528 STAPHYLINIDA. 
segmentis duobus ultimis posterius flavescentibus; prothorace densius fortiter punctato, linea angusta 
mediali impunctata ; elytris dense, fortiter et profunde punctatis. 
Long. 10 millim. 
Hab. Nicaraaua, Managua, Granada (Sallé); Panama, Volcan de Chiriqui 2000 to 
3000 feet, David (Champion).—VEnEZUELA, Caracas (Thieme). 
This is another species very closely allied to C. nigriventre, but distinguished by the 
dense, coarse, thoracic punctuation, the surface of the thorax, moreover, being shining ; 
the punctuation of the head is dense and subobsolete behind, very scanty on the middle, 
and absent in front. The male has a transverse setigerous space on the third ventral 
plate, and an elongate transverse pubescent line on the next plate; but the terminal 
segment is not emarginate. The female has no positive sexual marks. 
Six examples from our region are before me; the example from David is a small 
dark variety of the male sex. The example from Venezuela was sent me by M. Réné 
Oberthiir, named C. sulphuripes, Er., but does not accord sufficiently with the description 
of that species. 
53. Cryptobium centrale. (Tab. XIII. fig. 20.) 
Piceum ; antennis pedibusque rufis, elytris piceo-rufis ; capite haud elongato, post oculos rotundato, cumque 
thorace nitido, hoe irregulariter punctato, medio longitudinaliter late levigato ; elytris quam prothorax 
longioribus, dense, parum profunde, sat subtiliter punctatis, subopacis. 
Long. 94 millim. 
Hab. Mexico, Jalapa, Oaxaca (Hoge); Guatemana (Sallé), San Geronimo, Tocoy, 
San Isidro 1600 feet (Champion) ; Nicaragua, Chinandega (Sailé). 
Head short and broad; eyes rather large and convex, placed about the middle of 
the sides; the surface shining, coarsely punctate, a few minute punctures mixed with 
the larger ones, the anterior part depressed and dull, impunctate. Thorax very 
shining, a little narrower than the head, and distinctly narrower than the elytra, a 
broad space on the middle impunctate, and on either side of this with numerous rather 
coarse irregularly-distributed punctures. Elytra reddish, more or less infuscate, very 
closely punctate. Hind body extremely finely punctate. 
The male has the posterior trochanters prolonged, so as to form a long slender free 
spine lying parallel with the femur; the fourth ventral segment is provided with a 
large elongate nearly parallel-sided lobe, its extremity truncate or very feebly emar- 
ginate, and with the angles a little enlarged ; at the base of the lobe there is a trans- 
verse slightly curved setigerous depression, and the seventh segment is provided at the 
apex with a rather deep angular excision. The female has a curved elevation near the 
base of the fourth segment. In certain examples which I consider, though with 
hesitation, to be less developed males of the same species, the ventral lobe is narrower, 
a little shorter, and has a slightly rounded extremity. The figure represents a small 
male of unusually rufescent coloration. 
