Libellula luctuosa
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Libellula luctuosa (male) in Ontario |
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| ( Burmeister , 1839) |
Libellula luctuosa is a dragonfly species ofthe sailing dragonfly family that iswidespreadin North America except in the Great Plains .
features
Construction of the Imago
The animal reaches a length between 38 and 50 mm, of which the abdomen is 24 to 32 mm.
The front head is light yellow in females and young males, but darkens to black, especially in males, with increasing age. The pterothorax is dark brown apart from a narrow yellow stripe at the level of the spine . The color changes with increasing age in the females to solid brown and in the males to black and then to dusty blue. The pages are light yellow with an unclean dark line on the third segment. Again a change takes place here with age, so the patterning of this area disappears in the females and in the males a dark brown tone sets in. The tips of the wings show partial shade, especially in females and western representatives. The wings reach a length of 33 to 42 mm. The pale yellow abdomen with wide black stripes is only slightly depressed and tapers backwards. Like the thorax, the abdomen turns an ash-blue shade with age. The legs are black.
Flight times
The flight times are from mid-April to the end of November.
Scientific names
Burmeister made the first description in 1839 using a male from Pennsylvania under the name Libelula luctuosa . This holotype is in the Sommer's Collection . In the same year Thomas Say published the following description of the animal:
L. basalis Wings fuscous on behalf of the basal half. Inhabits US ♂ Body brownish-black; head immaculate, dark bluish; wings dark fuliginous opaque, on the basal half, beyond which is a broad, milk-white, almost opaque, band; stigma blackish; abdomen somewhat depressed, of equal diameter nearly to the tip dusky, with a lateral dull yellowish vitta; beneath black-brown. Length nearly two inches.
In 1861, Hagen presented a description of a male from Texas under the name Libellula odiosa . Muttowski recognized the synonymity in 1910 .
Protection status
Libellula luctuosa has protection status G5 worldwide , which means that it is classified as a very widespread and non-endangered species that occurs in large numbers. It received this status on December 30, 1985. In the USA and Canada it has the nationally equivalent protection status N5. Protection status has also been granted at the level of many states in the USA and Canada. These are shown in the graphic on the right.
Web links
- Libellula luctuosa inthe IUCN 2013 Red List of Threatened Species . Listed by: Paulson, DR, 2007. Retrieved February 22, 2014.
credentials
- ↑ a b Dragonfly Society of the Americas ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. , in English, accessed April 9, 2006
- ↑ Thomas Say : Description of the North American Neuropterous Insects, and Observations on some already described . In: Journal of the Academy of Natural Sciences . 8, 1839, p. 23.
- ^ Henrik Steinmann - World Catalog of Odonata (Volume II Anisoptera) [p. 394], de Gruyter, 1997, ISBN 3-110-14934-6
- ↑ NatureServe (ed.): NatureServe Explorer: An online encyclopedia of life. February 2006, accessed March 25, 2006 .
