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Dythemis nigra - Blue-eyed Setwing (Martin, 1897) Odonata: Epipocrita (= Epiprocotphora): Anisoptera: Libelluloidea: Libellulidae: Trithemistinae<br />
<br />
Location: Brazil, Cear&aacute;, Fortaleza <br />
Date: 20th of May, 2018 at 11:25:02pm<br />
Sex: ♂<br />
Wingspan: ~40mm+<br />
<br />
Full post here:<br />
<figure class="photo"><a href="https://www.jungledragon.com/image/64866/dythemis_nigra_-_blue-eyed_setwing_martin_1897.html" title="Dythemis nigra - Blue-eyed Setwing (Martin, 1897)"><img src="https://s3.amazonaws.com/media.jungledragon.com/images/3305/64866_thumb.jpg?AWSAccessKeyId=05GMT0V3GWVNE7GGM1R2&Expires=1542240010&Signature=89AXHLhRKSBvaQs1xdSNcAodxks%3D" width="200" height="114" alt="Dythemis nigra - Blue-eyed Setwing (Martin, 1897) Odonata: Epipocrita (= Epiprocotphora): Anisoptera: Libelluloidea: Libellulidae: Trithemistinae<br />
<br />
Hour: 20th of May, 2018 at 11:24:54am.<br />
Wingspan: ~40mm+<br />
Sex: ♂<br />
Location: Brazil, Cear&aacute;, Fortaleza, Trilha do Parque do Coc&oacute; (Lat: -3.75, Long: -38.48)<br />
<br />
Another picture:<br />
https://www.jungledragon.com/image/64867/dythemis_nigra_-_blue-eyed_setwing_martin_1897.html<br />
<br />
Dythemis nigra is a dragonfly in the order Odonata, suborder Epipocrita, infraorder Anisoptera, superfamily Libelluloidea, family Libellulidae and subfamily Trithemistinae. As can be seen at the tip of the abdomen, this dragonfly possess cerci, which means it is a male. First abdominal segment (proximal to the thorax) rounded and short; second abdominal segment rounded and longer than the first; third abdominal segment less rounded than the previous segments but longer than them; fourth abdominal segment cylindrical, longer than all previous segments and shorter than all posterior segments excdept for segments 10 and 11; fifth, sixth and seventh segments cylindrical and are, more or less, of the same size. They are the longest segments of them all; eighth segment shorter than the fifth, sixth and seventh but longer than all others and is cylindrical; nineth segment rounded and longer than the 10th and 11th segment, as well as the first three segments; tenth segment very short and rounded, but longer than the 11th segment; eleventh segment is the smallest of them all and is where the cerci are located. Third abdominal segment with two vertical whiteish stripes side by side dorsally. Fifth, sixth and seventh with three lateral whiteish, irregularly rounded spots that are specifically shaped to each segment. Eighth segment has two large whiteish markings dorsally. Dorsal view of the thorax is blue. Mesepisternum, prothorax and mesepimeron are dark-blue with many greenish-colored stripes irregularly scattered. Lateral ocelli apparently present in a lighter coloring. Legs are five-segmented and spiked: coxa, trochanter (subdivided into two segments), femur, tibia and tarsus. &quot;The legs of the Odonata, the dragonflies and damselflies, are adapted for seizing prey that the insects feed on while flying or while sitting still on a plant; they are nearly incapable of using them for walking&quot; - (https://en.wikipedia.org/wiki/Arthropod_leg). The eyes are very large, cyan / greenish-blue and compound. Wingspan of approximately 40mm, but requires confirmation, inclining to more. Females possess a more robust abdomen. <br />
<br />
According to EcoRegistros, they can be found in Brazil, Argentina and in the Lesser Antilles: http://www.ecoregistros.org/folha/Dythemis-nigra<br />
<br />
According to Wikipedia, there are 7 species of Dythemis; as of 2011, it was proposed that D. multipunctata be made a subspecies of D. sterilis:<br />
<br />
Dythemis fugax (Hagen, 1861) - Checkered Setwing<br />
Dythemis maya (Calvert, 1906) - Mayan Setwing<br />
Dythemis nigra (Martin, 1897) - Blue-eyed Setwing<br />
Dythemis nigrescens (Calvert, 1899) - Black Setwing<br />
Dythemis rufinervis (Burmeister, 1839)<br />
Dythemis sterilis (Hagen, 1861) - Brown Setwing<br />
Dythemis velox (Hagen, 1861) - Swift Setwing<br />
<br />
https://en.wikipedia.org/wiki/Dythemis<br />
<br />
However, there is a description on a new species of Dythemis from Trinidad: Dythemis broadwayi.<br />
<br />
https://archive.org/stream/entomologicalnew05acaduoft/entomologicalnew05acaduoft_djvu.txt<br />
<br />
Argyrothemis sp., Dythemis sp., Elga sp., Micrathyria sp. and Nephepeltia sp. are genera which possess whiteish spots on the dorsal part of the abdomen. On each one of these genera, the markings on the eighth segment are more extense. Micrathyria is, among these, the most numerous genus with 46 species registered: <br />
<br />
https://species.wikimedia.org/wiki/Micrathyria?uselang=vi<br />
<br />
Elasmothemis can be separated from both Brechmorhoga and Dythemis by the development of the ventral carina in segments 4 and 5.<br />
<br />
The larvae of Dythemis present lateral spines on segments 8-9.<br />
<br />
https://books.google.com.br/books?id=U1umyOqyHz4C&amp;pg=PA351&amp;lpg=PA351&amp;dq=dythemis+nigra&amp;source=bl&amp;ots=OoabTd2IA-&amp;sig=cUOG92FWZ7xfjpgfVCH3CmZubpg&amp;hl=pt-BR&amp;sa=X&amp;ved=2ahUKEwi0w9z75OXcAhWEipAKHTgsBj44ChDoATAGegQIAxAB#v=onepage&amp;q=dythemis nigra&amp;f=false<br />
<br />
The larvae of Dythemis, as commonly known in Odonata, are aquatic predators of small insects. Adults are aerial predators of medium-sized or small-sized insects.<br />
<br />
According to this article in Wikipedia, the main characteristic of Trithemistinae that differs it from other subfamilies is the change in the nodus which goes towards the tip of the wings, significantly reducing their apical areas. Undoubtedly, there are more differences unknown to me:<br />
<br />
https://de.wikipedia.org/wiki/Trithemistinae<br />
<br />
Further information such as how long the egg-adult process takes, anatomy, mating behaviour, etc., will be appreciated and credited.<br />
<br />
http://eol.org/pages/30681468/overview Animalia,Anisoptera,Arthropoda,Brazil,Dythemis,Dythemis nigra,Dythemis nigrescens,Epipocrita,Epiproctophora,Fall,Geotagged,Insecta,Insects,Libellulidae,Libelluloidea,Odonata,South America,Trithemistinae,animal,animals" /></a></figure> Animalia,Anisoptera,Arthropoda,Brazil,Dythemis,Dythemis nigra,Dythemis nigrescens,Epipocrita,Epiproctophora,Fall,Geotagged,Insecta,Insects,Libellulidae,Libelluloidea,Odonata,South America,Trithemistinae,animals Click/tap to enlarge Promoted

Dythemis nigra - Blue-eyed Setwing (Martin, 1897)

Odonata: Epipocrita (= Epiprocotphora): Anisoptera: Libelluloidea: Libellulidae: Trithemistinae

Location: Brazil, Ceará, Fortaleza
Date: 20th of May, 2018 at 11:25:02pm
Sex: ♂
Wingspan: ~40mm+

Full post here:

Dythemis nigra - Blue-eyed Setwing (Martin, 1897) Odonata: Epipocrita (= Epiprocotphora): Anisoptera: Libelluloidea: Libellulidae: Trithemistinae<br />
<br />
Hour: 20th of May, 2018 at 11:24:54am.<br />
Wingspan: ~40mm+<br />
Sex: ♂<br />
Location: Brazil, Ceará, Fortaleza, Trilha do Parque do Cocó (Lat: -3.75, Long: -38.48)<br />
<br />
Another picture:<br />
https://www.jungledragon.com/image/64867/dythemis_nigra_-_blue-eyed_setwing_martin_1897.html<br />
<br />
Dythemis nigra is a dragonfly in the order Odonata, suborder Epipocrita, infraorder Anisoptera, superfamily Libelluloidea, family Libellulidae and subfamily Trithemistinae. As can be seen at the tip of the abdomen, this dragonfly possess cerci, which means it is a male. First abdominal segment (proximal to the thorax) rounded and short; second abdominal segment rounded and longer than the first; third abdominal segment less rounded than the previous segments but longer than them; fourth abdominal segment cylindrical, longer than all previous segments and shorter than all posterior segments excdept for segments 10 and 11; fifth, sixth and seventh segments cylindrical and are, more or less, of the same size. They are the longest segments of them all; eighth segment shorter than the fifth, sixth and seventh but longer than all others and is cylindrical; nineth segment rounded and longer than the 10th and 11th segment, as well as the first three segments; tenth segment very short and rounded, but longer than the 11th segment; eleventh segment is the smallest of them all and is where the cerci are located. Third abdominal segment with two vertical whiteish stripes side by side dorsally. Fifth, sixth and seventh with three lateral whiteish, irregularly rounded spots that are specifically shaped to each segment. Eighth segment has two large whiteish markings dorsally. Dorsal view of the thorax is blue. Mesepisternum, prothorax and mesepimeron are dark-blue with many greenish-colored stripes irregularly scattered. Lateral ocelli apparently present in a lighter coloring. Legs are five-segmented and spiked: coxa, trochanter (subdivided into two segments), femur, tibia and tarsus. "The legs of the Odonata, the dragonflies and damselflies, are adapted for seizing prey that the insects feed on while flying or while sitting still on a plant; they are nearly incapable of using them for walking" - (https://en.wikipedia.org/wiki/Arthropod_leg). The eyes are very large, cyan / greenish-blue and compound. Wingspan of approximately 40mm, but requires confirmation, inclining to more. Females possess a more robust abdomen. <br />
<br />
According to EcoRegistros, they can be found in Brazil, Argentina and in the Lesser Antilles: http://www.ecoregistros.org/folha/Dythemis-nigra<br />
<br />
According to Wikipedia, there are 7 species of Dythemis; as of 2011, it was proposed that D. multipunctata be made a subspecies of D. sterilis:<br />
<br />
Dythemis fugax (Hagen, 1861) - Checkered Setwing<br />
Dythemis maya (Calvert, 1906) - Mayan Setwing<br />
Dythemis nigra (Martin, 1897) - Blue-eyed Setwing<br />
Dythemis nigrescens (Calvert, 1899) - Black Setwing<br />
Dythemis rufinervis (Burmeister, 1839)<br />
Dythemis sterilis (Hagen, 1861) - Brown Setwing<br />
Dythemis velox (Hagen, 1861) - Swift Setwing<br />
<br />
https://en.wikipedia.org/wiki/Dythemis<br />
<br />
However, there is a description on a new species of Dythemis from Trinidad: Dythemis broadwayi.<br />
<br />
https://archive.org/stream/entomologicalnew05acaduoft/entomologicalnew05acaduoft_djvu.txt<br />
<br />
Argyrothemis sp., Dythemis sp., Elga sp., Micrathyria sp. and Nephepeltia sp. are genera which possess whiteish spots on the dorsal part of the abdomen. On each one of these genera, the markings on the eighth segment are more extense. Micrathyria is, among these, the most numerous genus with 46 species registered: <br />
<br />
https://species.wikimedia.org/wiki/Micrathyria?uselang=vi<br />
<br />
Elasmothemis can be separated from both Brechmorhoga and Dythemis by the development of the ventral carina in segments 4 and 5.<br />
<br />
The larvae of Dythemis present lateral spines on segments 8-9.<br />
<br />
https://books.google.com.br/books?id=U1umyOqyHz4C&pg=PA351&lpg=PA351&dq=dythemis+nigra&source=bl&ots=OoabTd2IA-&sig=cUOG92FWZ7xfjpgfVCH3CmZubpg&hl=pt-BR&sa=X&ved=2ahUKEwi0w9z75OXcAhWEipAKHTgsBj44ChDoATAGegQIAxAB#v=onepage&q=dythemis nigra&f=false<br />
<br />
The larvae of Dythemis, as commonly known in Odonata, are aquatic predators of small insects. Adults are aerial predators of medium-sized or small-sized insects.<br />
<br />
According to this article in Wikipedia, the main characteristic of Trithemistinae that differs it from other subfamilies is the change in the nodus which goes towards the tip of the wings, significantly reducing their apical areas. Undoubtedly, there are more differences unknown to me:<br />
<br />
https://de.wikipedia.org/wiki/Trithemistinae<br />
<br />
Further information such as how long the egg-adult process takes, anatomy, mating behaviour, etc., will be appreciated and credited.<br />
<br />
http://eol.org/pages/30681468/overview Animalia,Anisoptera,Arthropoda,Brazil,Dythemis,Dythemis nigra,Dythemis nigrescens,Epipocrita,Epiproctophora,Fall,Geotagged,Insecta,Insects,Libellulidae,Libelluloidea,Odonata,South America,Trithemistinae,animal,animals

    comments (5)

  1. Excellent work, Oscar! Posted 2 months ago
    1. Thank you so, so much! Always trying to bring the best out of a specimen based on all information available to me Posted 2 months ago
  2. Great shot! Posted 2 months ago
    1. You've been a great friend, thank you for the recognition of my work Posted 2 months ago
      1. Você é bem-vindo Oscar! Você é incrível! :) Posted 2 months ago

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''Dythemis nigrescens'', the black setwing, is a species of skimmer in the family of dragonflies known as Libellulidae. It is found in Central America and North America.

The IUCN conservation status of ''Dythemis nigrescens'' is "LC", least concern, with no immediate threat to the species' survival. The population is stable.

Similar species: Moths And Butterflies
Species identified by Oscar Neto
View Oscar Neto's profile

By Oscar Neto

All rights reserved
Uploaded Aug 12, 2018. Captured May 20, 2018 11:25 in Trilha do Cocó - Cocó, Fortaleza - CE, 60811-440, Brazil.
  • NIKON D7000
  • f/16.0
  • 1/250s
  • ISO100
  • 60mm