Thursday, August 18, 2011

Phenology: Grape Leaf Moths

This is a group of small moths, wingspreads hardly more than an inch across. Their English names, Grape Leaf Roller, Grape Leaf Folder, and Grape Leaf Tier, reflect what the caterpillars do to the leaves of grapevines (and sometimes redbud trees) to make caterpillar houses. They're not really a threat to local grapes or redbuds, but could easily become a threat, like the Corn Earworm, if extensive monocropping took place.

They are a nuisance around the house. Even in this year of low moth activity, if only one moth gets into the house, flies around lights, mindlessly flutters around the back of your neck, and drowns itself in your water glass, it will be a Grape Leaf Roller. If they have any idea of how to extend their life expectancies, they don't care about it...which may be why one species is called Desmia funeralis. (Black wings and bodies with white spots might have looked "funereal," but the creatures' behavior is suicidal.)

http://dailyparasite.blogspot.com/2010/05/may-14-desmia-funeralis.html

One of them tried to get into bed with me last night. Actually I think it was blown off course by the draft as I lifted the sheet.

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