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Photo#1208426
Fly emerging from Tridens flavus stems - Thrypticus violaceus - male

Fly emerging from Tridens flavus stems - Thrypticus violaceus - Male
Mehan, Payne County, Oklahoma, USA
April 8, 2016
Size: ~2.1mm
Stems collected in dormant condition 12/17, including aboveground parts and infloresences (though with few seeds remaining).
Emerged sometime prior to 4/8. Could not find exuviae or other traces of immature in the plant collection.

collection 1131.1

Images of this individual: tag all
Fly emerging from Tridens flavus stems - Thrypticus violaceus - male Fly emerging from Tridens flavus stems - Thrypticus violaceus Fly emerging from Tridens flavus stems - Thrypticus violaceus - male

Another view of this specimen

Moved
Moved from Thrypticus.

Scott Brooks at the Canadian National Collection has examined this specimen, and here's what he had to say about it:

"Unfortunately there is no modern revision of the Nearctic species of Thrypticus, and available keys from the old literature are insufficient to make accurate species identifications. However, the specimen from Mehan, Oklahoma (reared from Tridens flavus) matches material in here in the CNC identified by dolichopodid expert Dan Bickel as Thrypticus violaceus Van Duzee, 1927. Dan has a lot of experience identifying species of Thrypticus from around the world, so I would consider his determination to be well-founded. Thrypticus violaceus is known from TX, NC, FL and the West Indies." T. violaceus has previously been reared from larvae boring in tiny emergent shoots of Spartina alterniflora.

 
I wonder if it would be worth it
to send this specimen



to the CNC as well? Looks like it's a male, so perhaps, if they were willing to examine it, Scott or Dan could provide a species ID (or something close to it).

 
Certainly
Any reared Thrypticus is worth sending... Dan Bickel is evidently in Australia, but with any luck it will match specimens at the CNC that he has identified.

 
Sounds good
I'll check in with Fleur (my collaborator at NYU who reared this adult) to see if she still has the specimen.

Moved
Moved from Flies.

Presumably Thrypticus
Based partly on environment this should be a male Thrypticus, the only phytophagous genus of Dolichopodidae.

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