Once Upon a Milkweed

[Mona Miller]

http://homepages.wmich.edu/~malcolm/SM- ... 56,1,Slide 1
Once upon a milkweed: in this complex community, one insect's poison may be another's meal
Natural History, Sept, 2002 by Anurag A. Agrawal, Stephen B. Malcolm

[Mona Miller]

http://bugguide.net/node/view/73834

http://bugguide.net/node/view/39895
"Remarks
Rhyssomatus lineaticollis (Coleoptera), are weevils that primarily feed on
the stems of A. syriaca. Adults initially feed on the apical leaves and
then, after feeding, female weevils walk to lower parts of the stem and chew
several sequential holes in the stem, creating a continuous scar. Females
lay a single egg per hole and larvae complete development inside the stem
while feeding on pith tissue. Oviposition scar length is an accurate
predictor of the number of eggs laid by the adult female. (Agrawal, 2005)"

http://homepages.wmich.edu/~malcolm/SM- ... lm2000.pdf
SPECIALIST WEEVIL, Rhyssomatus lineaticollis, DOES
NOT SPATIALLY AVOID CARDENOLIDE DEFENSES OF
COMMON MILKWEED BY OVIPOSITING INTO
PITH TISSUE