Red-humped Oakworm Moth Symmerista canicosta Franclemont, 1946  Synonyms: Hodges #7952.

Description:

Tony Thomas (BugGuide, 2015): "Adults of species in the genus Symmerista are believed to be indistinguishable, except by examination of the genitalia. Fortunately, males can be recognized, without dissection, by examining the 8th sternite. This is the hard cuticle on the ventral surface of the last segment of the abdomen. The technique is briefly explained in Wagner’s Caterpillar book (p 21), combine this with brushing the scales of the last sternite (8th). S. leucitys has a deep, narrow emargination, whereas in the other 2 eastern species the emargination is shallower and wider."

There are 12 records in the project database.

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Red-humped Oakworm Moth caterpillars in Howard Co., Maryland (10/2/2013). Photo by Bonnie Ott. (MBP list)

A Red-humped Oakworm Moth caterpillar in Frederick Co., Maryland (9/8/2014). Photo by Richard Orr. (MBP list)

A Red-humped Oakworm Moth larva in Harford Co., Maryland (10/4/2015). Photo by Bob Cammarata. (MBP list)

A Red-humped Oakworm Moth caterpillar in Garrett Co., Maryland (9/6/2015). Photo by Bob Cammarata. (MBP list)

A Red-humped Oakworm Moth larva in Frederick Co., Maryland (8/19/2015). Photo by Bob Cammarata. (MBP list)

Red-humped Oakworms in Frederick Co., Maryland (9/15/2015). Photo by Bob Cammarata. (MBP list)

A Red-humped Oakworm Moth in St. Mary's Co., Maryland (9/18/2016). Verified by Roger Downer/BAMONA. Photo by Tyler Bell. (MBP list)


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