Feeding Derbids

30mm (wingspan) | January 21, 2011 | Finca La Isla, Limon Province, Costa Rica

These planthoppers in the family Derbidae are feeding on the yellow stem.

You can clearly see the left one’s beak (rostrum) inserted in the stem. Next time I’ll have to try and get a good profile shot. They really are odd looking.

Face on

Also odd are those Velcro like hooks along the leading edge of the wing.

What purpose might these hooks server?

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