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sawfly larva - Thrinax dubitata

sawfly larva - Thrinax dubitata
Colrain, Franklin County, Massachusetts, USA
July 29, 2004
Eating sensitive fern (Onoclea sensibilis).

Moved from Thrinax.

Tenthredinidae, Selandriinae
Hemitaxonus dubitatus. This is the only sawfly known on Onoclea and is quite common on it in woods and gardens. The larva looks exactly like those I have reared. Rearing is fairly easy as they go through several generations a year. I simply put corrugated cardboard in the jars and they readly go into the holes to form a cell and pupate. Adults will emerge in a couple weeks or so.

Moved from Sawfly larvae. Thrinax albidopicta and T. dubitata are the only sawfly species known to feed on sensitive fern.


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