Casey — A Revision of the American Paederini. 119 
shake the positiveness of Mr. Jiilich that he himself had 
captured it and was confident of the locality. In a similar 
case a specimen of gnoma was sent to me many years ago by 
a correspondent, who stated that he had collected it at Keo- 
kuk, in Iowa. Having no reason to doubt the accuracy of 
either of these assertions, we must conclude that the species 
mentioned, as well as many other California beetles, are an- 
nually transported across the continent in earth about the 
roots of plants, in straw, among packed fruit or in other 
ways, but fail to establish themselves in the east because of 
the cold winters. Ustulata differs from swbseriata in its 
more slender form and shorter elytra, with the punctures 
more evenly serial; as the elytra of the male are shorter than 
those of the female, upon which sex wstulata is founded, the 
abbreviation of the elytra in the male must be still more notable 
when compared with the male of subseriata. Puncticeps Lec. 
belongs to a very different genus from puncticeps Sharp, and 
the change of name of the former to Jlecontei by Duvivier 
(Cat., 1883), is not necessary. 
Lobrathium Rey. 
This genus and the two preceding form a rather natural 
group, having the basal angles of the head and the anterior 
angles of the prothorax very broadly rounded or obliterated. 
In the present genus the gular sutures differ more than is 
usually the case from species to species, but, although some- 
times almost straight and approaching each other gradually 
posteriorly, they always diverge before attaining the base 
and are usually most approximate just behind the middle. 
The species are smaller, more depressed and with longer 
antennae than in the preceding genus, with the punctures less 
coarse as a rule, those of the pronotum being generally 
rather dense, in such manner that the smooth median line 
seems to be somewhat elevated or more convex than the rest 
of the surface. Lobrathium is more boreal than any of our 
other genera having an epipleural fold and is doubtless well 
represented in the great Canadian northwest, as well as in 
