Mr. T. V. Wollaston on Additions to Madeiran Coleoptera. 101 



curve (though not so decidedly so as those of the X. punctulatus). 

 Elytra finely punctured, as in the X. linearis, but with a very 

 obscure tendency to be disposed, towards the lateral margins, in 

 longitudinal rows ; their apical edge somewhat translucid and 

 testaceous. Antenna and tarsi brownish-ferruginous; the basal 

 joint of the former (and sometimes, apparently, the third also), 

 as well as the femora and tibia, piceous. 



The present Xantholinus, which in some respects (as will be 

 seen) combines the characters of the X. punctulatus and linearis, 

 but which may be at once known from them by, inter alia, its 

 more remotely punctured head and the testaceous apical margin 

 of its elytra, appears to agree sufficiently well with the descrip- 

 tion of the X. Hesperius (from Spain and Portugal) as given by 

 Erichson, to justify its being referred to that insect. Never- 

 theless I should state that it does not precisely accord with the 

 diagnosis; and hence I have assigned it to the X. Hesperius 

 with a query, being unwilling to multiply species unnecessarily 

 in a somewhat obscure group. I have detected a single specimen 

 of it amongst some old insects which were taken by Mr. M.Park, 

 about two or three years ago, near Funchal ; and a second was 

 communicated to me by Senhor Moniz, during the winter of 

 1859. 



Genus Leptacinus. 



Erichson, Kaf. der Mark Brand, i. 429 (1837). 



Leptacinus linearis, Grav. 



L. niger, nitidus ; capite utrinque dense et profunde punctato, ad 

 basin recte truncato ; prothorace seriebus dorsalibus circa 9-punc- 

 tatis ; elytris dilutioribus, latera versus seriatim punctatis ; anten- 

 nis piceis ; pedibus piceo-testaceis. 



Long. corp. lin. 1|. 



Habitat Maderam ; quinque specimina ad S. Antonio da Serra nuper 

 deprehensit Dom. Bewicke. 



Staphylinus linearis, Grav., Col. Micropt. 43 (1802). 



Gyrohypnus sulcifrons (Kby.), Steph., 111. Brit. Ent. v. 260 (1833). 



Leptacinus linearis, Kraatz, Nat. der Ins. Deutsch. ii. 649 (1857). 



L. black and shining. Head and prothorax highly polished : 

 the former straightly truncated behind, deeply and distinctly 

 punctured at the sides (but not roughly so, the punctures 

 being well-defined), and with the frontal sulci deep and distinct : 

 the latter with a longitudinal row of about eight punctures on 

 either side of its disk, and with about five or six (besides some 

 scattered ones near the anterior angles) arranged somewhat in a 

 curve towards either edge. Elytra diluted in colouring (being 

 more or less piceous, and still paler towards their outer apical 

 angles), finely punctured, the punctures being disposed in rows 



