514 STAPHYLINIDA. 
16. Cryptobium conforme. 
Angustulum, nitidum, rufescens ; capite nigro, oblongo ; prothorace nigricante, margine anteriore basique rufes- 
centibus, crebrius fortiter punctato, medio longitudinaliter sat late levigato; elytris nitidis, crebre fortiter 
subseriatim punctatis, margine apicali angustius dilutiore ; abdomine nigricante, segmentorum marginibus 
plus minusve rufescentibus ; pedibus testaceis. 
Long. 9 millim. | 
Hab. Mexico, Oaxaca (Hége), Juquila (Salié). 
This species is closely allied to C. wguale, though with differently coloured head and 
thorax; it is not quite so narrow in form. The head is shining, and has a deep and 
definite punctuation, very scanty in front, but dense near the rounded hind angles. 
The male has a rather long setigerous line on the third ventral plate, and a small tuft- 
bearing fovea on the fourth segment ; this segment is produced behind to form a narrow 
lobe, attenuate behind, reaching as far back as the hind margin of the next segment; 
the female is without positive sexual marks. 
17. Cryptobium bicolor. 
Lathrobium bicolor, Grav. Micr. p. 179°. 
Cryptobium bicolor, Er. Gen. et Spec. p. 563°. 
Hab. Nortu America!?, United States.—MeExico (Mus. W. W. Saunders). 
18. Cryptobium formosum. 
Angustulum, nitidum, rufum; abdomine nigro, pedibus testaceis; capite oblongo, crebre fortiter punctato, 
anterius parcissime punctato, nitido ; prothorace cylindrico, fortiter irregulariter punctato; elytris quam 
prothorax paullo longioribus, dense fortiter punctatis, nitidis. 
Long. 9 millim. 
Hab. Muxico, near the city (Flohr, coll. Sharp), Pinos Altos in Chihuahua (Buchan- 
Hepburn). 
Similar to C. bicolor, though with a different arrangement of the colours. The head 
is narrow, scarcely broader than the thorax, this latter elongate, but little narrower 
than the elytra, with coarse, not dense, punctuation, and with the medial impunctate 
space less regular than usual, owing to being infringed on by a few punctures near the 
middle. The coxe are but little darker than the femora. 
Mr. Flohr sent me two females several years ago, and a slender example of the same 
sex with rather less vivid coloration was sent by Mr. Hepburn. 
19. Cryptobium concolor. 
Angustulum, brunneo-castaneum, nitidum ; pedibus antennisque testaceis; capite oblongo, crebre sat fortiter 
punctato, nitido, anterius inter tubera opaco; prothorace crebre fortiter punctato, medio sat longitudi- 
naliter levigato ; elytris quam prothorax paullo longioribus, dense fortiter punctatis, nitidis. 
Long. 9 millim. 
Hab. Muxtco, Presidio, Ventanas 2000 feet (Forrer). 
