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Subfamily Donaciinae-rainbow leaf beetles

Community and Forum → Insects images → Subfamily Donaciinae-rainbow leaf beetles

PG18, 25.06.2008 10:08

Water
rainbow Donacia aquatica (Linnaeus, 1758)
8-9 mm. Imago in June and July. They are usually kept in numerous groups at the water's edge, making short (often only a few cm) flights from one plant to another. Sometimes they float on the surface of the water and even take off from it. Larvae lead a secretive lifestyle, developing in the rhizomes and stems of aquatic plants. They have an interesting device: two hollow spikes located at the end of the body, they pierce plant tissue and breathe due to the air contained in the cavities of plants. (Ogloblin, Medvedev, 1971: "Larvae of leaf beetles")

Pictures:
picture: Donacia_aquatica_0028.jpg
Donacia_aquatica_0028.jpg — (142.18к)

Comments

25.06.2008 10:10, PG18

Silken iris
Plateumaris sericea (Linnaeus, 1761)
The species is similar to the previous one in terms of its biotopic affinity, biology, and behavior. Adults are remarkable for sexual dimorphism: males are blue, and females are copper-red or red-purple in color.

This post was edited by PG18-25.06.2008 11: 40

Pictures:
picture: Plateumaris_sericea_0514.jpg
Plateumaris_sericea_0514.jpg — (127.16к)

Likes: 15

25.06.2008 10:13, PG18

I am looking for good pictures of rainbows in nature (especially Macroplea appendiculata). I will also be grateful for the continuation of the topic.

02.07.2008 8:22, PG18

As it turns out, as a result of the observation of entwined pairs, Plateumaris sericea should rather be talking about aphigenic color polymorphism.
Females are copper-red, red-purple, or violet-blue.
Males - blue, purple, copper-red or red-purple (like females), blue-green, green, golden-green!
This is if they are heterosexual... wink.gif
I wonder if the beetles themselves distinguish these shades?..

Pictures:
picture: Plateumaris_sericea_0827_1.jpg
Plateumaris_sericea_0827_1.jpg — (142.17к)

picture: Plateumaris_sericea_0834_1.jpg
Plateumaris_sericea_0834_1.jpg — (83.01к)

Likes: 7

02.07.2008 8:28, PG18

Plateumaris sericea
Purple female and golden green male

Pictures:
picture: Plateumaris_sericea_0096_1.jpg
Plateumaris_sericea_0096_1.jpg — (139.99к)

picture: Plateumaris_sericea_0051_1.jpg
Plateumaris_sericea_0051_1.jpg — (68.61к)

Likes: 10

16.07.2008 8:06, PG18

IRIDESCENT WATER LILY
Donacia crassipes Fabricius, 1775

Body length 8-13 mm. The color of the top is variable: blue, purple, green, or bronze. The hind legs are twice as long as the rest; their thighs reach the top of the elytra, in males with two, in females with one prong on the inner side. European-Siberian species. It is found in late June and July, in lakes, oxbow lakes, and backwaters of slow-flowing rivers. Beetles are kept on the leaves of water lilies and pods spread out on the surface of the water. Larvae develop underwater on the petioles of leaves and roots of these plants.

Pictures:
picture: Donacia_crassipes_0105.jpg
Donacia_crassipes_0105.jpg — (84.32к)

picture: Donacia_crassipes_0098.jpg
Donacia_crassipes_0098.jpg — (97.36к)

Likes: 12

16.07.2008 19:35, Victor Titov

What great pictures! I'm thrilled. Did you swim with a camera in your hands?!
Likes: 1

08.02.2010 22:09, Алексей Сажнев

Donacia crassipes Fabricius, 1775-female and male

Saratov region, Rtishchevsky district, Golitsino village, Khoper River, with water lilies, 20. VI. 2007 (2 males, 4 females) leg. I. V. Kryukov, det. A. S. Sazhnev, collection of A. S. Sazhnev

Pictures:
картинка: Donacia_crassipes_Fabricius__1775___female.jpg
Donacia_crassipes_Fabricius__1775___female.jpg — (259.32к)

картинка: Donacia_crassipes_Fabricius__1775___male.jpg
Donacia_crassipes_Fabricius__1775___male.jpg — (270.62к)

Likes: 8

11.02.2010 11:41, Penzyak

Is there a photo of Donacia malinovsky Ahr.? At least from the old collection.
In our region, this species was found a couple of times, BUT there are no modern finds. Larvae on water manna (not described so far). The list of Penza rainbows (and leaf-eaters) is published by Irina Pronina (nickname on the website "Shtuchka").

11.02.2010 13:30, Victor Titov

Is there a photo of Donacia malinovsky Ahr.? At least from the old collection.
In our region, this species was found a couple of times, BUT there are no modern finds. Larvae on water manna (not described so far). The list of Penza rainbows (and leaf-eaters) is published by Irina Pronina (nickname on the website "Shtuchka").

http://www.biol.uni.wroc.pl/cassidae/Europ...malinovskyi.htm
Likes: 2

11.02.2010 16:54, Penzyak

Probably these are European specimens eek.gif- ours should be with a dark purple top, the sides of the elytra are golden or green umnik.gif. In the Middle Volga region, this species is unknown (we have two old finds, the material is from Shtuchka). Irina Gennadyevna, can you post a photo!? And everyone in the new field season will be looking for this rare animal jump.gif???

This post was edited by Penzyak - 11.02.2010 16: 57

12.02.2010 3:40, omar

Probably these are European specimens eek.gif- ours should be with a dark purple top, the sides of the elytra are golden or green umnik.gif. In the Middle Volga region, this species is unknown (we have two old finds, the material is from Shtuchka). Irina Gennadyevna, can you post a photo!? And everyone in the new field season will be looking for this rare animal jump.gif???

Malinowski is usually devoid of a bright metallic luster, more often brown or red. Only European specimens have seen this, in particular, those from the Moscow region, Pskov, and Novgorod. Series of this type were defined by Benkovsky. In addition, Malinowski is often combined with fennica and considered as a form of the latter. I didn't see any metal-painted Malinowski ones.

This post was edited by omar - 12.02.2010 04: 00
Likes: 2

17.03.2010 10:08, vasiliy-feoktistov

Well, my contribution to the topic:
2 types of raduzhnitsa near Moscow.
1) Donacia cinerea Herbst, 1784
2,3,4) Various color forms of Plateumaris sericea Linnaeus, 1758
All beetles from here: M. O. Balashikha district, Zheleznodorozhny district, swampy bank of the Chernaya River, on sedge.
Collected in one day: 03.06.2005

Pictures:
picture: 1.jpg
1.jpg — (57.74 k)

picture: 2.jpg
2.jpg — (57.16 k)

picture: 3.jpg
3.jpg — (66.07к)

picture: 4.jpg
4.jpg — (54.33 k)

Likes: 5

17.03.2010 20:29, Stas Shinkarenko

Donacia ?marginata. Volgograd region, Mikhailovsky district, Medveditsa River, July 25, 2009.

Pictures:
picture: Donacia1.jpg
Donacia1.jpg — (143.87к)

Likes: 7

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