The stygnopsid harvestman Chinquipellobunus madlae (Goodnight and Goodnight 1967) is known from numerous caves in eleven counties in Texas and is a highly adapted troglobiont (Cokendolpher 2004). Adult and juvenile specimens were extracted in methanol, and the major volatile component of their chemical defense secretion was identified as 2-methyl-5-ethylphenol; a minor component was 2, 5-dimethylphenol. Methylethyl phenols and dimethyl phenols have also been identified in other grassatorid Opiliones, but this is the first report of defensive chemistry from a member of the family Stygnopsidae and from a North American troglobiont harvestman.
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1 April 2010
The chemical defense of the Texas cave harvestman Chinquipellobunus madlae: first report on the family Stygnopsidae and on a North American troglobiont harvestman (Opilones: Gonyleptoidea)
William A. Shear,
Alexander J. Snyder,
Tappey H. Jones,
H. Martin Garraffo,
N. Rabe Andriamaharavo
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2, 5-dimethylphenol
2-methyl-5-ethylphenol
secretion