Identification of Orthoptera (grasshoppers, crickets, etc.)

M-yes... They are similar to D. albifrons - but what should they do in MO?

By the way, about gampsokleis... Forget about sedakovii, you can only search for glabra and shelkovnikovae - and then only in the hope of shifting the northern boundaries of their ranges.

This post was edited by PVOzerski - 04.01.2012 13: 52

About these grasshoppers, I also thought that albifrons, but this is very ridiculous! These grasshoppers began to appear in large numbers, and at the end of the summer they completely drove out all the other blacksmiths from this meadow... They "chirp" much louder than usual, and fly 10 meters!

Here's another photo:

Pictures:

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Amazing! IMHO this is definitely albifrons, for sure someone brought or unwittingly arrived with eggs, along with plants, for example. I myself wanted to settle such people in the country before. But I was sure that they would not be able to survive because of the low temperatures in winter, which they do not tolerate, but probably at low temperatures in winter these could. I wonder how long this "population"can survive. For example, in a park where there have never been gray grasshoppers, I found them a year ago, probably verrucivorus got there with plants. I remember that there were reports about the movement of grasshoppers from the south to the Moscow region, and someone wrote about white-fronted ones. Maybe this is related to it=) .

But the choice is small-only between albifrons and verrucivorus. In general, it would be worth looking at the tip of the male's abdomen (at least the position of the tooth on the church).

I noticed these blacksmiths in that meadow in 2010, but there were very few of them.

It looks like they liked it there, and the conditions are good. Is there a large meadow where they live, what is the area? If it really is white-fronted, I wonder if it can spread further?

Yes, quite interesting! Here's what global warming is doing
By the way, very good advice about the underside of the abdomen, especially if there is a picture or verrucivorus itself - to compare, and there is a difference for females, in the location of perdanal sternites, I like here such information was given to distinguish between females.

The meadow will stretch 500 meters. There is a forest around it, a river to the north, and our village to the south. Grasshoppers of this type I happened to see a couple of times on the edge of the forest and in my garden... They easily fly over the river, followed by a couple of kilometers of meadows. I think they will settle gradually...

If there is an opportunity to look at live (not dry) representatives, it is also better to look at the color of the abdomen from below. The white - browed ones will have a creamy white color, and the gray ones will have a lemon yellow color, which I think is a fail-safe method, and I've always been able to do it myself. IMHO photos need more, because guessing on coffee grounds is useless =)

I can't imagine how they got there, unless someone threw them there on purpose...

I remember that the belly is white. They also bite painfully and eventually spoil the box in which they live.

I'm 100% sure they're white-fronted.

I agree with DanMar.They're definitely white-fronted.

Does anyone know how to find the most secretive blacksmiths (Kustolyubki, Izofya, Plastinokhvosty...)?

Well, kustolyubki like and not very secretive, they can be found near the forest, in dense wet thickets, yashitayu shady places like.

By adding and using bat-detector-a.

And you can hear the bush lover yourself.

If plate-tails are Leptophyes albovittata, then I remember that when I was a sophomore (1986, midsummer), these grasshoppers in the reserve "Forest on Vorskla" (Borisovka village, Belgorod region) massively sat on flowers and chewed pollen.

Is it a Singing Grasshopper? mo.

Pictures:

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Yes, of course.
"Who's that?"

This post was edited by Decticus-07.01.2012 13: 15

Where does the photographed Conocephalus larva come from?

From this article it turns out that there is a glabara in the Crimea? In the distribution tables of species, you can see..

File/s:



 231_239.pdf

size: 320.59 k
number of downloads: 719

If anyone is interested: Decticus verrucivorus has infinitely many different colors... For myself (in order to somehow distinguish them), I came up with a system for distributing different Decticus verrucivorus by color. I noticed that representatives of different groups choose different corners of the terrarium with different substrate and eat different food......

Choose a substrate that is close to the color? And what exactly are your food preferences?

If anyone is interested: Decticus verrucivorus has infinitely many different colors... For myself (in order to somehow distinguish them), I came up with a system for distributing different Decticus verrucivorus by color. I noticed that members of different groups choose different corners of the terrarium with different substrates and eat different food......

If I remember correctly, PVO dealt with just these issues. I hope he comments himself.

Choose a substrate that is close to the color? And what exactly are your food preferences?

Grasshoppers of gray color live in dry grass, green - green, and colored ones hide in the highest thickets near flowers.

And in terms of food, the darker the blacksmith, the more "meat products"in his diet.

= ) And I think that these colors are inherited, because the larvae that did not eat anything hatch in specific colors=) .

But they probably change it later.. Here I will try to trace this in terrarium conditions...

I looked at a little literature on this topic. In different erect wings, the color is regulated in different ways. In Oedipoda, individuals adjust it to the background and can change it even during the imaginal life (I observed it myself). For Gomphocerinae, there is data on the genetic determination of coloration. According to Decticus, I found a brief indication of the genetic nature of the elytra pattern. In general, we need to conduct a series of studies. For several years now, I have been trying to deploy them with graduate students - but the guys come too late, you can't do such things in one season. There are a lot of methodological subtleties here. For example, it is highly undesirable to use artificial backgrounds , since human color perception is not the same as insect color perception.

By the way, about choosing a background.

>Gray grasshoppers live in dry grass, green grasshoppers are green, and colored grasshoppers hide in the highest thickets near flowers

Is it the choice of the grasshoppers themselves, or is it the result of selective eating of the "wrong" ones by predators? Here you can set up fairly simple behavioral experiments - but, again, with natural backgrounds, and not with colored paper.

I keep it only with plants, but the area of the terrarium does not allow much acceleration with different colors and types of vegetation. Moreover, I don't know if they will hatch in the spring. The best option, I think, is to keep grasshoppers in a greenhouse or a room open to the environment, but without access to the "exit" of grasshoppers from the experimental territory. At the same time, there will be enough space to create different zones with plants and even food...
And here is a study of the migration of grasshoppers Anabrus simplex
http://biology.kent.edu/FacultyPages/Lorch/mormon.html

By the way, about choosing a background.

>Gray grasshoppers live in dry grass, green grasshoppers are green, and colored grasshoppers hide in the highest thickets near flowers

Is it the choice of the grasshoppers themselves, or is it the result of selective eating of the "wrong" ones by predators? Here you can set up fairly simple behavioral experiments - but, again, with natural backgrounds, and not with colored paper.

In a terrarium with dry grass on one side and green grass on the other, blacksmiths are divided into gray and green groups. If you put a gray one in green grass, it will return to dry grass. In my experience, gray blacksmiths have gray children, and colored ones have colored ones (Gray ones mate with gray ones, and green ones with green ones; if you plant a gray female with a green male, for example, they won't even look at each other!)

In my experience, gray smiths have gray children, and colored smiths have colored children.

After mating, do you keep each female in a separate cage until she is laid?

In a terrarium with dry grass on one side and green grass on the other, blacksmiths are divided into gray and green groups. If you put a gray one in green grass, it will return to dry grass. In my experience, gray blacksmiths have gray children, and colored ones have colored ones (Gray ones mate with gray ones, and green ones with green ones; if you plant a gray female with a green male, for example, they won't even look at each other!)

These observations should be verified by experiment and statistical processing of the results.

1. We take the arena (the square, however, I can't tell you). Half of it is covered with green grass, half with dry gray - yellow grass. It is necessary to ensure uniform lighting! We release animals.
1a. 1 animal is released, and once every few minutes we note which half it is on. To control the arena, turn it several times during the experience. The experiment is done in several repetitions (ideally-30 males and 30 females, each at least 2, and preferably 3 times; smaller samples may be enough).
1b. Similarly, but several pieces are released into the arena at once. Plus-faster, minus-the picture may be blurred due to the interaction of individuals with each other.

Processing. Chi-square: comparison of the number of individuals on the green and yellow halves of the arena with the expected 1:1.

With the formation of pairs.
2. Comparison of the call signals of males of different colors. Samples of 30 males, each male is written at 2--3 temperatures.

Processing. Comparison of regression lines (dependence of signal parameters on temperature. Main parameters for D. verrucivorus: pulse rate 1 -- 2, pulse rate 1--3, parcel frequency.

3. Accounting for pairings. Counting green/green, green/gray, gray/green, gray/gray pairs, checking the chi-square match 1:1:1:1. At least 2 repetitions - one on a green background, the other on a gray-yellow background. At least 30 pairings in each repetition. In general, it is a very time-consuming thing, especially in terms of time spent.

To be honest, I would start this study not on D. verrucivorus, but on Metrioptera brachyptera with their clear dimorphism of color.

Well, please: since I still plan to work in the same direction, let's coordinate with an eye on a joint article.

Yes, blacksmiths are so selective that a red-backed blacksmith (photo at the top of the page) chooses a red-backed female from a pile of yellow-backed females.

These observations should be verified by experiment and statistical processing of the results.

1. We take the arena (the square, however, I can't tell you). Half of it is covered with green grass, half with dry gray - yellow grass. It is necessary to ensure uniform lighting! We release animals.
1a. 1 animal is released, and once every few minutes we note which half it is on. To control the arena, turn it several times during the experience. The experiment is done in several repetitions (ideally-30 males and 30 females, each at least 2, and preferably 3 times; smaller samples may be enough).
1b. Similarly, but several pieces are released into the arena at once. Plus-faster, minus-the picture may be blurred due to the interaction of individuals with each other.

Processing. Chi-square: comparison of the number of individuals on the green and yellow halves of the arena with the expected 1:1.

With the formation of pairs.
2. Comparison of the call signals of males of different colors. Samples of 30 males, each male is written at 2--3 temperatures.

Processing. Comparison of regression lines (dependence of signal parameters on temperature. Main parameters for D. verrucivorus: pulse rate 1 -- 2, pulse rate 1--3, parcel frequency.

3. Accounting for pairings. Counting green/green, green/gray, gray/green, gray/gray pairs, checking the chi-square match 1:1:1:1. At least 2 repetitions - one on a green background, the other on a gray-yellow background. At least 30 pairings in each repetition. In general, it is a very time-consuming thing, especially in terms of time spent.

To be honest, I would start this study not on D. verrucivorus, but on Metrioptera brachyptera with their clear dimorphism of color.

Well, please: since I still plan to work in the same direction, let's coordinate with an eye on a joint article.

Yes, it's a difficult job. Question: Where can we find different blacksmiths? I just have most of the fields with high green grass -> almost no gray ones.

Near Kiev, I found a lot of gray blacksmiths, but the color is really very diverse, and the flooring in the arena must be alive or you can "pick" grass and leave it brutally? It's really a very interesting idea. But where to keep your patients? After all, for 60 grasshoppers you need a lot of space, and in one day it's just unrealistic to turn everything around, then you need to take care of them. In addition, if you keep everyone in a separate room, it makes the whole thing even more difficult!

In a good way, this should be deployed on the basis of a university biostation. In principle, our Vyritsa could also be suitable - but there, apparently, life will be only in the 1st half of the summer. And, as you wish, you should not start with Decticus. What is good about M. brachyptera - there are only two pronounced color forms, and not such a fierce polymorphism as in D. verrucivorus. Another possible candidate is Omocestus haemorrhoidalis. However, in Vyritsa I found neither one nor the other.