Ragweed Leaf Beetle Zygogramma suturalis (Fabricius, 1775)  

Description:

"Easily distinguished from Calligrapha bidenticola by the form of the tarsal claws or by the color of the epipleuron – characters rarely visible on photos. In dorsal view, C. bidenticola is slightly more elongate than Z. suturalis but otherwise very similar. Do not try to separate the two based on whether or not the elytral stripe is divided. This character varies geographically and is sometimes not even consistent for beetles found together at the same locality" (S.M. Clark, pers.comm. to V. Belov, 11.ix.2013/BugGuide).

There are 3 records in the project database.

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A Ragweed Leaf Beetle in Frederick Co., Maryland (7/1/2018). Verified by Blaine Mathisob/BugGuide. Photo by Mark Etheridge. (MBP list)

A Ragweed Leaf Beetle in Baltimore City, Maryland (7/19/2009). Determined by S.M. Clark via V. Belov/BugGuide. This individual represents a new genus for MBP. Photo by Thomas Wilson. (MBP list)


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