EULIMNICHUS.—LIMNICHODERUWS. 677 
Distinguished from all the other species of the genus, except the following, by the 
densely-packed definite punctures of the upper and under surfaces. It is clothed 
above with a rather scanty, fine, grey and flavescent setosity, giving rise to a faintly 
spotted appearance. The thoracic angles form a very definite slender spine, and 
there is even a second excessively minute spine on the front margin, where the 
prothoracic flank joins the prosternum: very careful examination is required for 
the detection of this second prominence. The prosternal groove is broad and deep, 
and the mesosternal cavity leaves only a slender margin behind it between the 
middle coxe. 
Mr. Champion secured a good series of this insect, which apparently varies but 
little. The specimens from Teapa and Cuernavaca seem to belong to the same species. 
An example sent from Motzorongo by Flohr indicates apparently a nearly allied form, 
the punctuation being less crowded; this individual is, however, in a very bad state 
of preservation. 
10. Eulimnichus admirandus, sp.n. (Tab. XX. fige. 1; la, sculpture of 
elytra. ) 
Suboblongus, opacus, omnium densissime fortiter punctatus, setositate brevissima vestitus, subvariegatus. 
Long. vix 1} millim. 
Hab. Mexico, Teapa (H. H. Smith). 
Few insects have as remarkable a punctuation as EH. admirandus, the large deep 
punctures being so closely packed that the interstices are reduced as far as is possible, 
consistent with leaving each one distinct. The surface has a somewhat file-like 
appearance, owing to the interstices being so fine. ‘The clothing consists of excessively 
short, suberect, truncate sete, and the surface is slightly variegated by them; they 
are chiefly tawny, but some groups are more pallid, so that a slight spotty effect is 
produced. 
We have only one specimen of this species; it is in perfect condition, and as the 
insect cannot be confounded with anything else, I have not taken it off the card to 
see the under surface. 4. admirandus bears some resemblance to the small narrow 
examples of £. confertus, but it is much more oblong in form, the punctures are 
more crowded, and are as well developed on the disc of the thorax as elsewhere. 
. LIMNICHODERUS. 
Limnichus, subgen. Limnichoderus, Casey, Ann. New York Acad. v. p. 146 (1890). 
I refer two species allied to the European Limnichus to this group of Captain 
Casey’s. These agree with Limnichus, but have a sulcate prosternum ; the genus, 
therefore, bears the same relation to Limnichus that Hulimunichus does to Pelobates, 
LTimnichoderus includes five North-American species. 7” 
