Sighting

Jenny Thynne 12 Nov 2013

Megachile Eutricharaea macularis

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Sighted 31 Oct 2013
Ellery Creek Big Hole, Larapinta Drive, Burt Plain NT 0872, Australia

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Identifications

  • Ken Walker 12 November 2013
    Megachile Eutricharaea macularis
    (species)
    Taxonomy: Animalia: Arthropoda: Insecta: Hymenoptera: Megachilidae: Megachile Eutricharaea: macularis
    Common Names: Bees, Megachilids, Megachild bees
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Notes

  • Jenny Thynne 12 November 2013
    Tagged With bee
    Jenny Thynne says

    This Megachilidae bee was feeding on the flowers of Stemodia viscosa at Ellery Creek Big Hole off Larapinta Drive, Central Australia.

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  • Ken Walker 12 November 2013
    Tagged With discussion
    Ken Walker says

    Hi - There are only 2 named species of Megachile (Eutricharaea) in central Australia: M. captionis and M. macularis. Here is a comparative image table showing the diagnostic characters of these two species: http://www.padil.gov.au/pollinators/Compare/Images?pests=138776+138784&characterTypes=17987+17988+17992+18010 My decision to call the species M. macularis was based on the clear definition of 6 white tomentum patches on the mesoscutum compared two the tomentum patches on M. captionis which are not well separated and more medial rather than laterally placed. I must admit also that I prefer to be "bold" and name a species when I have what I consider to be reasonable diagnostic characters. I never put too must value on colour characters whereas I do put value on morphological characters such as the placement of tomentum. Cheers Ken

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  • Bernhard Jacobi 12 November 2013
    Tagged With eutricharaea
    Bernhard Jacobi says

    Certainly a Megachile Eutricharaea species. In the field I took this species for macularis and still am reluctant to let go :), while the smaller (2/3 size) with the lilac eyes was new to me. I am surprised Ken IDed the latter as macularis!

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