Melolonthidae Crunches

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Bad Den, 14.03.2007 12:52

Polyphylla (Mesopolyphylla) irrorata (Gebler, 1841)
Male, Kyrgyzstan, July 2000
user posted image

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30.07.2010 14:16, PG18

It seems that all the current Kazakh crushers have decided, and you can show them.
First, Chioneosoma. Beetles are covered with a whitish coating, which darkens when wet. They are active at dusk, before or after sunset, when females feed on plants, and males fly, looking for them by smell. During the day, in the heat, beetles usually burrow into the soil. Only comparatively widespread Chioneosoma porosum, Ch. gorilla, and Ch. pulvereum were found and recorded.
Ch. gorilla, characterized by the thickest pubescence of the pronotum and thighs, is found on sands, more often on juzgun.
Ch. pulvereum is also found on the sands, which are sometimes extremely beaten out, without shrubs at all, and reaches at least the Aral Karakum Mountains to the east.
The most polytopic Ch. porosum, with a characteristic notch on the leading edge of the platypus, was common in the Syr Darya valley except in deserts. Beetles usually fly in the crowns of trees.

By the way, most other species of Kazakhstan chioneosomes have small ranges. For example, Chioneosoma subporosum and C. demetrii are considered endemic to the Syr Darya and Zeravshan valleys, while Chioneosoma kizilkumense, C. mucidum, and C. rostovtzovi are endemic to the eastern part of the Kyzylkum desert...

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картинка: Scarabaeidae_Chioneosoma_gorilla_Moiynkum_11_05_10_0674_____________.JPG

картинка: Scarabaeidae_Chioneosoma_gorilla_Moiynkum_11_05_10_0674_____________.JPG

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картинка: Scarabaeidae_Chioneosoma_pulvereum_Kazalinsk_12_05_10_0057_____________.JPG

Scarabaeidae_Chioneosoma_pulvereum_Kazalinsk_12_05_10_0057_____________.JPG — (114.93к)

картинка: Scarabaeidae_Chioneosoma_porosum_Kyzylkum_2_05_10_0322_____________.JPG

Scarabaeidae_Chioneosoma_porosum_Kyzylkum_2_05_10_0322_____________.JPG — (223.49к)

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30.07.2010 14:30, PG18

Polyphilla - large, summer (unlike spring chineosomes) crunches that do not feed during the imago phase. Active at night. Mostly males fly, while females crawl on the ground and plants and only occasionally take off low.
Polyphilla irrorata and Polyphilla adspersa came to light in valleys in the foothills of Karatau and Syr Darya.
Polyphilla alba , which differs from adspersa in the enlarged club of its antennae, flew on the sands in the slopes of northern deserts and southern steppes, and en masse.

Pictures:
картинка: Scarabaeidae_Polyphilla_irrorata_Karatau_27_06_10_0195_____________.jpg

картинка: Scarabaeidae_Polyphilla_irrorata_Karatau_27_06_10_0195_____________.jpg

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картинка: Scarabaeidae_Polyphilla_adspersa_Karatau_287_06_10_0183_____________.jpg

Scarabaeidae_Polyphilla_adspersa_Karatau_287_06_10_0183_____________.jpg — (74.93к)

картинка: Scarabaeidae_Polyphilla_alba_Sary_su_21_06_10_0414_____________.JPG

Scarabaeidae_Polyphilla_alba_Sary_su_21_06_10_0414_____________.JPG — (121.57к)

картинка: Scarabaeidae_Polyphilla_alba_Sary_su_21_06_10_0464_____________.JPG

Scarabaeidae_Polyphilla_alba_Sary_su_21_06_10_0464_____________.JPG — (83.35к)

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05.12.2011 16:29, Dergg

In the Kaliningrad region, there is a stable population on the Curonian Spit. They fly on the sand dunes covered with willows, not far from the pine forest. According to my observations, summer starts about an hour after sunset and continues until complete darkness. They fly mainly in the crowns of willows growing on dunes, and males, in general, at a higher altitude than females. In the daytime, most of the beetles burrow into the sand, but some individuals remain sitting on the branches of shrubs, occasionally even fly during the day.

By the way, I have never found this beetle on other parts of the Kaliningrad coast of the Baltic Sea, in addition to the Curonian Spit (although I collected quite a lot in these places). Perhaps, in such northern latitudes, the microclimate is important for it, which takes place on a sandbar, and does not matter - in the "continental" part of the coast.

P. S. By the way, the indications that representatives of the genus Polyphylla do not feed at the imago stage are not entirely correct - I have found (during the daytime) female P. fullo chewing pine needles.

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