204 STAPHYLINID ZA. 
transverso, crebre punctato ; elytris fusco-brunneis, crebre punctatis ; abdomine levigato, nigro, segmentis 
basalibus ad margines posteriores apiceque dilutioribus ; pedibus testaceis. 
Long. 4 millim. 
Hab. Guatemata, Chiacam, Purula, San Gerénimo (Champion). 
Antenne elongate, thickened towards the extremity, laxly articulated and conspi- 
cuously setose, the basal joint sordid yellow, the rest nearly black ; third joint slightly 
longer than second, tenth a little shorter than long; terminal joint large, quite as large 
as the two preceding together, its apex obscurely red. Head broad and short, very 
sparingly punctate. Thorax narrower than the elytra, strongly transverse, a little 
narrowed behind. Elytra longer than the thorax, rather closely punctate. Legs 
elongate and slender, entirely yellow. 
The species has a great resemblance to the European species of Homalota of the 
H. socialis, Er., group; but has the distant middle coxe and the elongate hind tarsi of 
Myrmedonia; the hind tarsus, indeed, is very long and slender, the basal joint being 
the longest and about twice as long as the second joint, and considerably longer than 
the terminal joint. 
Described from three individuals, two of which are in very bad condition; the third, 
from San Gerdnimo, has some minute points of distinction from the other two, and 
may be a distinct species. 
12. Myrmedonia levior. (Tab. V. fig. 18.) 
Nigra, nitidula, elytris pedibusque testaceis, illis ad angulos posteriores, his femoribus fuscis ; antennis apicem 
versus subincrassatis, articulis nullis transversis; prothorace nitidulo, parcius punctato; elytris vix 
perspicue punctatis, tenuius pubescentibus ; abdomine sparsim punctato. 
Long. 4 millim. 
Hab. GuaTEMaua, Quiche Mountains 7000 to 9000 feet (Champion). 
Antenne becoming very slightly narrower from the fourth joint to the termination, 
second and third joints equal, tenth about as long as broad ; eleventh elongate, rather 
longer than the two preceding together. Head narrow, shining, and almost impunctate. 
Thorax distinctly narrower than the elytra, not at all narrowed behind, indeed just 
perceptibly narrower in front than at the base, nearly as long as broad, shining, very 
sparingly punctate, with four rather larger but not very distinct punctures placed so as 
to indicate the angles of a square on the disk. Elytra pallid, infuscate at the sides 
externally, with a very indistinct sculpture formed apparently by excessively obscure 
remote granules. Hind body very sparingly punctate. 
The male has a slight tubercular elevation on the dorsal plate of the sixth segment, 
in the middle, just in front of the hind margin; the hind margin of the following plate 
is very indistinctly crenulate. 
This insect resembles extremely the European Homalota nitidula, Kraatz; and until 
