Sunday, 24 February 2019
Friday, 22 February 2019
Thursday, 21 February 2019
Wednesday, 20 February 2019
10-10-2016 MONTE CORONA, VALENCIA - GEOMETER MOTH (Family Geometridae)
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The geometer moths are moths belonging to the family Geometridae of the insect order Lepidoptera, the moths and butterflies. Their scientific name derives from the Ancient Greek geo γεω (derivative form of γῆ or γαῖα "the earth"), and metron μέτρον "measure" in reference to the way their larvae, or inchworms, appear to measure the earth as they move along in a looping fashion. Geometridae is a very large family, containing around 23,000 described species; over 1400 species from six subfamilies are indigenous to North America alone. A well-known member is the peppered moth, Biston betularia, which has been the subject of numerous studies in population genetics. Several other geometer moths are notorious pests.
10-10-2016 MONTE CORONA, VALENCIA - SHIELD BACKED KATYDID (Thyreonotus corsicus)
Thyreonotus corsicus is a species belonging to the family Tettigoniidae subfamily Tettigoniinae. It is found in the western Mediterranean from the Iberian Peninsula over the south of France to the southwestern Alps. Isolated populations are found in Corsica and Sardinia.
Size 29 mm
Habitat is Grasslands, bushes, above vegetation, up to 1,800 metres above sea level
Its diet is omnivorous and it is considered important for the control of the processionary moth Thaumetopoea pityocampa.
We can see it between July and November.
Distribution in the Western Mediterranean.
10-11-2015 MONTE CORONA - SOUTHERN FIELD CRICKET (Gryllus bimaculatus)
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Gryllus bimaculatus is a species of cricket in the subfamily Gryllinae. Most commonly known as the two-spotted cricket, it has also been called the "African" or "Mediterranean field cricket", although its recorded distribution also includes much of Asia, including China and Indochina through to Borneo. It can be discriminated from other Gryllus species by the two dot-like marks on the base of its wings.
The species is popular for use as a food source for insectivorous animals like spiders and reptiles kept as pets or in zoos. They are easy to raise and do not require prolonged exposure to cold in order to complete their life cycle.
In the wild, male crickets do not tolerate one another and will fight until there is a winner. The loser usually retreats without serious injury. The fighting method involves opening the mandibles as wide as possible, gripping the opponent's mandibles and pushing with the hind legs.
Male crickets of this species produce several distinctive chirps, though each sound is made by rubbing the two outer wings together. Loud and steady chirps made throughout the night are to attract females and to warn off other males. Loud fast-frequency chirps are emitted when males encounter one another and are preparing to fight. They are intended to frighten off the rival male. There are two other chirp patterns that can be observed in their mating behaviors. A soft clipping sound, 'calling' song, is made when a female is known to be nearby but in a certain distance, and more rigorous sound, 'courtship' song, is made when a female is close enough to mate (mounting on the male's back). These two songs can be easily distinguished by human ears based on its chirp patterns and frequency components.
Whether cricket song pattern (e.g. frequency spectrum) reflect song-emitter's body size is controversial. A recent study failed to detect body-size effect on both calling and courtship songs of G. bimaculatus.
Tuesday, 19 February 2019
28-10-2016 BEIJING, CHINA - ORIENTAL MAGPIE (Pica serica)
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The Oriental magpie (Pica serica ) is a species of magpie found from south-eastern Russia and Myanmar to eastern China, Korea, Taiwan, Japan and northern Indochina. It is also a common symbol of the Korean identity, and has been adopted as the "official bird" of numerous South Korean cities, counties and provinces. Other names for the Oriental magpie include Korean magpie and Asian magpie.
Compared to the Eurasian magpie, it is somewhat stockier, with a proportionally shorter tail and longer wings. The back, tail, and particularly the remiges show strong purplish-blue iridescence with few if any green hues. They are the largest magpies. They have a rump plumage that is mostly black, with but a few and often hidden traces of the white band which connects the white shoulder patches in their relatives.The Oriental magpie has the same call as the Eurasian magpie, albeit much softer.
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In Korea, the magpie (까치, "kkachi") is celebrated as "a bird of great good fortune, of sturdy spirit and a provider of prosperity and development". In the same vein of bringing fortune and luck, Korean children were also taught that when you lose a tooth, to throw it on the roof singing a song for the magpie; 까치야 까치야 헌이 줄게. The bird will hear your song and bring you a new tooth.
Similarly, in China, magpies are seen as an omen of good fortune. This is reflected in the Chinese word for magpie, simplified Chinese: 喜鹊; traditional Chinese: 喜鵲; pinyin: xǐquè, in which the first character means "happiness". It was the official ‘bird of joy’ for the Manchu dynasty.
In Japan, it is found in all the main islands except Shikoku. It is called Kasasagi 鵲, the same name as is used for the Eurasian magpie (Pica pica ).
Monday, 18 February 2019
Saturday, 16 February 2019
Friday, 15 February 2019
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