Trichosiopsis zanti
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BibTeX: @article{Heller2012VeröffentlichungendesMuseumsfürNaturkundeChemnitz35, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Heller2012Veröffentlichungen des Museums für Naturkunde Chemnitz35">{{Citation |
Ordo: Diptera
Familia: Sciaridae
Genus: Trichosiopsis
Name
Trichosiopsis zanti (Heller, 2012) – Wikispecies link – ZooBank link
- Leptosciarella (Leptosciarella) zanti Heller, 2012[1]: 93-95, fig. 1
Type material
Holotype ♂, no 2268 in SDEI, leg. Menzel, 19.06.2000
Type locality
Germany, Schleswig-Holstein, Langenhorner Heide, Ochsenweg, mixed forest with spruce and larch
Paratypes
Germany: 1 ♂, Schleswig-Holstein, Meggerdorf, Feuchtbrache, photoeclector, Heller, 14.5.-01.06.1994, PKHH 745 [as Leptosciarella pilosa (Heller 2004[2]: 242)]; 1 ♂, Wulfshagen, Buchen-Eichen-Fichten-Mischwald, Kescherfang, Menzel, 16.06.2000, SDEI 2267; 1 ♂, Thuringia, NSG Apfelstädter Ried, Kohldistelwiese, Gelbschale, Weipert, 30.8.-13.09.1985, SDEI 2266 [as Trichosia (Leptosciarella) scutellata (Menzel & Mohrig 1991[3]: 38) and Leptosciarella pilosa (Mohrig & Menzel 1997[4]: 72)]; 1 ♂, Czech Republic, Bohemia, Sumava, Mala Niva, Emergenzfalle, Barták, 06.-07.1998, SDEI 2264; 1 ♂, Bilina, Chloumek: Hügelspitze, Steppe umrandet mit Eichenwald; ehemals Reservat "Kajba", Malaisefalle, Barták, 28.5.-15.06.1998, SDEI 2265 [as Leptosciarella pilosa (Menzel et al. 2000[5]: 77)].
Further material studied
Greece: 2 ♂, Monodendri, dry grassland, yellow pan trap, Röschmann, 05.-07.05.1993, PWMP 1651 [as Leptosciarella brevipalpa in Röschmann & Mohrig (1996[6]: 302)] and 1737 [as Leptosciarella pilosa in Röschmann & Mohrig (1996[6]: 302)]; Italy: 2 ♂, Entraque, northern slope with beech, chestnut and rowan, sweep netting, Röschmann, 31.05.1992, PWMP 1745/1746; Japan: Kyushu, Fukuoka-shi, Yukawa, 13.04.1965, PWMP 1749 [as Trichosia scutellata in Mohrig et al. (1992[7]: 31); Kyrgyzstan: 1 ♂, lake Sary-Chelek, Chernayakhovsky, 23.05.1965, PWMP 4011 [as Leptosciarella rejecta in Mohrig & Menzel (1997[4]: 64)].
Description (male)
Head. Eye bridge 4–5 rows of facets. LW-index of 4th antennal flagellar segment 1.9–2.1; neck 0.2–0.25 of segment width; Transition of basal part to neck pronounced. Colour of neck unicolour. Antennal hairs shorter than segment width; dense; salient. Palps darkened; long; palpomeres 3. First palpomere elongate; with 5–8 bristles; with only some sparse sensillae. Second palpomere elongate. Third palpomere as long as first segment, or longer than first segment. Thorax. Colour brown. Notum unicolorous. Thoracic setae long and strong; darkened. Mesonotum with some weaker central bristles. Posterior pronotum setose. Postpronotal setae 6–10; fine. Laterotergite bare. Legs. Colour yellow, or yellow-brown. Hind coxae darkened. Hairs on fore coxae bright. Front tibia apically with a patch of setae. Front tibial organ bright. Front tibial organ not bordered. Tibial setae on hind legs weak, inconspicuous, or normal, shorter than tibial width, or very strong, as long or longer longer than tibial width. Tibial spurs of equal length. Claws untoothed. Wings. Wings hyaline; of normal shape. Wing membrane without macrotrichia. Wing venation weak, with faint m-base. M-fork of normal shape. R1 inserting at or slightly before base of m-fork; posterior veins with macrotrichia; stM mainly with macrotrichia; cuA1 and cuA2 mainly with macrotrichia; bM bare, or setose; r-m mostly setose; bM:r-M 1–1.3; st-Cu:bM 0.35–0.5; r1:r 1.3–1.5; C:w 0.6–0.7. Halteres dark; of normal length. Abdomen. Abdominal setae strong and dense; dorsally dark; ventrally of different colour, or white. Hypopygium concolour with abdomen; 0.55–0.75 × longer than wide. Base of gonocoxites with normal, weak hairs; gonocoxites narrowly separated; inner margin of gonocoxites normally U-shaped; inner part of hypopygium scarcely setose; elongated setae on valves of hypopygium absent. Gonostylus elongate; 2.9–3.1 × longer than wide; Inner margin concave; apex equally rounded. Apical tooth present; 1.4–1.7 × longer than broad; normal. Awl-like setae normal; on inner side of gonostyles present apically. Megasetae on inner part of gonostylus absent. Whiplash-hair absent. Tegmen 0.52–0.7 × longer than broad; rectangular with rounded edges; normal; Central process absent. Length of aedeagus/hypopygium 28–40 %; Aeadeagal apical structure present. Measurements. Body size 3.5–4.5 mm. Hind tibia 1.4–1.55 mm.
Diagnosis
Trichosiopsis zanti was not separated from Trichosiopsis pilosa in the latest revision of the genus (Mohrig & Menzel 1997[4]; 72). Both species are very similar in the structure of the male genitalia. In Tr. zanti the gonostyli are apically slightly more rounded. The round shape even continues to the inner part below the apical tooth. In contrast Tr. pilosa has a very slight angle on the outer part over the apical tooth. In Tr. zanti the aedeagus has an apical structure, whereas it is more or less straight in Tr. pilosa. Moreover, Tr. zanti is smaller, has shorter antennal segments and more hairs on the posterior pronotum. Tr. pilosa has long black bristles in the fore coxae, while they are fine and bright in Tr. zanti. The distinction from Trichosiopsis subspinulosa, which was also considered to be identical to Tr. pilosa (Mohrig & Menzel 1997[4]; 72) is possible by the shape of the gonostyli, the aedeagal apical structure and the darkened hind coxae.
DNA Barcoding
The COI sequence is assigned to BIN BOLD:ACV1655 (average distance 0.08%, max. 0.15%, n=4, K2P: 8.7%).
Etymology
The species was named after Kai Heller´s colleague, Björn (“Zanti”) Zantopp.
Ecology
In contrast to most species of the genus, Tr. zanti is apparently not exclusively restricted to forests. The specimens from wetland ecosystems in Germany (Meggerdorf and Apfelstädter Ried) were captured by means of photoeclectors and yellow pan traps, which indicates a development in the same habitat. Furthermore the Nature Reserve “Langenhorner Heide” is also open habitat, but with dry aspect.
Discussion
Although the species was compared much with Tr. pilosa there are many similarities with Trichosiopsis trochanterata and allied species. The spines on the hind tibiae are stronger than usual and the aedeagus is also similar by the apical wing-like structure. The difference to Tr. trochanterata mainly consist in completely dark abdominal hairs and the broader shape of the gonostyli. But as also the DNA-barcode indicates a closer relationship with Tr. trochanterata, it is included in the trochanterata complex.
The paratypes of this species from Phineland-Palatinate have been misidentified. In fact they belong to another, later discovered species Trichosiopsis kathrinae. For differences see under the latter.
Distribution
Czech Republic[1], Germany[1], Greece, Italy, Japan, Kyrgyzstan.
Images
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References
- ↑ 1.0 1.1 1.2 Heller, K. 2012: Fünf neue europäische Arten von Trauermücken (Diptera, Sciaridae) aus dem Artenkreis um Leptosciarella pilosa. Veröffentlichungen des Museums für Naturkunde Chemnitz, 35, 91–102.
- ↑ Heller, K. 2004: Eine Bestandsaufnahme der Sciaridae (Diptera) Schleswig-Holsteins mit Ergänzungen und Korrekturen zum bisher bekannten Arteninventar. Faunistisch-Ökologische Mitteilungen, 8, 233–257.
- ↑ Menzel, F.; Mohrig, W. 1991: Beiträge zur Faunistik und Ökologie des Naturschutzgebietes “Apfelstädter Ried”, Kreis Erfurt-Land. Teil VI - Diptera: Sciaridae. Veröffentlichungen des Naturkundemuseums Erfurt, 10, 27-45.
- ↑ 4.0 4.1 4.2 4.3 Mohrig, W.; Menzel, F. 1997: Revision der paläarktischen Arten von Trichosia Winnertz sensu Tuomikoski, 1960 (Diptera, Sciaridae). – Teil II. Gattungen Leptosciarella Tuomikoski, 1960 und Trichodapus gen. nov. Studia dipterologica, 4(1), 41–98.
- ↑ Menzel, F.; Mohrig, W.; Barták, J. 2000: Sciaridae. In: J. Vanhara & M. Barták (Eds.), Diptera in an industrially affected region (North-Western Bohemia, Bilina and Duchcov Environs), I, Folia Facultatis Scientiarum Naturalium Universitatis Masarykianae Brunensis (104). pp. 73-81.
- ↑ 6.0 6.1 Röschmann, F.; Mohrig, W. 1996: Neue Trauermücken aus Griechenland. Berichte des Naturwissenschaftlich-medizinischen Vereins Innsbruck, 83, 291–309.
- ↑ Mohrig, W.; Menzel, F.; Kozánek, M. 1992: Neue Trauermücken (Diptera, Sciaridae) aus Nord-Korea und Japan. Dipterological Research, 3, 17–32.
