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Triepeolous concavus, f, face, Yolo Co., CA_2019-03-22-02.57.31 ZS PMax UDR

Image of Triepeolus concavus (Cresson 1878)

Description:

Triepeolus concavus: Svastra Home Invader. Triepeolus are a primarily New World group and lay their eggs mostly, but not entirely, in the nests of long-horned bees (Eucerini), mostly Melissodes. Interestingly (to me), I can't find any records of them parasitizing Eucera (in the strictly old fashioned sense) but if you google around you will see mentions on websites that they do. I feel like these websites are incorrect, so someone please correct me if I am wrong. Eucera are a spring long-horn and maybe Triepeolus just don't do spring (I certainly know of no spring records). In any case the species at hand invades the hulking long-horn group of Svastra, not Melissodes. Consequently, they are a bit larger than most Triepeolus (as if anyone cared). This bee was collected in the California Central Valley in Yolo County for research on small-scale restoration in agricultural areas. Claire Kremen's 10-year study of hedgerows shows the benefits of planting native shrubs and forbs in agricultural areas for native bees. Photo by Erick Hernandez. ~~~~~~~~~~{{{{{{0}}}}}}~~~~~~~~~~ All photographs are public domain, feel free to download and use as you wish. Photography Information: Canon Mark II 5D, Zerene Stacker, Stackshot Sled, 65mm Canon MP-E 1-5X macro lens, Twin Macro Flash in Styrofoam Cooler, F5.0, ISO 100, Shutter Speed 200 We Are Made One with What We Touch and See We are resolved into the supreme air, We are made one with what we touch and see, With our heart's blood each crimson sun is fair, With our young lives each spring impassioned tree Flames into green, the wildest beasts that range The moor our kinsmen are, all life is one, and all is change. - Oscar Wilde You can also follow us on Instagram - account = USGSBIML Want some Useful Links to the Techniques We Use? Well now here you go Citizen: Best over all technical resource for photo stacking: www.extreme-macro.co.uk/ Art Photo Book: Bees: An Up-Close Look at Pollinators Around the World: www.amazon.com/Bees-Up-Close-Pollinators-Around-World/dp/... Free Field Guide to Bee Genera of Maryland: bio2.elmira.edu/fieldbio/beesofmarylandbookversion1.pdf Basic USGSBIML set up: www.youtube.com/watch?v=S-_yvIsucOY USGSBIML Photoshopping Technique: Note that we now have added using the burn tool at 50% opacity set to shadows to clean up the halos that bleed into the black background from "hot" color sections of the picture. www.youtube.com/watch?v=Bdmx_8zqvN4 Bees of Maryland Organized by Taxa with information on each Genus www.flickr.com/photos/usgsbiml/collections PDF of Basic USGSBIML Photography Set Up: Google Hangout Demonstration of Techniques: plus.google.com/events/c5569losvskrv2nu606ltof8odo or www.youtube.com/watch?v=4c15neFttoU Excellent Technical Form on Stacking: www.photomacrography.net/ Contact information: Sam Droege sdroege@usgs.gov 301 497 5840

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USGS Bee Inventory and Monitoring Lab