Loading ...
Sorry, an error occurred while loading the content.

Re: Recently Introduced Bees

Expand Messages
  • Matthias Buck
    Hi Sam and others, Thanks for the interesting postings on three species of introduced bees. I should watch out for them here in Ontario because many of the
    Message 1 of 5 , May 18, 2007
    • 0 Attachment
      Hi Sam and others,

      Thanks for the interesting postings on three species of introduced bees.
      I should watch out for them here in Ontario because many of the species
      that become established in your country make it up here pretty quickly
      (but we have not always done a very good job noticing them early!). Good
      examples are Megachile sclupturalis, Hoplitis anthocopoides, Chelostoma
      rapunculi, Ch. campanularum to name just a few.

      Unfortunately, my expertise is mostly in aculeate wasps. Could you post
      some brief diagnoses that will distinguish these species from others?

      I assume climatically all three should be able to become established
      here. Based on the distribution map referred to this would certainly be
      the case for the Anthophora.

      Best regards,

      Matthias


      Dr. Matthias Buck, Curator
      Insect Collection
      Dept. of Environmental Biology
      University of Guelph
      Guelph, Ontario
      Canada, N1G 2W1
      E-mail: mbuck@...
      Phone: (519) 824-4120 ext.: 52582
      Fax: (519) 837-0442
      www.uoguelph.ca/debu/
    • Sam Droege
      Matt: Good suggestion... Osmia taurus and O. cornifrons appear nearly identical, particularly the males. The technical separations are listed below. In
      Message 2 of 5 , May 21, 2007
      • 0 Attachment

        Matt:

        Good suggestion...

        Osmia taurus and O. cornifrons appear nearly identical, particularly the males.  The technical separations are listed below.  In general these are large Osmia species, the same size as the closely related Blue Orchard bee, O. lignaria.  The females are distinct in the presence of a pair of extremely prominent horn-like projecting from either side of the clypeus.  The males are much closer in aspect to O. lignaria.  Both species' integument tends strongly toward the brown/black part of the spectrum but can have slightly metallic overtones.  Hairs can vary from black to white, but are more consistently categorized as tan with at times have a burn orange overtone, particularly prominent in some O. taurus specimens.  Their habits get them noticed in that they are constantly probing houses, garages, and lumber for nest sites.  Any open hole larger than about one-quarter inch seem useable and they often end up in people's homes who leave their unscreened windows open (like me).  Drilling holes in any sort of wood to create trap nests is an excellent way to monitor their presence .... and also makes it easy to study their distributional patterns as such nests could easily deployed over large areas in the winter and then picked up and reared the following winter (hint, hint).

        Pictures are available for O. taurus at:

        http://pick4.pick.uga.edu/mp/20q?guide=Osmia_male

        Just click on its name.

        You can google up pictures of O. cornifrons.

        Technical differences.

              Females - Extent of hairless region on clypeus.

        O. cornifrons - Hairs present on the clypeus immediately above the very large horns - these horns located on the far sides of the clypeus  

        O. taurus - Hairs present on the clypeus farther away from the very large horns, the distance without hairs above the horns about the same distance as from the top of the horns to the rim of the clypeus  

             Males


        O. cornifrons - The central straight portion of the apical rim of the clypeus is shiny and unpitted except in a few individuals which may have scattered pits on the far sides, this shiny area forming a uniform band across the front of the clypeus - Clypeus hair color white with a few black hairs on the sides - Scutum, scutellum, T1 and T2 hairs off-white to tan, with scattered black hairs intermixed on the scutum and scutellum, however these sometimes absent  

        O. lignaria - Clypeus hair color entirely white - Scutum, scutellum, T1 and T2 hairs bright white, may or may not have black hairs intermixed  

        O. taurus - The very center of the apical rim of the clypeus is shiny and unpitted but at the far edges of the straight portion of the rim, before it curves back towards the head, this rim is invaded by the same pattern of heavy pits and roughness found on throughout the rest of the clypeus, this roughness usually extends near but not quite to the rim, thus the shiny unpitted portion of the rim forms a semi-circle rather than a uniform band as in cornifrons - Clypeus hair color white with scattered dark hairs on the far sides - Scutum, scutellum, T1 and T2 hairs clearly orange to burn sienna, no black hairs intermixed  

        Anthophora plumipes

        This species is about the 1.5 times the size of a honeybee and is shaped like other Anthophora, that is to say mildly bumblebee like.  Overall the female, by far the most commonly observed sex, is a mix of smokey white and black hairs, giving it a dark but not black look, and thus is rather nondescript, however, the golden scopal hairs are distinctive.  The best place to seemingly find them is around foundation plantings of domesticated azaleas.  

        Google images has plenty of pictures of this species from Europe.

        sam

        Sam Droege  Sam_Droege@...                      
        w 301-497-5840 h 301-390-7759 fax 301-497-5624
        USGS Patuxent Wildlife Research Center
        BARC-EAST, BLDG 308, RM 124 10300 Balt. Ave., Beltsville, MD  20705
        Http://www.pwrc.usgs.gov


        All day and night, music,
        a quite, bright
        reedsong. If it
        fades, we fade
          - Rumi




        Matthias Buck <mbuck@...>
        Sent by: beemonitoring@yahoogroups.com

        05/18/2007 09:19 AM

        Please respond to
        beemonitoring@yahoogroups.com

        To
        beemonitoring@yahoogroups.com
        cc
        Subject
        [beemonitoring] Re: Recently Introduced Bees





        Hi Sam and others,

        Thanks for the interesting postings on three species of introduced bees.
        I should watch out for them here in Ontario because many of the species
        that become established in your country make it up here pretty quickly
        (but we have not always done a very good job noticing them early!). Good
        examples are Megachile sclupturalis, Hoplitis anthocopoides, Chelostoma
        rapunculi, Ch. campanularum to name just a few.

        Unfortunately, my expertise is mostly in aculeate wasps. Could you post
        some brief diagnoses that will distinguish these species from others?

        I assume climatically all three should be able to become established
        here. Based on the distribution map referred to this would certainly be
        the case for the Anthophora.

        Best regards,

        Matthias

        Dr. Matthias Buck, Curator
        Insect Collection
        Dept. of Environmental Biology
        University of Guelph
        Guelph, Ontario
        Canada, N1G 2W1
        E-mail:
        mbuck@...
        Phone: (519) 824-4120 ext.: 52582
        Fax: (519) 837-0442
        www.uoguelph.ca/debu/


      • Asif Sajjad
        Hello Sam! Please guide me about any good digital camera. I want to take snaps of bees sitting on flowers from a considrable distance so that its activitiy may
        Message 3 of 5 , Aug 19 6:49 PM
        • 0 Attachment
          Hello Sam!
                          Please guide me about any good digital camera. I want to take snaps of bees sitting on flowers from a considrable distance so that its activitiy may not be disturbed. Please guide me in sence of digital and optical zooms.
           
          Thanks
           
           Asif Sajjad
          PhD student
          BZ Univ. Pakistan
        • Marie Springer
          I also hvae been looking for a good digital camera, but I have no problem getting up close, please let us both know if you can suggest something. Asif Sajjad
          Message 4 of 5 , Aug 20 5:14 AM
          • 0 Attachment
            I also hvae been looking for a good digital camera, but I have no problem getting up close, please let us both know if you can suggest something.


            Asif Sajjad <asifbinsajjad@...> wrote:
            Hello Sam!
                            Please guide me about any good digital camera. I want to take snaps of bees sitting on flowers from a considrable distance so that its activitiy may not be disturbed. Please guide me in sence of digital and optical zooms.
             
            Thanks
             
             Asif Sajjad
            PhD student
            BZ Univ. Pakistan



            Marie Springer, President
            Friends of Wallkill River
            National Wildlife Refuges
            1547 Route 565, Sussex, NJ 07461
            201-660-8880


            Yahoo! oneSearch: Finally, mobile search that gives answers, not web links.

          • David Inouye
            I can recommend the following as a high-send solution: a digital SLR camera with a good macro lens and a flash system. In specific, I use Nikon D200, a Nikon
            Message 5 of 5 , Aug 24 5:30 AM
            • 0 Attachment
              I can recommend the following as a high-send solution: a digital SLR
              camera with a good macro lens and a flash system. In specific, I use
              Nikon D200, a Nikon 105mm macro lens, and the flash system that
              mounts on the front of the lens. This gives a good working distance
              from the bee, and good depth of field. A less expensive option is
              something like one of the Nikon Coolpix models that has a macro mode;
              the disadvantage is that you have to be pretty close to the bee to
              get a picture.

              David Inouye

              At 06:14 AM 8/20/2007, you wrote:

              >I also hvae been looking for a good digital camera, but I have no
              >problem getting up close, please let us both know if you can suggest something.
            Your message has been successfully submitted and would be delivered to recipients shortly.