580 CRYPTOPHAGID.®. 
The family, as thus limited, includes a considerable number of insects, the exotic 
forms of which have hitherto been very little studied or collected, so that it is scarcely 
a matter for surprise that nearly the whole of the 103 species here dealt with are new. 
A few have been previously described by Reitter, and I regret that I have not been 
able to obtain his types for comparison, so that my identification of his species is 
possibly not in all cases correct. 
As regards the groups, I here treat the following as subfamilies, viz.: Telmatophiline, 
Cryptophagine, Atomariine, Biphylline *. I may remark that in this case [ adopt 
the same course as is pursued by Dr. Ganglbauer, although in our fauna it is very 
difficult to draw a satisfactory line of division between Telmatophiline and Crypto- 
phagine. On the other hand, the Biphylline appear to be truly distinct, no form 
having been brought to light that tends to connect them with any other division. 
They might be treated as a separate family with very good reason. 
Subfam. TELMATOPHILINA. 
In all the insects I place in this subfamily, the tarsi have the third joint, if not also 
the second and first, produced at the tip, so as to project under the following joint, a 
structure that cannot be well seen unless the terminal tarsal joint is bent away from 
the rest of the foot. ‘This structure must not be confounded with the lobe of the 
third joint that exists in the subfamily Biphylline, where the lobe is a delicate 
appendage, not a part of the body of the joint. 
Dr. Ganglbauer, in his classification of the Cryptophagide, attaches great importance 
to the condition of the anterior acetabula, 7. ¢. whether open or closed. I am at 
present compelled to treat this character as of subordinate importance, and I accordingly 
place in the Telmatophiline one genus, Celocryptus, having the acetabula broadly 
closed behind. 
TELMATOPHILUS. 
Telmatophilus, Heer, Faun. Helv. i. p. 417 (1841). 
This genus includes a small number of species from the Palearctic and Nearctic 
regions, in addition to the one said to occur in Mexico. 
1. Telmatophilus ferrugineus. 
Telmatophilus ferrugineus, Reitter, Deutsche ent. Zeitschr. xix. p. 227 (1875) °. 
Hab. Mexico }, 
I can give no information about this insect. 
* The name Biphyllus is now frequently replaced by Diphyllus. An emendation that makes a new name 
is, however, scarcely permissible. 
