Synonyms and other taxonomic changes
Dryobius sexnotatus Linsley 1957
=sexfasciatum Say 1824 (not Olivier 1792)
Identification
pattern distinctive:
(recently collected in e. TX; state record)
Range
e. half of the US (NY-MI-KS to GA-AL-TX)
(1)(
Skillman 1993) (
map); >80% of specimens examined by Perry
et al. (1974) were from the Ohio River Valley
Habitat
Old growth hardwood forests; mostly in large, very old deteriorating sugar maple trees that have been wounded/scarred; adults hide under bark
(1). In PA, all of the sugar maples observed were very old and at least 3 ft across. Most sites are located in stream valleys. (Perry
et al. 1974)
Season
Flies early March to early September (most records Jun 15 to Jul 15) (Perry et al. 1974)
Food
Primary host: sugar maple (
Acer saccharum)
(3) (larvae bore in living and dead trees); also basswood, beech, linden and rarely elm
(1)
Can maintain itself on other hosts for a short period, but survival seems to depend on the availability of large, very old (overmature) sugar maple trees (Perry et al. 1974)
Remarks
Uncommon/rare
(2)(3); widely scattered, populations are sparse
(1); listed as rare and threatened on several state websites.
Dury (1902) noted that D. sexnotatus was once abundant but was even then becoming rare.
Perry et al. (1974) noted a sharp decline in the collection since 1942.
Print References
Dury, C. (1902) A revised list of the Coleoptera observed near Cincinnati, Ohio, with notes on localities, bibliographical references and description of six new species. Jour. Cincinnati Soc. Nat. Hist. 20(3): 107-196.
Linsley, E.G. (1957) Some new genera and species of North American Cerambycidae. Can. Entomol., 89(6): 283-287.
Perry, R.H., R.W. Surdick and D.M. Anderson (1974) Observations on the biology, ecology, behavior, and larvae of
Dryobius sexnotatus Linsley (Coleoptera: Cerambycidae). The Coleopterists Bulletin 28(4): 169–176. (
First page)
Warriner, M.D. (2002) Rare insect fact sheet for
Dryobius sexnonatus (Six banded longhorned beetle). Arkansas Natural Heritage Commission, Little Rock. 1 pp. (
Full text)
