522 STAPHYLINID. 
38. Cryptobium antoniense. 
Angustulum, nigrum; antennis rufis, pedibus testaceis; capite oblongo, crebre fortiter subobsolete punctato, 
peropaco ; prothorace crebrius profunde punctato, linea mediali impunctata; elytris quam prothorax paullo 
longioribus, dense, fortiter et profunde punctatis, nitidis, margine summo apicali piceo; abdomine minus 
subtiliter punctato. 
Long. 83 millim. 
Hab. GuateMa.a, Paso Antonio 400 feet (Champion). 
Antenne rather stout; red, tenth joint evidently longer than broad, the intermediate 
joints a little clouded. Head as broad as the elytra, straight at the sides, with prominent 
eyes. Thorax cylindric, a little narrower than the head and elytra; the latter only 
about one eighth part longer than the thorax. ‘Tibie scarcely darker than the femora. 
The unique example is in a bad state of preservation, abraded and broken ; it appears 
to have the abdominal punctuation coarser though not deeper than usual; it is a male, 
and has a short transversely elliptical impression on the third ventral plate, and a 
circular fovea on the next segment; there is no lobe. 
This species and C. filariwm have the elytra more coarsely punctured and shining 
than in the species placed immediately after them. 
Banks of streams in the low country (Champion). 
39. Cryptobium filarium. 
Angustulum, nigrum ; antennis rufis, pedibus testaceis; capite oblongo, crebrius subobsolete punctato, opaco ; 
prothorace crebrius profunde punctato, linea mediali impunctata; elytris quam prothorax longioribus, 
dense fortiter et profunde punctatis, nitidis, margine summo apicali piceo; abdomine sat crebre punctato. 
Long. 9 millim. 
Hab. GuaTEMALA, Paso Antonio 400 feet (Champion). 
The unique example has no positive sexual marks, but is no doubt a female. Though 
closely allied to C. antoniense I cannot consider it to be the other sex thereof, the head 
being more narrowed behind; the general form is rather more slender, the antenne are 
a little more slender, the elytra a little longer, and the punctuation of the hind body 
apparently finer. 
40. Cryptobium errans. 
Nigrum ; antennis rufis, pedibus testaceis; capite subquadrato, opaco, dense, vix subtiliter, minus profunde 
punctato ; prothorace cylindrico, nitido, dense punctato, linea mediali impunctata ; elytris quam prothorax 
longioribus, densius vix subtiliter punctatis, subnitidis. 
Long. 103 millim. 
Hab. Panama, Caldera in Chiriqui 1200 feet (Champion). 
Antenne elongate and slender, the tenth joint being a good deal longer than broad. 
Head quite as broad as the elytra. 
This species most resembles C. puncticolle, but has considerably more slender antenne, 
more finely punctured head, and longer and rather more coarsely punctured elytra. The 
