Identification of Hemiptera

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11.04.2008 18:31, Dmitrii Musolin

Kleidocerys resedae. The photoperiod is related; Dmitry Leonidovich Musolin knows better about this.

Dmitry, do you mean that the release of Kleidocerys resedae in spring is related to the photoperiod? I've never read about it... They write that this species does not have a real diapause and that different stages can hibernate in a state of torpor, I know this, but I do not know what factor determines the output in the spring. (based on this data, I would assume that it is just warm).

If we talk about all bedbugs in general, then it is more difficult, because, undoubtedly, different species have different seasonal adaptations, including spring ones... But I would say that most species wintering in the adult stage become active in the spring as temperatures rise (above the threshold for post-diapausal development). Reproduction may be limited by the presence of writing. Yes, there are species that require a certain length of daylight to be active, but there are not many of them studied, while most of them lose sensitivity to the length of the day during the winter.

(if you are interested in articles and reviews on the seasonal development of bedbugs, please write - musolin@gmail.com).

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11.04.2008 18:37, REDBOOK

If we talk about all bedbugs in general, then it is more difficult, because, undoubtedly, different species have different seasonal adaptations, including spring ones... But I would say that most species wintering in the adult stage become active in the spring as temperatures rise (above the threshold for post-diapausal development). Reproduction may be limited by the presence of writing. Yes, there are species that require a certain length of daylight to be active, but there are not many of them studied, while most of them lose sensitivity to the length of the day during the winter.

(if you are interested in articles and reviews on the seasonal development of bedbugs, please write - musolin@gmail.com).

Thank you, obviously not the photoperiod, but the temperature. That's just trying to understand why such a mass and concentration of "ground" beetles on the windows of the upper floors)

14.04.2008 11:54, Dmitrii Musolin

Does the photoperiod affect those who spend the winter in wood?

"it's complicated. If wintering In the THICKNESS of wood, where light does not penetrate at all, then most likely an increase in daylight in the spring itself is not a signal for the resumption of development. But the photoperiod can determine the duration of the diapause even in autumn: for example, a 12-hour day will determine a longer diapause than a 10-hour day (since September to spring is longer than November).

But this has nothing to do with the type under discussion, as I understand it...

and I had just these beetles repeatedly climbing out when collecting foliage for reptiles earlier (March), it was worth bringing home.

-"Kleidocerys resedae is a very interesting species, I get the impression... If it is really massive, it would be very interesting (and probably not so difficult) to study... Regular gathering in nature in winter and determining the state of the sexual organs of females and males and/or checking whether they will mate immediately is the first stage that will allow us to clarify whether the species has a winter imaginal diapause... The second question is whether the larvae actually hibernate...

If someone was interested, I would provide intellectual and informational support (in the field of eco-physiology of bedbugs), experiment design, and so on... Are there any serious applicants?

14.04.2008 15:18, REDBOOK

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If someone was interested, I would provide intellectual and informational support (in the field of eco-physiology of bedbugs), experiment design, and so on... Are there any serious applicants?

For those who do not want to come to me) and I can give you some touches to biology - bedbugs appeared on April 1 (well, or a day earlier), they started breeding on April 5-6 (simultaneously with the ground beetle and krasnoklopom). And on the mass scale... on the upper floors in the city (Chelyabinsk) they completely covered the windows - in one of the forest parks, as far as it is suitable for bedbugs, they literally swarmed) They say they disappeared only today (it got colder to -6 at night).
The first year is so massive, although earlier in the spring there was a lot.

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23.04.2008 18:57, Tentator

The Russian language is great and powerful. I always thought "brown" meant dark brown. But it turns out that it is " Dark brown with a reddish tint (about the color, coat of the animal). (according to the dictionary of T. F. Efremova) I will know.

And in English, what is brown, what is brown-brown will be...

Yes, flowers can be difficult. And the main difficulty is that different dictionaries define color differently. Here, for example, are some definitions of the color "brown" in addition to Efremova's dictionary: iskrasna blackish (Dal), grayish brown (Ushakov), dirty brown (A. S. Bondartsev. Scale of colors. 1954). Once my research supervisor, reading the manuscript of my article, said about the color of the bristles: "What kind of silver is it? It's white", but did not fix anything))). I wonder if people who use halogen, fluorescent, and incandescent lights have the same color perception?

23.04.2008 19:01, Tentator

Good time of day!
Help, please, with the definition of water meters 1. - an extra-large reservoir on yayla; 2-vellia in the upper reaches of a mountain river-all from the Crimea:

A difficult question; you need to see the animals at least from the side. You must have a cheryre from the genus Gerris. 1 -- most likely, Gerris lacustris, it is most often found, but I can not guarantee. 2 -- the genus is correctly defined, Velia. Then the problems start. Most likely, V. affinis. If V. caprai, which has a brownish abdominal rim, as in your photo, then this is interesting, because this species, it seems, has not yet been collected in Ukraine. I advise you to collect copies, prick them and try to identify them. If you are interested, I will tell you by what signs.

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