310. STAPHYLINIDA, 
Hab. Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion). 
Antenne elongate; the tenth joint as long as broad, blackish, with the basal joint 
infuscate yellow. Thorax very finely rather closely punctate; elytra more coarsely, 
very distinctly punctate. 
The species is readily distinguished from the others here described by the more 
distinct punctuation and more pallid colour of the wing-cases. 
In the male the terminal ventral plate ends in two broad lacinie, separated by an elon- 
gate fissure, the anterior portion of which is narrow; there is a lateral tooth of moderate 
length on each side, but not extending so far back as do the central lacinie ; the penul- 
timate plate has a rather deep rounded emargination, the edge of which is excessively 
obscurely asperate. The dorsal plate resembles that of 7. alticola, but the lateral teeth 
are more elongate; the front tarsi in this sex are only just perceptibly broader than they 
are in the female. In the female the last dorsal plate terminates in four rather long | 
spines; they all extend equally far back and are equidistant, the two middle ones being 
the more slender; the last ventral plate is six-spinose, the outer tooth on each side being 
rather the longer, though it does not extend so far back as the others. 
Only two specimens have been found. 
2. Tachinus inornatus. (Tab. VII. fig. 11.) 
Subdepressus, nigricans, nitidus ; prothoracis marginibus basali et lateralibus flavescentibus ; elytris rufo-obscuris, 
abdomine picescente, segmentorum marginibus pallidioribus; antennarum basi fusca, pedibus fusco- 
testaceis ; prothorace fere impunctato, subtiliter striguloso, elytris parce obsoleteque punctulatis. 
Long. 53 millim, 
Hab. GUATEMALA, San Gerénimo (Champion). 
Antenne elongate, even the tenth joint longer than broad; they are black with the 
two basal joints very obscure red. The thorax is destitute of punctuation, but it is 
rendered less shining bya dense fine strigulosity. The punctuation of the elytra is not 
only scanty, but very indistinct. 
Two females have been found; the last dorsal plate ends in four equally long spines, 
the outer of which are broad, and the inner not extremely slender; the last ventral 
plate is six-spinose, the outer spine being rather longer than the others, though it does 
not project nearly so far back. 
3. Tachinus alticola. 
Subdepressus, angustulus, nitidus, nigricans; prothoracis marginibus lateralibus flavescentibus; elytris 
lateraliter versus humeros brunescentibus, pedibus flavis, tibiis tarsisque fuscis. 
Long. 6 millim. 
Hab. GuaTEMALA, Totonicapam 8500 to 10,500 feet (Champion). 
Antenne elongate, entirely black; tenth joint as long as broad. Palpi black. 
Thorax rather closely and finely punctate, very shining. Elytra rather more coarsely 
