182 
WILLIAM G. DIETZ, M. D. 
the tooth is either curved inward at the apex and approximate to, or 
else straight and parallel with the tooth of the other claw. The 
tooth is small and inconspicuous in a few Anthonomi and Nanops, 
and especially so in Chelonychus, where the claws are also bent back- 
ward. The claws are appendiculate, that is, armed with a broad tooth 
beneath in Elleschus, Euclyptus and Orchestes, and entirely simple 
and more widely divergent in Alycodes, E])imechus, Ephelops, Xan- 
thus and Acalyptus. 
The species of the present tribe are mostly small insects, a few 
almost minute; none in our fauna, at least, exceeding 6 mm., or .25 
inch, in measurement.* The vestiture consists of pubescence or 
scales. In Anthonomoclneta the pubescence is intermixed with erect 
seta?. 
In conclusion of these introductory remarks, I desire to express 
my thanks to all who have kindly permitted the use of their material, 
especially Dr. G. H. Horn, Mr. E. A. Schwarz, Mr. H. Ulke, Mr. 
A. Balter, Mr. R. Rauterberg and Dr. John Hamilton. I am under 
great obligation to my friend. Dr. Horn, who kindly made compari- 
sons for me with type specimens in the LeConte collection at Cam- 
bridge, and who again has undertaken the task to see this paper 
through the press. 
Synopsis of Genera. 
Claws toothed. 
Middle coxje subcontiguous. Plate v, fig. 1 (1) Magilaliiiops. 
Middle coxfe .separated by the inesosternum. 
Posterior tibiae unguiculate. 
Pygidium covered ; claws armed with a long tooth. 
Beak rather short a’ld stout; eyes placed latero-inferiorly. somewhat 
approximate beneath. Plate v, fig. 2 (2) .^lacroi’lioptiis. 
Beak long and slender; eyes placed latero-superiorly. not approximate 
beneath. Plate v, fig. 3 (3) Taeliypteriis. 
Pygidium uncovered, at least in the male; claws armed with a short tooth. 
Funicle of antennae 7-joiuted; claws long, flexed backward, subchelate. 
Plate vii, fig 30« (9) Clieloiiycluis. 
Funicle of antennae 6-joiuted ; claws normal. 
Abdomen flattened ; first and second segments elongate ; pygidium 
scarcely exposed. Plate vii, fig. 26 (6) .4iitlioiiomopsi$. 
Abdomen convex ; segments less unequal ; pygidium freely exposed. 
(10) Nanops. 
Posterior tibiae mucronate. 
* The measurement is taken from the anterior thoracic margin to the apex 
of the elytra. 
