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Summary of Recent Strepsiptera Found in North American Bees and Wasps - More Specimens Needed

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  • Sam Droege
    All: Below is a summary sent to me by Jakub Straka who is working on the Strepsipterans that parasitize bees and wasps (the females usually appear as rounded
    Message 1 of 1 , Feb 3 3:40 AM
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      All:

      Below is a summary sent to me by Jakub Straka who is working on the Strepsipterans that parasitize bees and wasps (the females usually appear as rounded mounds sticking out of the tergites and are referred to as stylopids).

      For those of you not familiar with the group you can see learn more at:
      http://en.wikipedia.org/wiki/Strepsiptera
      http://www.cals.ncsu.edu/course/ent425/compendium/streps~1.html

      Good Pictures at:
      http://bugguide.net/node/view/9667

      We see stylopized specimens infrequently....only 1/5000 or so specimens and thus any specimen with a stylopid is a valuable one.   We periodically send Jakub these specimens and if you find one of these valuable individuals we urge you to either send it to us at BIML (address below) and we will send it to Jakub or you can send it to him directly at his address which is also below.

      Thanks

      sam

      (what follow's is Jakub's summary)  Note that he has a number of additional specimens that have yet to be determined.
      --------------------
      Specimens


      voucher                 species                 individuals                 HOST                 HOST family                 locality

      SCs1                 Stylops cressoni Pierce, 1909                 2F                
      Andrena cressonii                 Andrenidae                 Jackson Co., South Dakota

      SCs2                 Stylops cressoni Pierce, 1909                 1F                
      Andrena cressonii                 Andrenidae                 Jackson Co., South Dakota

      SEr1                  Stylops cf. shannoni Pierce, 1918                 1F                
      Andrena erigeniae                 Andrenidae                 Calvert Co., Maryland

      SEr2                  Stylops cf. shannoni Pierce, 1918                 1F                
      Andrena erigeniae                 Andrenidae                 Loudoun Co., Virginia

      SEr3                  Stylops cf. shannoni Pierce, 1918                 1F                
      Andrena erigeniae                 Andrenidae                 Henryton PVSP, Howard Co., Maryland

      HDvi1                 Halictoxenos jonesi Pierce, 1908                 1EMP+1F                
      Lasioglossum viridatum group                 Halictidae                 Wayne Co., Kentucky

      HDcl1                 Halictoxenos jonesi Pierce, 1908                 1F                
      Lasioglossum cattellae                 Halictidae                 Onego, Pendleton Co., West Virginia

      HDap1                 Halictoxenos jonesi Pierce, 1908                 1F                
      Lasioglossum apopkense                 Halictidae                 Chesterfield Co., South Carolina

      EIme1                 Eupathocera smithii (von Heyden, 1867)                 1F                
      Isodontia mexicana                 Sphecidae                 Onego, Pendleton Co., West Virginia

      ESpe1                 Eupathocera smithii (von Heyden, 1867)                 1F                
      Sphex pensylvanicus                 Sphecidae                 Dorchester Co., Maryland

      Strepsiptera material sent for studies to me by US collectors, mainly
      by Sam Droege, are only partially determined here. The specimens are  very valuable
      material, and raise more questions than I have answers. For example, Stylops cf.
      shannoni is determined only tentatively according to Bohart's revision
      of North American Strepsiptera. The species is described from male and
      the specimens sent to me are females. Bohart suggests the host is
      probably Andrena erigeniae.

      Material of the genus Halictoxenos is determined to species using simply the
      most priority name of the genus Halictoxenos from hosts within Lasioglossum, subgenus .
      Dialictus, however, there are plenty of other possible names. Studying the
      morphology of these parasites suggests high variability and many malformations, which further
      complicates the work.


      Another question is conspecifity of Eupathocera parasites from two different genera of Sphecid wasps - Isodontia and
      Sphex. The real species status is not possible to solve by morphology
      now, but DNA analyses can help. We are going to compare morphology
      with the cladogram based on DNA data and we are also going to prepare
      barcoding database for Strepsiptera. For this reason the material of
      Strepsiptera useful for DNA is highly needed. I would be very glad if
      you help me answer my questions. There are many more taxonomic
      problems in this group of interesting insects. All recently collected
      material is useful, particularly if it is preserved in absolute alcohol. We also appreciate
      older material, but utility of this material is limited to morphology
      only. However, this older material can help further in finding new characters for future
      determination keys.

      Jakub

      Jakub Straka
      Department of Zoology
      Faculty of Science
      Charles University in Prague
      Vinicna 7
      128 44 Praha 2
      Czech Republic
      --------------------------


      Sam Droege  sdroege@...                      
      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


      A parasite came to visit me
      and sipped my blood for morning tea
      She dug me so well
      Her kids now dwell
      Eating my guts out savagely.


                A parasite takes a snack and leaves,
               The parasitoid stays for the whole meal
               making sure it gets its just desserts.


      Bruce Noll
      University of New Mexico


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