STAPHYLINIDZ. 785 
Although similar to G. extimus this species is easily distinguished by the more shining 
thorax, and the less densely punctured head. The dark marks on the hind body do 
not take the form of distinct spots, but of a vague blackening of the surface across the 
middle of each segment, including the apical one. In the male the hind coxa projects 
backwards, its external portion forming a broad curved process; the last ventral plate 
has a rather narrow and shallow, subangular, excision on the hind margin. Five 
examples. 
STAPHYLINUS (p. 371). 
Staphylinus biseriatus (p. 374). 
Before the locality given, insert:—Muexico, Cuernavaca, Tonila in Colima (ége). 
7 (a). Staphylinus sedatus. 
Niger, opacus, capite prothoraceque fusco-pubescentibus, abdomine utrinque griseo-flavescente maculato ; corpore 
subtus griseo-flavescente. 
Long. 28 millim. 
Hab. Mexico, Zapotlan in Colima (Hége). 
Closely allied to S. diseriatus, but readily distinguished by the fuscous pubescence of 
the head and thorax. The punctuation is fine and very dense, coarser on the head, but 
quite shallow and obsolete there. The antenne are short, fusco-ferruginous, the median 
joints black. The clypeal membrane is large and pallid. ‘The cinereous marks on the 
sides of the dorsal segments of the hind body extend to the hind margin; the anal styles 
are clothed with flavescent hairs. ‘The front feet are sordid red, the other tarsi piceous. 
The male has a small excision on the hind margin of the last ventral plate. One 
example. 
14 (a). Staphylinus lupinus. 
Elongatus, opacus, densissime subtilissime punctatus, fusco-niger; elytris, antennarum basi pedibusque rufis ; 
capite prothoraceque fulvo-tomentosis; abdomine parce aureo-pubescente, medio minus argute nigro- 
vittato.' 
Long. 27 millim. 
Hab. Mexico, Refugio in Durango (Hége). 
This insect is closely allied to the North-American S. vulpinus; but the hind body 
above is covered scantily with golden hairs, except that on the middle of each segment 
there are two almost united black spots forming thus a median black band which does 
not extend to the terminal segment. ‘The head is narrowed in front, and the base and 
hind angles of the thorax are quite rounded; the sculpture of these parts is extremely 
fine. The elytra are clothed with a fulvous pubescence, giving them a red appearance. 
The undersurface bears a rather scanty pubescence, which is between fulvous and flavescent 
in tint. ‘The middle and hind femora are fuscescent above. ‘Two female examples. 
BIOL. CENTR.-AMER., Coleopt., Vol. I. Pt. 2, October 1887. 5 HH 
