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connection certain other exotic forms that have recently been received 
at this office, species that have been introduced in this country, or that 
are often brought living to our shores. Some of the more injurious of 
the species here considered have been kept under observation, and 
more detailed accounts of them are in course of preparation. In the 
determination of the more difficult forms I am indebted for assistance 
to Dr. David Sharp, to Dr. George H. Horn, and to Mr. E. A. Schwarz. 
Pharaxonotlta k i rscJti Reitt. — The most interesting of all the imported 
species, from an economic as well as zoologic standpoint, is the one 
mentioned at number 12 of the list just referred to, and found in corn meal 
and edible tubers from Mexico and Guatemala. This species was first 
classified with the Cryptophagida- by Eeitter, who published a descrip- 
tion in the Deutsche Entomologische Zeitschrift in 1875 (vol. xix. p. 44), 
but afterwards removed the genus to the Erotylidie. The types were 
found in Silesia, Germany, but were brought from Mexico. I know of 
no record of this insect having established itself in P^urope, but it is 
included in Keitter's recently published Catalogus Coleopterorum 
Europ*. and from what I have learned of its habits 1 am firmly of the 
belief that it is only a marter of time when it will be introduced in our 
Southern States. The species is also known from Brazil. 
Dinoderus truncatus Horn. — Of scarcely less importance than the 
preceding is the species numbered 25, found in grain and edible tubers 
of the same exhibits. As the original description of truncatus (Pr. Am. 
Phil. 3oc, vol. xvii. p. 550, 1878), was drawn up from mutilated speci- 
mens, from California, Dr. Horn has kindly compared our specimens 
with the types, and writes that they can not be separated. There 
are two divisional records of the importation of this insect in the United 
States, but there is no evidence that the species has obtained a foothold 
within our territory. 
Binoderus bifoveolatus Woll. — This insect was taken at the Columbian 
Exposition, but not having been found in the foreign exhibits it could 
not properly be included in the list of such species. It was taken on 
the lake shore, where it had been washed up by the waves. The species 
was first identified by a recently-published table for the determination of 
the Bostrychid;e of Europe and adjoining countries, given by VI. Zoufal 
in volume xin of the Wiener Entomologische Zeitung (p. 41), and this 
determination has been verified by Dr. Horn, who also confirms the 
identity of this species with Dinoderus brevis Horn, by which name we 
have always heretofore known the insect. 
The species differs from all the others that have been referred to this 
genus by its eleven-jointed antennae, also by its short form, whence the 
name brevis. At first glance it would readily be mistaken for a Xyle- 
borus. Under this latter name the species was described by Dr. Horn 
in 1878 (Pr. Am. Phil. Soc, vol. XVII, p. 550) from material received 
from New Orleans. La. In Insect Life (vol. VI, p. 274) it is mentioned 
its having been received from Kingston, Jamaica, in bamboo, and we 
have received it from other sources, also boring in bamboo. 
