380 STA PHYLINIDA. 
Hab. Panama, Volean de Chiriqui 4000 to 6000 feet, Bugaba 800 to 1500 feet 
(Champion). 
Var. pedibus latius pallidis. 
Hab. Costa Rica, Irazu 6000 to 7000 feet (Rogers). 
Head coarsely and very densely punctured, almost black, with black pubescence. 
Thorax. not elongate, straight at the sides, with punctuation and pubescence like the 
head, with a shining line, which is broad in front of the scutellum, along the middle, 
usually with a minute obscure ferruginous mark on each side of the middle of the front 
and hind margins. Elytra about as long as the thorax, of a very obscure fuscous-reddish 
colour, largely mottled with darker marks. Hind body, including the anal styles, black, 
with only a very slight sprinkling of grisescent pubescence at the sides. 
This insect is almost equally closely allied to S. fuscomaculatus and to S. affinis, but 
is much darker in colour than either, and has a rather longer head than S. affinis, while 
the thorax is rather shorter than in S. fuscomaculatus. The specimens from the Volcan 
Irazu are far from agreeing with those from Panama; but they also do not accord 
amongst themselves in the points of distinction, the hind femora in some being in 
larger part yellow, while in others the black mark nearly covers their surface. 
23. Staphylinus memnonius. 
Niger ; capite, thorace elytrisque fusco-subzeneis, his parum conspicue griseo-marmoratis, illis fusco-pubescentibus, 
dense fortiterque punctatis, thorace ante scutellum area parva levigata; abdomine in medio parum con- 
spicue bifariam nigro-maculato; corpore subtus parum dense griseo-pubescente; pedibus nigro-fuscis, 
tibiis superne sordide testaceis. 
Long. 22 millim. 
Hab. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion). 
Antenne black, with the base of the second joint red. Head rather large, only a 
little narrowed in front, very densely coarsely punctate; eyes a little prominent, 
occupying about one half of the length of the sides. Thorax very nearly as long as 
broad, straight at the sides, punctured and pubescent like the head, with only a 
narrow and short space in the middle at the base smooth. LElytra of a very dull 
obscure fusco-seneous tint, with faint griseous marmorations arising from a very scanty 
griseous pubescence scattered on places where is also a slight difference in the tint of 
the ground-colour, at the shoulders obscurely rufescent. Scutellum clothed with black 
tomentum. Hind body black, scarcely variegate, the black spots on the middle of 
each segment obscure. Legs with the coxe and femora nearly black, the hind 
trochanters infuscate yellow, the knees and upper part of the tibie very obscure 
yellow. 
Although extremely similar to 8S. marcidus and the S. affinis allies, this is a distinct 
species by the colour of the wing-cases and the absence of a carinula along the length 
