Ctenophora festiva

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Ctenophora festiva
Male of Ctenophora festiva

Male of Ctenophora festiva

Systematics
Class : Insects (Insecta)
Order : Fly (Diptera)
Subordination : Mosquitoes (Nematocera)
Family : Schnaken (Tipulidae)
Genre : Combed snake ( Ctenophora )
Type : Ctenophora festiva
Scientific name
Ctenophora festiva
( Meigen , 1804)
Fig. 2: Male, top view
female
Fig. 3: antennae: A: male B: female C: single antennae of the combed part of the antennae in the male with four appendages (rays)

Ctenophora festiva is a two-winged bird from the family of the Schnaken and the genus of the Combed Schnaken ( Ctenophora ). The genus is represented in Europe with three subgenus, Ctenophora festiva belongs to the subgenus Cnemoncosis , which is represented in Europe with three species.

The genus name Ctenophora (from ancient Greek κτείς, κτενός “ktēīs, ktenós” for “comb” and φωρῶς “phorós” for “carrying”) alludes to the male's combed antennae, which is also reflected in the German generic name “Kammschnake”. The species name festiva ( Latin ) means "cute"

Characteristics of the Schnake

The robust Schnake is predominantly black with yellow spots. The males are about twenty millimeters long, the females 23 to 25.

The noticeable protruding antennae are black-brown. They consist of thirteen members and are built differently in males and females. The first three members are the same in both sexes, the first cylindrical, the second spherical and the third elongated. From the fourth onwards, the limbs in the female are ovoid to spherical (Fig. 3B). In the male (Fig. 3A), each following limb has four appendages that are longer than the antennae themselves. Two longer ones are basal symmetrically spread out laterally, two shorter ones lie in front of it and slightly lower (generic feature, Fig. 3C).

The protruding and slightly inwardly curved buttons are four-limbed, the first three limbs stretched and hairy with bristles, the last limb is much longer and finer with hair.

The short trunk points forward, the lip is fleshy and extended and divided in front and hairy at the tip.

The round compound eyes are far apart, point eyes are missing.

The shiny egg-round breast section is raised at the front in a bulging manner. A V-shaped, clear transverse seam that is open to the front runs across the black back, from which a longitudinal seam branches off to the label (Fig. 2). On the side in front of and behind the deflection of the wings there is a yellow spot. The sides of the chest section are long hairy.

The shiny wings are lanceolate. They are transparent, clouded a little brown, only in front of the tip they wear a dark half-band. It is rounded, wider at the wing leading edge, but it does not reach the wing tip. The wings are carried open at rest and leave the large yellowish-brown swinging bulbs ( holders ) uncovered. There is a narrow yellow crossbar behind the brackets.

The legs are rusty yellow. The basal splint of the hind leg has a blackish wide ring, but the base is not completely blackened. The thigh of the hind legs also has a black ring. The rails are provided with end spikes.

The abdomen consists of eight visible rings. In the male it is cylindrical and ends in a bulbous anus, in the female it is spindle-shaped and ends in two anal tips. The yellow markings on the black abdomen are slightly different in females and males, but both have a striking, wide, continuous cross band on the third segment and a cross band divided in the middle on the fourth segment of the abdomen; all other yellow spots are significantly smaller.

Characteristics of the larva

The larvae are dirty white, cylindrical and footless. They live in rotting tree trunks.

biology

Within Hungary, Ctenophora festiva was assigned to the habitat “in the bushes along the water” when it was divided into four habitat types.

distribution

The occurrence of the species is limited to the Balkan Peninsula, Central and Western Europe. Within the distribution type European lowlands and Balkan peninsula , they belong to the group that is distributed more to the west. Overall, there are reports of finds from in the west between the Netherlands and northern Spain to the east between Lithuania and Greece . There is a new find from Portugal. According to one source, the species is also common in the Middle East.

literature

  • Johann Wilhelm Meigen: Systematic description of the well-known European two-winged insects Stolberg, Aachen 1818 at BHL

Individual evidence

  1. a b c Ctenophora festiva at Fauna Europaea. Retrieved January 4, 2013
  2. Ctenophora at Fauna Europaea. Retrieved January 28, 2013
  3. Cnemoncosis (subgenus) in Fauna Europaea. Retrieved January 28, 2013
  4. Sigmund Schenkling: Explanation of the scientific beetle names (species)
  5. L. Ujvárosi, T. Póti: Studies on the community structure of the Tipuloidea (Insecta, Diptera) assamblages of the Dupla Lunga Marsh, Eastern Carpatians Acta Biol. Debr. Oecol. Hung 14: 253–262, 2006 as PDF ( memento of the original from January 1, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / mavige.freeweb.hu
  6. P. Oosterbroek, R. Bygebjerg, T. Munk: The West Palaearctic species of Ctenophorinae (Diptera: Tipulidae): key, distribution and references Entomological reports 66 (5) 138-149 as PDF ( Memento of the original from April 24, 2013 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.nev.nl
  7. Br. Theo Forest P, Oosterbroek: To zoogeography of Western Palaearctic tipulids III. The Tipulidae of the European lowlands (Diptera, Tipulidae) Bonn.zool.Beitr. 34, 1983, issue 1–3 as PDF ( memento of the original from March 1, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / nlbif.eti.uva.nl
  8. JM Grosso-Silva, P. Soares-Vieira: Nota / Note The genus Ctenophora Meigen new to Portugal, with records of two species: C.festiva and C.ornata Arquivos Entomolóxicos, 5: 67–68 2011 available on the journal's website

Web links

Commons : Ctenophora festiva  - album with pictures, videos and audio files