Orthetrum testaceum, common names Crimson Dropwing or Orange Skimmer. is an Asian freshwater dragonfly species belonging to the family Libellulidae.
| Orthetrum testaceum | |
|---|---|
_male_B.jpg)
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| male O. t. testaceum Sabah, Borneo | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Odonata |
| Infraorder: | Anisoptera |
| Family: | Libellulidae |
| Genus: | Orthetrum |
| Species: | O. testaceum
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| Binomial name | |
| Orthetrum testaceum (Burmeister, 1839)
| |
Subspecies
editSubspecies include:[1]
- Orthetrum testaceum soembanum Foerster, 1903
- Orthetrum testaceum testaceum (Burmeister, 1839)
Distribution and habitat
editThis common species is widespread throughout India, Indonesia, Malaysia, Philippines, Singapore and Thailand.[2] These dragonflies may occur in various areas with standing waters, as in ponds, drains, marshes, around rivers, streams, lakes, and gardens.[3][4]
Description
editOrthetrum testaceum can reach a body length of about 43–48 mm (1.7–1.9 in), with a hindwing of 34–38 mm (1.3–1.5 in) (in males). In these large dragonflies the thorax of adult males is orange-brown, with a vermilion red abdomen. The eyes are light brownish. The wings are smoky transparent, with an amber patch at the base. In adult females and in recently emerged males the body is olive-green to brown in colour with black markings and a clear base of the hindwings.
These dragonflies are rather similar to Orthetrum chrysis, but O. testaceum is more reddish, while O. chrysis has a reddish brown thorax.[3][5][6]
Biology and behavior
editThe males regularly perch near ponds, while the females usually fly to water only during mating season and egg-laying. In this case the males guard them by flying over them.[4]
See also
editReferences
edit
- ^ Catalogue of Life
- ^ Wilson, K.D.P. 2013. Orthetrum testaceum. The IUCN Red List of Threatened Species. Version 2015.2. www.iucnredlist.org. Downloaded on 03 July 2015.
- ^ a b The DNA of Singapore Lee Kong Chian Natural History Museum
- ^ a b Dragonfly on Stamps
- ^ Tang, H. B., L. K. Wang & M. Hämäläinen, 2010. A Photographic Guide to the Dragonflies of Singapore. Raffles Museum of Biodiversity Research, National University of Singapore, Singapore. 222 pp.
- ^ E. A. Heinrichs Biology and Management of Rice Insects
- Tol J. van - Odonata: Catalogue of the Odonata of the World.
External links
edit- World Odonata List – Slater Museum of Natural History University of Puget Sound, Tacoma, WA 98416, USA
- Dragonflies & Damselflies of Thailand
- Odonata of Peninsular Malaysia
- Orthetrum testaceum of Borneo Island
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