Neotrogla (lat.) Is a genus of cave hay beetles (family Prionoglarididae ), in which a change in the sexual roles of females and males has been detected (females play an active role). South America : Brazil . 4 types [1] .
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| Neotrogla Lienhard, 2010 |
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 | Neotrogla curvata hay mating: female on top. |
Content
Description
Representatives of this cave genus (their length is about 3 mm) showed a unique in nature change in the roles of females (in which the penis developed) and males (the penis is reduced) during mating. Females have a long penis-shaped process (its length reaches 15% of the total body length; it is called gynosome, gynosome ), and in males, instead of penises, the genitals are simplified to a tubular vagina (a strongly reduced phallosome instead of a penis). It is the female who “anchors” the male (introducing her gynosome into his body). The mating process lasts 40–70 hours. Presumably, females receive from their partners not only sperm with hereditary material for reproduction, but also nutrient seminal fluid important in the conditions of scarcity of food resources in dry Brazilian caves [2] [3] [4] . Although in some other animals, cases of partial change of sexual roles are known, where the female leads life either as a promiscuity sexual aggressor (for example, scorpion ), while others changed the anatomy, where the female penetrates male organs ( seahorses ), none developed a complete reversal sexual roles and anatomical changes, as in Hayot genus Neotrogla . This is the first in the wild real female penis (with developed muscles and hooks) [5] [6] .
The genus was first isolated in 2010 by Swiss entomologist Charles Lienhard ( Charles Lienhard ; Natural History Museum of the City of Geneva, Geneva , Switzerland ) [1] .
- Neotrogla aurora Lienhard, 2010
- Neotrogla brasiliensis Lienhard, 2010
- Neotrogla curvata Lienhard & Ferreira 2013 [7]
- Neotrogla truncata Lienhard, 2010
Notes
- ↑ 1 2 Lienhard, C .; Oliveira do Carmo, T .; Lopes Ferreira, R. 2010: A new genus of Sensitibillini from Brazilian caves (Psocodea: 'Psocoptera': Prionoglarididae). Revue suisse de zoologie, 117 (4): 611-635.
- ↑ Kazunori Yoshizawa, Rodrigo L. Ferreira, Yoshitaka Kamimura, Charles Lienhard. (2014). Female Penis, Male Vagina, and Their Correlated Evolution in a Cave Insect. Current Biology. Volume 24, Issue 9, p. 1006—1010, 5 May 2014
- ↑ Females and males of insects of the genus Neotrogla switched roles during mating.
- ↑ Susan Milius (April 17, 2014). Most extreme female penis is found on cave lice. sciencenews.org
- ↑ Mihai Andrei . Scientists discover the animal kingdom's first 'female penis' , ZME Science (April 17, 2014). Date of appeal April 25, 2014.
- ↑ Morgan, James . Females have penises in sex-reversed cave insects , BBC (April 18, 2014). Date of treatment April 18, 2014.
- ↑ Lienhard & Ferreira 2013. A new species of Neotrogla from Brazilian caves (Psocodea: 'Psocoptera': Prionoglarididae). Revue Suisse de Zoologie, 120 (1), Mars 2013: 3-12.
Literature
- Nuzzo, Regina. Female insect uses spiky penis to take charge (Eng.) // Nature . - 2014 .-- ISSN 1476-4687 . - DOI : 10.1038 / nature.2014.15064 . .
- Arturo Baz. (2008). Bark-Lice, Book-Lice or Psocids (Psocoptera). - pp. 381–399 (p. 391 - “Courtship and Mating”) // In: John L. Capinera (ed.). Encyclopedia of Entomology . - 2nd Edition. Springer Science - pp. 1-4346. ISBN 978-1-4020-6360-2
Links
- Encyclopedia of Life: Neotrogla. Eol.org