526 STAPHYLINIDA. 
48. Cryptobium apicipenne. 
Haud latum, subparallelum, nigrum, opacum; antennis picescentibus, basi rufa, pedibus elytrorumque apice 
summo pallide flavis ; capite minore, subquadrato, peropaco, obsolete punctato ; prothorace densius fortiter 
punctato, medio linea angusta levigata minus arguta; elytris quam prothorax paullo longioribus, densius 
et fortiter punctatis, subrugosis. 
Long. 73 millim. 
Hab. Mexico, Playa Vicente (Sallé), Jalapa, Oaxaca (Hége), Tlalcotalpam (Flohr, 
coll. Sharp); GuareMaa, Paso Antonio, 400 feet (Champion) ; Nicaragua, Greytown 
(Janson). 
The male has a rather large transverse setigerous impression on the third ventral 
plate, and a slightly smaller one on the next; the hind margin of this latter segment 
may be produced to form an extremely broad short lobe, or this lobe may be entirely 
absent ; the size of the setigerous impressions, too, is apparently variable. The species 
is readily recognized, and not very similar to any other known to me. I have an 
example in my collection purporting to come from the United States, but the locality 
is doubtful. 
49, Cryptobium nasutum. (Tab. XIII. fig. 16.) 
Angustum, subcylindricum, nigricans; antennis pedibusque sordide testaceis ; capite prothoraceque opacis, illo 
elongato, subrugose obsolete punctato, hoc linea mediali nitida, parce subtilissime punctato; elytris 
crebrius, fortiter et profunde punctatis, subnitidis. 
Long. 8 millim. 
Hab. Nicaragua, Chontales (Janson). 
Head elongate, swollen on each side at the base of the mandibles; eyes convex, placed 
about the middle of the sides; the surface quite dull, impunctate in front, rugosely but 
indistinctly punctate behind. Thorax slender, subcylindric, a little narrower than the 
elytra, almost impunctate, very dull with a shining space extending along the middle 
of its entire length. Hund body a little shining, rather closely punctate. 
In the male the fourth segment beneath is armed with a long spine, extending as 
far back as the hind margin of the sixth segment; the hind trochanters are very much 
prolonged, and exhibit a slender, acute, free extremity. 
Three examples have been obtained of this distinct species. C. nasutum differs from 
the rest of the section in that the line on the side of the elytron joins the margin far in 
front of the extremity. 
§ 2. Elytra without lateral raised line. 
50. Cryptobium nigriventre. (Tab. XIII. fig. 21.) 
Minus depressum, colore instabile, rufescens, plus minusve piceo-tinctum ; abdomine supra nigricante, segmentis 
duobus ultimis marginibus testaceis; antennis rufis, medio fuscescentibus; pedibus albido-flavis, coxis 
rufis; capite prothoraceque parce punctatis; elytris dense fortius et profunde punctatis, margine apicali 
vage rufescente ; stylis analibus corneis lateraliter compressis. 
Long. 10 millim. 
