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Photo#1719368
Male - Magdalis barbicornis - male

Male - Magdalis barbicornis - Male
Boston, Arnold Arboretum, Suffolk County, Massachusetts, USA

Date?
Just curious if you know anything about the date, even the year? This might be a county record.

 
Hi Jenn
This one emerged from Sorbus pohuashanensis sometime between 5/5/2107 and 8/31/2017. I got another one (a female) from the same tree, but it was in the barrel sweepings when we emptied the barrel, so it could have emerged anytime between 5/5/2017 and 9/3/2019. Eventually, these data will be published once we write up the results from this massive rearing project.

As for it being a county record, it is not. Henry Fall first reported the species in North America in 1913 from a few specimens collected in 1909 on elm in Dorchester, Mass (Suffolk Co.).

 
Thank you!
Much appreciated. O'Brien and Wibmer have a record for the state but do not say which county, I figured Suffolk County was less likely than others but I guess I do not actually know who their data source was for this species.

 
You're welcome.
O'Brien & Wibmer's source was likely this:

Fall, H.C. 1913. A brief review of our species of Magdalis, with notes and descriptions of other North American Rhynchophora. Transactions of the American Entomological Society 39: 23–72.

Available here: https://www.jstor.org/stable/pdf/25076907.pdf

See page 33.

 
Thank you again!
Thank you again!

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