326 STAPHYLINIDA. 
body is more evenly punctate than in many Acylophori, that is, the punctures at the 
base of each segment are not greatly more crowded than at the hind margin. 
I have seen only four examples; the larger size, and the larger less acuminate head, 
longer antenne, and several other slight differences readily distinguish the species from 
A. mexicanus, to which it is very similar. 
5. Acylophorus mexicanus. 
Niger ; capite thoraceque nitidis, abdomine vix versicolore ; capite ovato, anterius acuminato; elytris paulo 
longioribus quam prothorax, crebrius fortiter punctatis; scutello crebre punctato; abdomine sequaliter 
dense punctato ; pedibus (preesertim anterioribus) cum palpis etiamque antennis plus minusve aurantiacis. 
‘Long. 7 millim. 
Hab. Mexico (Truqui, Flohr), Oaxaca, Las Vigas (Hége). 
Although only five exponents are before me from the above sources, they agree 
closely inter se, and are readily distinguished by the characters above given; the head 
is almost entirely without pubescence beneath, the scutellum rather closely and finely 
punctured, the sculpture of the elytra is rough and scabrous; when the hind body is 
looked down on directly from above it has a slight cinereous or opalescent reflection: 
the antenne are small. 
6. Acylophorus parviceps. 
Angustior, niger, nitidus ; capite ovato, anterius acuminato; elytris thoracis longitudine, crebre fortiter punc- 
tatis; scutello sat crebre punctato ; abdomine crebre punctato, apice angusto ; pedibus (presertim anteri- 
oribus) cum palpis etiamque antennis articulo basali, basi apiceque, testaceis. 
Long. 7 millim. 
Hab. GUATEMALA, near the city (Champion). 
Although extremely similar to A. mexicanus, yet I am disposed, in a genus where the 
species are so very closely allied as is the case in Acylophorus, to consider that these 
Guatemalan individuals represent a distinct species. ‘They are slightly smaller, with 
the elytra a little shorter, and with the hind body very slender behind, and the punctu- 
ation is a little less dense; a more or less evident rufescent tint exists on the hind parts 
of the two terminal segments, but this is scarcely visible except when the individuals 
are moistened. 
The six individuals found agree almost ad punctwm one with the other. 
7. Acylophorus chontalenus. 
Piceus, nitidus ; palpis flavis, pedibus rufis, abdomine purpureo-versicolore ; capite anguste ovato; elytris fere 
brevioribus quam prothorax, ‘cumque scutello crebrius minus fortiter punctatis ; abdomine crebre punctato, 
crebriusque setuloso, segmentis sexto septimoque ex parte rufescentibus. 
Long. 73 millim. 
Hab. Nicaracua, Chontales (Janson). 
Antenne slender, piceous, the basal joint more dilute at its base, and the apical one 
a little paler; parts of the mouth clear yellow. Thorax but little broader than long, 
