384 STAPHYLINIDZ. 
30. Staphylinus centralis. 
Hand latus, niger, nigro-tomentosus; abdomine in medio bifariam nigro-maculato, inter maculas parum 
distincte griseo-maculato; capite thoraceque omnino opacis, illo minore anterius angustato, hoc densissime 
subobsolete punctato; tarsis anterioribus ferrugineis, posterioribus piceis subtus ferrugineo-pubescentibus. 
Long. 20 millim. 
Hab. Mzxtco, Oaxaca (Hége); GuatemaLa, San Gerénimo (Champion). 
This species is extremely closely allied to S. modestus, but is readily distinguished by 
the maculation of the hind body and by paler tarsi, and the punctuation of the head 
and thorax is a little coarser. It is also extremely similar to S. medialis; but that has 
the head and thorax more quadrate and closely punctate, and the eyes occupy a larger 
portion of the sides of the head. 
Hoge’s collection has supplied five examples of this species, while from Guatemala 
only one has been received. The Mexican individuals have a slight brassy tint on the 
head and thorax, which is absent from the Guatemalan exponent ; and this latter has the 
thorax rather more densely and finely punctate, and the central pallid marks on the 
hind body rather narrower and less conspicuous. 
31. Staphylinus medialis. 
Niger, nigro-pubescens et tomentosus; capite thoraceque vix subeneis; abdomine in medio parum conspicue 
bifariam nigro-maculato, inter maculas parum dense griseo-variegato, segmento ultimo basi summo fascia 
flammulata pallide griseo-pubescente. 
Long. 21 millim. 
Hab. Muxico, Oaxaca (Hoge). 
Head narrower than the thorax, subquadrate, little narrowed in front, coarsely punc- 
tate ; eyes large, occupying fully two thirds of the length of the sides. Thorax scarcely. 
as long as broad, densely and coarsely punctate, with a black pubescence, a smooth 
shining line in front of the scutellum extending one third of the length. Elytra rather 
longer than the thorax, very dull black. Hind body with the maculation only slight, 
the central pallid spot at the base of each segment being small, and the black spot of 
tomentum on each side of it obscure; the flammulate fascia at the base of the terminal 
segment consists of scanty pale pubescence placed among the black tomentum. 
I have seen only a single female example, which is very closely allied to S. mexicanus, 
but is much narrower and has the hind body less variegate. 
32. Staphylinus mexicanus. 
Sat latus, niger, nigro-pubescens et tomentosus ; capite, thorace elytrisque subaneis ; abdomine nigro griseoque 
variegato. 
Long. 23, lat. 43 millim. 
Hab. Mexico, Misantla (fohr), 
Head rather large and broad, subquadrate, coarsely and very densely punctured ; eyes 
