Coarse Wood Chewers and Comminuters
The coarse wood chewers and comminutors judged to be sensitive are those species that feed in coarse woody debris in an advanced state of decay. The primitive bristletail Tricholepidion gertschi not only depends on fallen Douglas-fir trees in an advanced state of decay, but is also a myrmecophile that depends on the presence of certain carpenter ants (Camponotus spp.) (Atkinson, 1994). Trinemura sp. is a coarse wood chewer found at only a single site in California (Atkinson, 1994). The wingless wood roach, Cryptocercus punctulatus, is found under the bark of soggy fir logs and has a complement of intestinal flagellate protozoans that assist with digestion of decaying wood (McKittrick, 1964). Both bristletails, and probably the roach, depend on forest management practices that leave sufficient fallen trees in a suitable stage of decay, and do not change the thermal or moisture conditions of the forest understory (Atkinson, 1994; Briggs, 1971).
Order Acari
Epilohmannia undescribed species
Order Thysanura (bristletails)
Family Lepidotrichidae
Tricholepidion gertschi Wygodzinsky
Family Nicoletiidae
Trinemura sp.
Order Blattodea (roaches)
Family Cryptocercidae (wingless roaches)
Cryptocercus punctulatus Scudder
Order Isoptera (termites)
Family Hodotermitidae (rotten wood termites)
Zootermopsis angusticollis (Hagen)
Order Coleoptera (beetles)
Family Cisidae (minute tree-fungus beetles)
Cis maritimus (Hatch)
Family Lucanidae
Platycerus oregonensis Westwood
Family Cerambycidae (long-horned beetles)
Dicentrus bluthneri LeConte
Leptalis macilenta (Mannerheim)
Ulochaetes leoninus LeConte
Xestoleptura crassipes (LeConte)
Family Platypodidae (pinhole borers)
Platypus wilsoni Swaine
Family Scolytidae (engraver beetles)
Phloeosinus sequoiae Hopkins
Scolytus oregoni Blackman
Family Zopheridae
Phellopsis porcata LeConte
Order Diptera (flies)
Suborder Cyclorrhapha
Family Drosophilidae (pomace flies)
Drosophila montana Stone, Griffen, and Patterson
Order Hymenoptera (wasps, bees, ants)
Family Siricidae (horntails)
Xeris morrisoni (Cresson)
Family Formicidae (ants)
Camponotus modoc Wheeler