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Information sur la photo
Copyright: Martin Trimmer (Martrim) Silver Note Writer [C: 3 W: 0 N: 12] (69)
Genre: Animals
Média: Couleur
Date de prise de vue: 2004-10-13
Catégories: Insects
Appareil photographique: Nikon D70, Tamron 28-300XR
Exposition: f/5.6, 1/1250 secondes
Versions: version originale
Date de soumission: 2004-10-26 20:48
Vue: 3642
Points: 2
[Ligne directrice - Note] Note du photographe
I stand corrected on the information I gave earlier about this photo. Following good advice, I did a little more research, and came up with the following information. After all, what good is a lengthy bit of information if it’s inaccurate? The feedback at TrekNature regarding the contents of our photos is, to me, at least as important as the feedback pertaining to the technical aspects of the photo-taking itself. Thanks again for all your continued help. Now, here’s the updated info which I hope is accurate this time:

These are the Large Milkweed Bug… Kingdom Animalia, Phylum Arthropoda, Superclass Hexapoda, Class Insecta, Order Hemiptera, Family Lygaeidae, Genus Oncopeltus, Species fasciatus

Nymphs (different stages)
Milkweed bugs have incomplete metamorphosis. The nymphs (immatures) look like the adults except that they do not have full wings and their color pattern is different. Black wing pads appear early in their development. Nymphs have bright red abdomens. Milkweed bugs usually molt 5 times. They have 5 nymphal instars (stages) before becoming an adult. Eggs take about 1 week to hatch and a month to become adults at room temperature.

Development of milkweed bug is: emergence - (1st instar) - first molt - (2nd instar) - second molt - (3rd instar) - third molt - (4th instar) - 4th molt - (5th instar) - 5th molt (adult). Based upon this information, I’d say these represent the second molt of this bug.

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Critiques [Translate]

  • Good 
  • PDP Gold Star Critiquer/Gold Star Workshop Editor [C: 2821 W: 344 N: 3779] (11769)
  • [2004-10-27 4:40]

Hi Martin, It's a good picture, a little soft in focus maybe. I appreciate the effort you put into your note but these are not beetles. These are nymphs of a true bug, they do not have a larval/pupal stage like beetles do; This belong to Order Hemiptera, suborder Heteroptera. I can't help you with the species name I'm afraid. Maybe you could do a little research and update your note. These look similar (but not the same) to the Box Elder bug (Leptocoris trivittatus) - maybe a good place to start looking for similar species. Good luck.

  • Good 
  • red45 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2636 W: 74 N: 9100] (31094)
  • [2004-10-27 5:55]

Maybe cropping could help? Bugs in upper right corner and do more contrast? I don't know species of this bug but to me it looks like young Pyrrhocoris apterus.

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