108 
Psyche 
[June 
TWO NEW CLAVICORNS FROM THE UNITED STATES. 
By Doris H. Blake, 
Bureau of Entomology, U. S. Dept, of Agriculture. 
There have already been published three papers dealing 
with the insect inhabitants of the small, round, cream-coloured 
fungus Polyporus volvatus Peck, which grows on dead and dying 
conifers. Hubbard 1 gave a list of eleven species of beetles found 
in the fungus on pine trees of the Pacific Coast Range from the 
Columbia River northward into British Columbia. Hopkins 2 
mentioned that the beetle Dendroctonus piceaperda Hopkins was 
found associated with the same fungus in the spruces of the 
northeast. Weiss and West 3 in their recent paper on fungus insects 
and their hosts mention this fungus, although they overlook the 
fact that Cryptoporus volvatus Peck and Polyporus volvatus Peck 
are identical and treat the names as representing distinct species. 
Accordingly, when the writer collected this fungus last summer 
in the Coast Range near San Francisco and- sent it to the Na- 
tional Museum, Mr. H. S. Barber was interested to find in the 
material sent a new and large species of Cryptophagus, a genus 
not yet recorded as breeding in it. The writer is grateful to him 
for preserving the beetles and their immature stages and pointing 
out to her the biological interest attached to the fungus host. 
In connection with the description of this beetle, the writer 
is also describing a related species from Florida that has long 
been recognized as distinct but never published. Beetles were 
reared in numbers by Dr. E. A. Schwarz, H. G. Hubbard, and 
H. S. Barber from the flowers of Zamia floridana A. D. C.,and 
there is consequently in the National Museum a large series of 
the adults as well as the immature stages. The species was 
labelled in the collection as a new species of Hapalips and per- 
haps distributed to other collections under that name, but it 
.appears to belong rather to Pharaxonotha . 
Uan. Edt., vol. 24, 1892, p. 250. 
2 Bull. 28, n. s., U. S. D. A. Bur. Ent., 1901, p. 23. 
3 Proc. Biol. Soc. Wash., vol. 33, 1920, p. 33. 
