Checklist of - Entomological Society of Canada

Derodontidae
M. columbiensis Fender
M. fragilis (LeConte)
trdnsuersus (LeConte)
M. fuliginosus fuliginosus LeConte
M. fuliginosus flavicollis Fender
M. intricatus Fender
M. macnabi Fender
M. medioccidens Fender
M. niger (LeConte)
M. oregonus Fender
M. parvulus (LeConte)
M. piceolus Fall
M. piperi Fender
M. similis Fender
M. stacesmithi Fender
M. terraenovae Fender
BC
ON PQ
_PQ
ON
_PQ
oN PQ
ON
NB NS
NB
NN
NB
NS
NS
NS_-
NS
T\TIT
NT
NF
Subfamily CIIAULIOGNATHINAE
Tlibe Chauliognathini
Genus CHAULIOGNATHUS Hentz
Key to North American species: Fender (1964)
C. pensylvanicus (Deceer)
bimac u la t us (Fabricius)
MB ON PQ
Tlibe Ichthyurini
Genus TRYPHERUS LeConte
Lygerus Kiesenwetter
Key to North American species: Fender (1960)
T. frisoni Fender
ON
Superfamily Dermestoidea
FamilyDERODONTIDAE tooth-neckedfungus beetles
D.E. Bright
The family Derodontidae includes four genera
and 19 species of small beetles that occur in the
temperate parts of both the Northern and Southern
Hemispheres. They are rarely encountered in the
freld and are uncommon in collections. Three genera
and eight species are found in Canada and
Alaska. With the exception of Laricobius species,
both larvae and adults of this family feed on various
kinds of fungi or on the products of fungal
metabolism. Peltastica species appear to be
restricted to fermenting sap flows or to areas under
bark, where bacterial or fungal fermentation takes
place. Derodontus species feed on the fruiting bodies
of a wide range of higher Basidiomycetes. The
beetles prefer fresh fruiting bodies, although they
have been recorded in rotting mushrooms, "slimy
fungus," and "watery fungus." Franz (1958) has
documented the feeding habits of Lqricobius erichsonii
quite well. Adults and larvae feed on the pine
and spruce aphids of the family Adelgidae. The preferred
host of L. erichsonii is the balsam woolly
aphid; the derodontid was introduced into eastern
Canada in the 1950s for the control of this pest.
The other species of Laricobius also feed on other
species of Adelgidae.
Information on adult ahd larval morphology,
feeding behavior, life cycle, and evolution, as well as
keys and diagnoses ofall genera and species, can be
found in Lawrence and Hlavac (1979). Lawrence
(1989) recently published a catalog of the North
American species.
AK (2); BC (5); aB (3); ON (2); PQ (1); NB (2); NS
(3);NF(1) . I(1)
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