NOSODENDRON.—EULIMNICHUS. 673 
7. Nosodendron latifrons, sp. n. 
Late ovale, nigerrimum, nitidum, antennis piceo-testaceis ; elytris seriebus punctorum ad basin desincntibus, 
ad apicem subtilibus ; clypeo latissimo. 
Long. 4 millim., 
Hab. Panama, Bugaba (Champion). 
We have only one specimen of this species; it is very distinct, on account of the 
short broad head and of the mentum being without grooves. At first sight WV. latifrons 
is very similar to WV. politum. Head very finely, distinctly punctured. Thorax 
impunctate. Base of the elytra in the middle free from punctuation; elsewhere with 
series of remote, moderately large punctures, which become smaller towards the tip, 
where each is surrounded by an irregular large area, only indefinitely marked out by 
minute punctures, 
Subfam. LIMNICHINAL. 
A very distinct subfamily, consisting, according to the Munich Catalogue, of about 
twenty species of minute Coleoptera, that frequent very wet and muddy places. 
Since 1868 the number of described representatives has been increased to about fifty. 
The most important recent work on the subfamily is the Revision of the North- 
American forms by Casey [Ann. New York Acad. v. (1890)], who recognizes eighteen 
species. I place the genus Hrsachus in the Limnichine only because Erichson did so, 
and because the Elmine, to which it belongs, have already been treated in a previous 
volume of this work. 
EULIMNICHUS. 
Limnichus, subgen. Eulimnichus, Casey, Ann. New York Acad. v. p. 146 (1890). 
Eulimnichus is the American analogue of the European genus Pelochares, from 
which it is well distinguished by the sulcate prosternum, a character apparently 
special to the American Limnichine. It has hitherto consisted of seven North- 
American species. 
1. Kulimnichus ephistemus, sp. n. 
Breviter ovalis, convexus, nitidus, niger, glaber. 
Long. 13 millim. 
Hab. Mexico, Cordova (Sallé); Guarmmata, near the city, San Gerdnimo, San 
Joaquin (Champion) ; Nicaracua, Chinandega (Sal/é). 
The smallest and least elongate of the group of species with diminished clothing, 
and distinguished from all other forms by its polished surface, and by the absence of 
hairs and punctuation, even on the head. ‘There is a minute pubescence on the 
BIOL. CENTR.-AMER., Coleopt., Vol. II. Pt. 1, May 1902. 4 R* 
