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Tiny Weevil


Tiny Weevil
Photo Information
Copyright: Dmitry Gavryushin (Osmeterium) Silver Star Critiquer/Gold Note Writer [C: 10 W: 0 N: 158] (517)
Genre: Animals
Medium: Color
Date Taken: 2006-07-16
Categories: Insects
Camera: Nikon D70S, AF Nikkor 28-80mm 1:3.5-5.6 D (reversed)
Exposure: f/16, 1/125 seconds
Details: (Fill) Flash: Yes
Photo Version: Original Version
Theme(s): Weevils [view contributor(s)]
Date Submitted: 2007-02-20 12:10
Viewed: 3848
Points: 16
[Note Guidelines] Photographer's Note
Nanophyes marmoratus (Curculionidae).

Size around 1.5 mm. Coloration is quite variable. This pigmy beetle is easy to overlook because of its size, and it occurs mostly in humid habitats since its larvae feed on Purple Loosestrife (Lythrum salicaria).

After hibernation adults begin feeding on the young leaves of small pre-flowering Lythrum salicaria plants. After flowering initiates, the adults move to the flower spikes and feed on the receptacle and ovaries of the developing flower buds. These unopened flower buds are primarily located in the upper portion of the flower spike. Flower buds damaged by adult feeding are often aborted or excised.

Eggs are deposited singly in the tip of unopened flower buds. Females can oviposit upwards of 2 eggs per day for a total egg number of 60 to 100 eggs for the entire reproductive period. Larvae feed and destroy the stamens, petals, and ovary, often in that order. Pupation occurs in the lower portion of the bud where a pupation chamber is constructed from frass that had accumulated during the larval feeding period. The emerging adults feed on the leaves before beginning hibernation. There is only one generation per year and developmental time from egg to adult is approximately 1 month.

The source of additional information:
http://el.erdc.usace.army.mil/aqua/apis/biocontrol/html/nanophye.html

cicindela, Argus, JORAPAVI, ramthakur, Kaszek has marked this note useful
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Critiques [Translate]

  • Great 
  • batu Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1079 W: 293 N: 4497] (16383)
  • [2007-02-20 12:21]

Hello Dmitry,
you show admirable details of this small wheevil, in particular, the eyes look interesting. Point of view and depth of field are superb.
Best wishes, Peter

Hello Dmitry!
Another great presentation! Good picture (maybe a little better DOF would be nice), interesting object from rarely presented group, and the very professional note. All what is needed to teach us something new.
I really like this picture. To take a shot of 1.5 mm species is not easy, especially if it is a beetle.
My best regards,
Radomir

  • Great 
  • Argus Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5038 W: 260 N: 15594] (50626)
  • [2007-02-20 12:52]

Hello Dmitry,
A very skillful use of your camera and lens has resulted in an eye-opener for most of us on TN. To see such detail and colour on a beetle of this small size is remarkable. You are nearly in the sphere of digimicroscoping! To make it even better, the flash has lit this up as if it were daylight.
Well done and TFS!
Ivan

  • Great 
  • jmp Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1659 W: 95 N: 2273] (8415)
  • [2007-02-20 17:06]

Hi Dmitry,
Rare insect very well captured. You've got an excellent approach for 1.5 mm bug!
TFS, José M.

Hola Dmitry.
Buen encuadre con mucho detalle, de esta especie tan pequeña y curiosa. Un cordial saludo

Hello Dmitry,
A first rate macro image of this unusual Weevil.
The details and colours are just perfect.
Your note gives balanced information on the insect.
I have uploaded a rather late response to your extremely helpful critique you had written last month to ID a Syntomis moth. Kindly do view it if you have time.
Best regards,
Ram

Bonjour,
Quel nez !
Bonne journée.
clnaef

Hello Dmitry,
Superb macro-shot of weevil. I like this one.
Very nice composition.
TFS

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