CRYPTOBIUM. 511 
behind the eyes), rather shorter thorax, and rather shorter and more coarsely punctate 
elytra. The male has a short transverse space in which are implanted two pencils of 
sete, on the third ventral plate, and on the fourth a scarcely perceptible, pubescent 
fovea; this segment, moreover, is produced so as to form a very broad lobe projecting 
as far back as the hind margin of the next segment, and having a quite rounded 
extremity. The female I have not seen. 
I have preserved the name with which this insect was labelled in Hége’s collections ; 
he found six examples, and these are all I have seen. 
9. Cryptobium speculator. (Tab. XIII. fig. 13.) 
Gracile, elongatum, subdepressum, dilute rufo-obscurum ; capite elytrisque fuscescentibus, pedibus testaceis, 
thorace rufo, nitido; hoe subobsolete sed fortiter, minus crebre, irregulariter punctato, medio longi- 
tudinaliter late levigato ; elytris elongatis, dense sat fortiter subrugulose punctatis, fere opacis. 
Long. 13 millim. 
Hab. Mexico, Oaxaca (Hoge). 
Antenne slender and elongate, third joint nearly twice as long as the second. Head 
elongate, pilose, dull, but not entirely opaque, rather closely and definitely, moderately 
coarsely punctate, the punctuation absent from the anterior part. Thorax slender, 
almost cylindric, quite straight-sided, shining, red, with somewhat coarse, but not 
deep, rather scanty punctuation, a rather broad space along the middle impunctate. 
Elytra flat, elongate. Hind body slender, rather closely and finely punctate. Legs 
slender. 
In the male the fourth segment beneath is furnished with a broad, short, pubescent 
lobe, and in the middle with a circular setigerous impression, the preceding segment 
having just before the hind margin a very short transverse setigerous line; in the 
female these two segments each bear a setigerous pore. Our figure represents the 
female. 
10. Cryptobium palustre. 
Parum latum, subdepressum, ferrugineum, pedibus testaceis; capite oblongo, crebrius fortiter punctato, anterius 
nitido; thorace cylindrico, crebre fortiter punctato, medio longitudinaliter late levigato; elytris quam 
thorax paulo longioribus, crebrius fortiter, profundeque punctatis, subnitidis; abdomine parce punctato. 
Long. 14 millim. 
Hab. Mxxico, Guanajuato (Sallé). 
In the male of this species the fourth segment is furnished on the ventral aspect 
with a broad, moderately long, lobe, having straight sides and a very rounded 
extremity, and furnished with very long sete; at the base of this lobe there is a 
small transverse setigerous depression, and at the base of the preceding segment a 
quite small impression bearing a fine pencil of sete. The female has a linear trans- 
verse impression on the fourth segment; it is, however, quite fine, and may easily be 
overlooked. 
