| 词条 | Aciagrion approximans |
| 释义 |
| name = Aciagrion approximans | image = Aciagrion approximans by Karen Conniff.jpg | image_caption = A. a. approximans | image2 = Aciagrion approximans krishna male (14).jpg | image2_caption = A. a. krishna | status = LC| status_system = IUCN3.1 | status_ref = [1] | taxon = Aciagrion approximans | authority = (Selys, 1876) | synonyms =
}}Aciagrion approximans,[2] Indian violet dartlet,[3] is a species of damselfly in the family Coenagrionidae. It is found in east[1][5] and south[6][3][5] of India. The range extends to Thailand, China and Cambodia.[5][3][4][5] SubspeciesFraser considered the specimen found in northeast as Aciagrion approximans and in south as Aciargion hisopa race krishna.[6][3] A recent study revealed that the subspecies krishna found in south is not conspecific with A. hisopa and found to be very close to A. approximans found in northeast; but differing at the level of subspecies.[5][4]
Description and habitatIt is a small, slim, slender damselfly with violet and black colors. Its thorax is black with lateral violet stripes. Segments 2 to 7 of the abdomen are black on dorsum and violet in the ventral half. Segments 8 and 9 are violet without any marks. Segment 10 is black on dorsum. The lower half of segment 8 is marked with black in A. a. krishna. Female is similar to the male; but paler in colors. Segments 8 and 9 are black and 10 is blue on dorsum.[3][5] It breeds in ponds, lakes or in slow moving streams.[3][5] See also
References1. ^1 {{cite journal | author =Sharma, G. | title = Aciagrion approximans | journal = IUCN Red List of Threatened Species | volume= 2010| page = e.T167347A6332229| publisher = IUCN | year = 2010| url=http://www.iucnredlist.org/details/full/167347/0| doi=10.2305/IUCN.UK.2010-4.RLTS.T167347A6332229.en | accessdate = 25 February 2017 }} 2. ^{{World Odonata List}} 3. ^1 2 3 4 {{cite book|author=C FC Lt. Fraser|author-link=Frederic Charles Fraser|title=The Fauna of British India, including Ceylon and Burma, Odonata Vol. I|publisher=Taylor and Francis|location=Red Lion Court, Fleet Street, London|year=1933|pages=340–342|url=https://archive.org/details/FraserOdonata1/page/n353}} 4. ^1 2 3 4 {{cite web|url=http://www.indianodonata.org/sp/339/Aciagrion-approximans|title=Aciagrion approximans Selys, 1876 – Indian Violet Dartlet|publisher=Odonata of India, v. 1.00. Indian Foundation for Butterflies|accessdate=2017-02-25}} 5. ^1 2 3 4 5 6 {{cite journal | author =Shantanu Shrikant Joshi | author2 =Oleg Kosterin | author3 =Krushnamegh Kunte | title = New status for Fraser’s forgotten Aciagrion approximans krishna, stat. nov. (Odonata: Zygoptera: Coenagrionidae) from theWestern Ghats of India | journal = International Journal of Odonatology | volume= 19 | issue= 1–2| pages = 41–51| publisher = researchgate | year = 2016| url=https://www.researchgate.net/publication/305331875_New_status_for_Fraser's_forgotten_Aciagrion_approximans_krishna_stat_nov_Odonata_Zygoptera_Coenagrionidae_from_theWestern_Ghats_of_India| doi=10.1080/13887890.2016.1166463 | accessdate = 25 February 2017 }} 6. ^{{cite journal |last1=Fraser |first1=F C|author-link=Frederic Charles Fraser |title=A list of dragonflies from Mahabaleshwar |journal=The Journal of the Bombay Natural History Society |date=1921 |volume=27 |page=543 |url=https://www.biodiversitylibrary.org/page/30359183#page/615/mode/1up}} 7. ^{{cite book |last1=K.A. |first1=Subramanian |last2=K.G. |first2=Emiliyamma |last3=R. |first3=Babu |last4=C. |first4=Radhakrishnan |last5=S.S. |first5=Talmale |title=Atlas of Odonata (Insecta) of the Western Ghats, India |date=2018 |publisher=Zoological Survey of India |isbn=9788181714954|pages=130–131}} External links{{wikispecies-inline|Aciagrion approximans}}{{commonscat-inline}}{{Taxonbar|from=Q2150053}}{{damselfly-stub}} 3 : Coenagrionidae|Insects of India|Insects described in 1876 |
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