PHALACRICHUS.—CYPHONICHUS. 679 
new and aberrant genera I have called Cyphonichus and Euthryptus, but is distin- 
guished from them by the sulcate prosternum. I do not think it is the same as 
Lichminus, Casey, though I am not quite sure about this. The insects seem to be 
very rare, and I can only set forth their characters at present in this imperfect 
manner. 
1. Phalacrichus atomarius, sp. n. (Tab. XX. figg.2; 2a, punctures at base 
of thorax.) 
Ovalis, convexus, piceus, antennis pedibusque flavis, sat nitidus, pube subtili subdepressa parum dense 
vestitus, parce subtiliter punctatus. 
Long. 2 millim, 
Hab. Mexico, Frontera in Tabasco (Hége). 
This species has somewhat the appearance of a large Atomaria. It bears on the 
upper surface a rather scanty clothing of fine pallid hairs, which are directed 
backwards, but stand up quite free from the surface; the punctures are moderately 
large, but shallow. The antenne are yellow, very pale (and the mouth-parts are 
of the same colour); the first two joints are very thick, 3 to 8 slender, 9, 10, 11 
slender and elongate, but nevertheless distinctly differentiated from the preceding 
joints, each of them oval, considerably longer than broad, and so loosely connected 
that they separate with very little manipulation; they are pubescent, and bear 
numerous longer fine hairs. In addition to the diffuse punctuation, the thorax has 
a series of closely-placed shallow punctures forming a transverse row about one-third 
of the length from the base to the front, and on each side turning back to the base 
at an obtuse angle. ‘The punctuation of the under surface is excessively fine, the 
thoracic segments smooth and shining along the middle. 
CYPHONICHUS, gen. nov. 
Antenne fragiles, setose, haud clavate; articulo secundo brevi, crasso. Prosternum haud sulcatum. 
The species of this genus have lost the facies characteristic of Limnichus, and more 
resemble Cyphon. The head is only imperfectly drawn into the thorax in repose, the 
parts of the mouth being closely applied to the front of the prosternum. ‘The arrange- 
ments for packing away the retracted legs are the same as in the normal Limnichi. 
This genus occurs in Asia. (Cf. Ent. Monthly Mag. xxxviii. p. 61.) 
1. Cyphonichus panamensis, sp. n. 
Ovalis, sat convexus, rufo-brunneus, antennis, pedibus partibusque oris pallide favis, pube gracili suberecta 
vestitus, parce punctatus, elytris seriebus punctorum majorum brevissimis. 
Long. 23 millim. 
Hab. Panama, Bugaba, San Miguel in the Pearl Islands (Champion). 
