156 STAPHYLINIDA. 
Antenne rather short and stout; second and third joints rather short and stout, sub- 
equal ; fifth to tenth transverse, the last of them rather strongly so. Palpi sordid yellow. 
Head rather broad and short, very dull, quite obsoletely and sparingly punctate. 
Thorax evidently but not greatly broader than long, the sides a little rounded near the 
front angles; behind the middle not rounded, but slightly narrowed towards the base, 
the hind angles quite distinct, the surface very dull, obsoletely punctate. Elytra about 
as long as the thorax, not quite so dull as the thorax, rather finely and moderately 
closely subobsoletely punctate. Hind body less dull than the anterior parts; segments 
two to four finely, five and six sparingly punctate. | 
This insect is of more depressed form than its congeners before described, and has | 
the head less prolonged in front; the middle coxe are widely separated, the metasternal 
process between them being largely developed. The legs are sometimes more dilute in 
colour, and the elytra occasionally obscurely piceous. The male has the hind margin 
of the dorsal plate of the seventh segment of the hind body armed with six stout, 
short teeth. 
6. Maseochara duplicata. 
Depressa, parcius pubescens, opaca, abdomine nitido, nigra, tibiis apicem versus picescentibus, tarsis rufis 
capite, thorace elytrisque obsolete punctatis; abdomine parce punctato; prothorace haud transverso, basin 
versus angustato, basi rotundata, margine basali in medio leviter incrassato et subtruncato. 
Long. 4-5 millim. 
Hab. Mexico, Jalapa (Hoge), Cordova (Sallé); GuaTEMALa, near the city, Las Mer- 
cedes 3000 feet, Cerro Zunil 4000 to 5000 feet (Champion); Panama, Volcan de 
Chiriqui 2000 to 3000 feet (Champion). 
This insect is extremely similar to MW. depressa; but the thorax is rather more 
elongate, and the slight peculiarity of its structure in front of the scutellum is diagnostic 
of WZ. duplicata. Although so extremely similar in appearance, it is doubtful whether 
the two insects will prove to be congeneric; for in I. duplicata the mesosternal process 
is quite slender. Inthe male of 1. duplicata the teeth existing on the hind margin of 
the seventh dorsal plate of the hind body in J. depressa are absent, the margin being 
very obscurely crenulate. 
MICROGLOSSA. 
Microglossa, Kraatz, Berl. ent. Zeit. 1862, p. 300. 
Haploglossa, Kraatz, Ins. Deutsch. i. p. 78. 
This genus at present consists of about a dozen European, one Japanese, and two 
Chilian species. 
