform, and raised above it), should be particularly noticed. 



376. Calcar elongatus. 



C. lineari-elongatus angustus niger nitidus depressus, capite prothoraceque crebre punctulatis, hoc 

 elongato-subquadrato postice vix angustato, elytris crenato-striatis interstitiis minutissime punc- 

 tulatis, anteunis pedibusque piceis. 

 Mas, tibiis posticis intus in medio xmidentatis. 

 Variat (immaturus) colore piceo, vel etiam obscure ferrugineo. 

 Long. Corp. lin. 3i— Ij. 



Tenehrio elongatus, Herbst, Eiif. vii. 259. pi. 112. f. 2 (1797). 

 Trogosita calcar. Fab. Syst. Eleu. i. 153 (ISOl). 

 Calcar elongatus, Lucas, Col. de VAlgerie, 337 (184!9). 



Habitat in Maderse apricis maritimis, tempore hiberno et vernali, sub lapidibus non infrequens : in 

 planitia mox supra Praya Formoza sita mensibus Martio et Aprili interdum abundat, necnon ad 

 Cabo Gerajao Jauuario ineunte a.d. 1851 detexit cl. Dom. Heer. 



C. linear-elongate, narrow, black (when immatui'e, piceous or almost ferruginous), shining and 

 depressed. Head and prothorax closely punctured ; the former with the forehead very slightly 

 expanded and elevated before the eyes, depressed and emarginated in front ; the latter elongate- 

 quadrate, a little narrowed behind, and with all the angles (though especially the posterior ones) 

 rounded off. Elytra parallel, crenate-striated ; and with the interstices most minutely punctu- 

 lated. AntemuB and legs bright piceous ; the two hinder tibia of the males with a strong tooth 

 in the centre of the inner margin. 



'&'• 



Tolerably common, beneath stones, on the cliffs both to the east and west of 

 Funchal, during the winter and spring months, — and, like the last insect, more 

 especially attached to warm, sujiny situations, of a southern aspect. I have not 

 hitherto observed it in the north of the island, nor above the altitude of a thousand 

 feet. On the comparatively level ledge of ground immediately overlooking the 

 Praya Formoza I took it plentifully, in March and April of 1848 ; and Professor 

 Heer of Zurich, diu'ing his late residence in Madeka, detected it, at the beginning 

 of January, on the Cabo Gerajao or Brazen Head. It is a species of Mediterra- 

 nean latitudes, occurring both in the south of Eiu'ope and in Algeria, — though 

 only, so far as I am aware, in maritime districts. It was recorded as Madeiran, 

 by Fabricius, so early as the year 1801. 



