480 STAPHYLINID. 
Hab. GuatemMaua, Totonicapam 8500 to 10,000 feet (Champion). 
This species is readily distinguished by the very short elytra; it is closely allied to. 
X. mexicanus, but the punctures of the head are coarser and slightly more numerous, 
and the transverse strigulosities are coarser, rendering the surface more distinctly dull ; 
the maxillary palpi are a little broader; the eyes are unusually small; the second 
and third joints of the antenne only moderately long, the former the longer; elytra 
quite obsoletely punctate. 
Only one example was obtained. 
13. Xantholinus carinatus. 
Nigricans, nitidus; antennis pedibusque piceis, illis articulis secundo et tertio brevibus subequalibus; capite: 
utrinque parce fortiter punctato; prothorace posterius angustato, seriebus dorsalibus circiter 5-punctatis ; 
elytris politis, parce vage punctatis ; prosterno subtiliter longitudinaliter carinato. 
Long. 11 millim. 
Hab. Mexico, Durasnal (Sallé). 
This species is an ally of the European XY. punctulatus, but has the carinate com- 
pression along the middle of the prosternum rather longer and more distinct; the 
surface of the prosternum is very distinctly and regularly transversely strigose, and the 
anterior angles of the thorax beneath are piceous. The frontal furrows are rather 
elongate and but little convergent; the surface of the head and thorax is very shining ; 
the five or six punctures forming the dorsal series of the latter are rather large, and in 
addition to these there are about five other punctures on each side; the punctuation of 
the wing-cases is very obsolete. 
I have seen only three examples. 
14. Xantholinus fumatus. 
Nigro-piceus, nitidus ; antennis pedibusque rufis, illis articulo secundo et tertio brevibus subequalibus ; capite 
utrinque parce fortiter punctato ; prothorace posterius angustato, seriebus dorsalibus circiter 5-punctatis ; 
elytris politis, parce punctatis ; prosterno subtiliter longitudinaliter carinato. 
Long. 9 millim. 
Hab. Mexico (Truqui), San Andres, Guanajuato (Sallé), Las Vigas (Flohr), Oaxaca 
(Hoge). 
This species is much smaller and narrower than X. carinatus, to which it is very 
closely allied, but the colour is more dilute, and the punctuation of the elytra more 
distinct, so that I am not able at present to unite the two. 
15. Xantholinus resectus. 
Nigro-piceus, nitidus; antennis pedibusque rufo-piceis; illis articulo secundo et tertio subbrevibus; capite 
utrinque parce fortiter punctato; prothorace elongato, posterius angustato, seriebus dorsalibus circiter- 
10-punctatis ; elytris nitidis, parce punctatis ; prosterno subtiliter longitudinaliter carinato. 
Long. 9 millim. 
