140 PARNIDA. 
This insect is closely allied to E. sulcicollis; but the channel on the middle of the 
thorax, instead of being quite parallel-sided, becomes rather broader from the base to 
the middle, and is limited on each side by a fine raised line; besides this EF. curtulus — 
is of shorter form and has the basal plica on the wing-case more elongate. Only a 
single specimen has been found. 
12. Elmis formosus. 
Ovalis, convexus, niger, subnitidus, antennis rufis, pedibus piceo-rufis; prothorace elongato, antrorsum 
angustato, versus latus utrinque linea arguta, elevata, medio sulco perfecto ad basin latiore; elytris 
impunctatis, utrinque versus latus lineis duabus elevatis. 
Long. #, lat. 3 lin. 
Hab. Guatemata, San Joaquin in Vera Paz (Champion). 
This species is closely allied to H. sulcicollis, but is of rather narrower form; the 
prothorax is more elongate, its lateral line is more strongly elevated at the base, and 
the remarkably perfect median channel is broader in front of the scutellum; the elytra 
are almost without any trace of punctuation, and have no basal plica between their 
inner carina and the scutellum. 
Two individuals have been sent by Mr. Champion. 
13. Elmis bufo. 
Late ovalis, convexus, subopacus, niger, antennis tarsisque rufis ; prothorace equali, ad latera granulato ; elytris 
subtiliter seriatim punctatis, versus latera lineis duabus subtiliter crenulatis. 
Long. %, lat. fere 3 lin. 
Hab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion). 
Antenne slender and rather short. Thorax broad, very convex, its lateral margin 
very fine and indistinct; the surface is dull and without punctuation ; but there are 
towards the sides numerous fine granules; there is no trace of elevated lines or of 
depressions. The scutellum is remarkably broad. ‘The elytra have rather obsolete 
series of punctures and are also finely granulate, more conspicuously at the sides and 
apex than on the disk ; they possess two raised lines of fine crenulations, the outer of 
which does not connect with the lateral margin. ‘The front coxe are excessively 
distant ; and so short and broad is the projection behind them that it can scarcely be 
called a prosternal process, and its sides do not extend forwards as raised lines ; there 
are no raised lines between the middle and hind coxe. The basal ventral segment is 
not at all impressed ; and the apical segment is of normal size. 
I have described the species from a unique and mutilated individual. The parts of 
the mouth appear to be unusually small, and I have quite failed to obtain any definite 
idea of the maxillary palpi; they have however, I think, a slender terminal joint. The 
species appears to be a very isolated one, and will probably form a genus allied to 
Limnius, Ey., and distinct from the other Central-American Elmini. 
