166 The American Naturalist. [February, 
Aphodius congregatus Mann. 
One specimen of the variety with testaceous elytra. 
Acmæops proteus Kirby. 
A specimen of this variable species is almost exactly like one from 
Ottawa, Canada. ; 
Syneta albida Lec. 
One specimen. Thesuture is narrowly dark, the thorax and head 
also quite dark. The species of Syneta vary in color and it is quite 
unnecessary to erect new species on such characters until the extent 
of this variation is more definitely known. 
Gonioctena arctica Mann. 
Four specimens of this interesting species were taken, two of them 
nearly typical, differing from Mannerheim’s description (Bulletin de 
la Societe Imp. des Naturalistes des Moscow, 1853, p. 166) only in the 
absence of- the pale thoracic borders and dorsal line. The remaining 
two show both of these markings very well, but differ from each other 
in minor particulars. , As the species is rare in American collections I 
Fig. i: 
have prepared the accompanying figure, which will give some idea of 
the color variations exhibited even by a small set. This species * 
known from Northern Alaska, the Nelson and Churchill Rivers and 
from Arctic Siberia southward to the Amur, according to Dr. Hamil- 
p. 88 
ton, from whose valuable paper (Trans. Amer. Ento. Soc., xvi, 
et seq.) much of the distribution herein quoted is derived. 
Serropalpus barbatus Schall. 
One specimen occurs “ from Maine to Alaska, Central and Western 
Europe, Western and Eastern Siberia.” (Hamilton.) 
H. F. Wickam, Iowa City, low’ 
A Peculiar Seed-Like Case-Worm from the Grand oer 
yon.—While collecting in the Grand Canyon, July 8 to 11, 1892, 
members of our party frequently found themselves covered with num- 
