Trichosiopsis scutellata lenae

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Taxonavigation

Ordo: Diptera
Familia: Sciaridae
Genus: Trichosiopsis
Species: Trichosiopsis scutellata

Name

Trichosiopsis scutellata lenae  unpublished

Type material

Holotype male, 12.7.–26.7.2015, Malaise trap, leg Kjærandsen, TSZD-JKJ-103848 in TSZD

Type locality

Norway, Troms, Tromsø, Skjelhollet, Kvaloy

Barcoded material studied

Stadium Country Province Locality Habitat Method Date Collector Collection Number Collection Latitude Longitude Elevation (m)
1 ♂ (holotype) Norway Troms Tromsø, Skjelhollet, Kvaloy Malaise trap 12.7.–26.7.2015 Jostein Kjærandsen TSZD-JKJ-103848 TSZD 69.768 18.851
1 ♂ Norway Hordaland Sveio, Langemyr SE of Sveio Mixed forest (scots pine, Norway spruce, downy birch, common hazel, juniper) with ferns and mosses. Sweep netting 17.08.2015 Kjell-Magne Olsen bf-sci-01198 NHMO 59.505 5.283 15
1 ♂ Norway Hordaland Stord, Hageberg SV SE of Vistvik, NE coast of Stord Sweep netting 18.08.2015 Oivind Gammelmo bf-sci-01188 NHMO 59.942 5.429 50
1 ♀ Norway More og Romsdal Aukra, Hollingsholmen SW of Jendem Coniferous forest (scots pine, mosses) with a flower rich glade (musk thistle, wood sorrel, grasses). Sweep netting 22.08.2015 Oivind Gammelmo bf-sci-01158 NHMO 62.777 6.972 10
1 ♂ Norway Hordaland Stord, Hageberg SV SE of Vistvik, NE coast of Stord Sweep netting 18.08.2015 Kai Heller bf-sci-00916 NHMO 59.942 5.429 50
1 ♂ Norway Hordaland Stord, Hageberg SV SE of Vistvik, NE coast of Stord Sweep netting 18.08.2015 Kai Heller bf-sci-00915 NHMO 59.942 5.429 50
1 ♂ Norway Hordaland Stord, Gangsto N of Fitjar, island Stord Mixed forest (scots pine, Norway spruce, rowan, downy birch), over the dense moss cover and grasses. Sweep netting 17.08.2015 Kai Heller bf-sci-00905 NHMO 59.953 5.326 20
1 ♂ Norway Oslo Oslo Nyrestaurert slætteng. Malaise trap 29.06.2014 Kjell-Magne Olsen bf-sci-00703 NHMO 59.948 10.712 110
1 ♀ Norway Akershus Ullensaker sandtak Malaise trap 06.08.2014 Kjell-Magne Olsen bf-sci-00528 NHMO 60.244 11.157 185
1 ♂ Norway Telemark Tinn, Ovre Gunleiksrud Land, slatteng. Malaise trap 01.07.2012 S. Reiso bf-sci-00053 NHMO 60.1371 8.65018 815
1 ♂ Sweden Lappland Jokkmokk, Vuollerim backyard Malaise trap 2.7.–1.8.2016 Mathias Jaschhof ZFMK-TIS-2583334 ZFMK 66.43 20.6244
1 ♂ Norway Sor-Trondelag Trondheim, v/ Elvegata 17 Malaise trap 19.06.2014 Elisabeth Stur TRD-Sci081 NTNU 63.429 10.379 2

Description (male)

Head. Eye bridge 4 rows of facets. Antenna unicolour. LW-index of 4th flagellomere 2.1–2.4; neck 0.4–0.5 × segment width; transition of basal part to neck pronounced. Colour of neck unicolour. Antennal setae shorter than segment width; of normal strength; dense; salient. Palpus darkened; of normal length; palpomeres 3. First palpomere of normal shape, or elongate; with 5–7 setae; with only sparse sensilla. Second palpomere short and oval. Third palpomere as long as first. Thorax. Colour brown, or reddish. Notum unicolour. Thoracic setae long and strong; black. Posterior pronotum setose. Postpronotal setae 2–5; strong. Mesothoracic sclerites bare. Legs. Colour yellow. Hind coxa of same colour as femora. Setae on front coxa black. Front tibial organ as patch of setae; front tibial organ not bordered. Tibial setae on hind legs normal, shorter than tibial width. Tibial spurs of equal length. Claws untoothed. Wing. Wing slightly darkened; of normal shape. Wing membrane without macrotrichia. Wing venation weak, with faint stM. M-fork of normal shape. R1 ending at or slightly before base of m-fork; posterior veins with macrotrichia; stM mostly with macrotrichia; CuA1 and CuA2 mostly with macrotrichia; bM bare; r-m mostly setose; bM:r-M 0.75–0.9; st-Cu:bM 0.25–0.4; R1:R 1.35–1.55; c:w 0.63–0.72. Halter darkened; of normal length. Abdomen. Abdominal setae strong; dense; on tergites black; on sternites black. Hypopygium concolour with abdomen; LW-index 0.61–0.71. Base of gonocoxites with strong setae; gonocoxites broadly separated; inner margin of gonocoxites typically U-shaped; inner membrane of hypopygium scarcely setose; ventral margin of gonocoxite with short setae. Gonostylus elongate; LW-index 1.9–2.15; Inner margin straight; apex nearly rectangular. Apical tooth present; without internal structure; of medium strength; LW-Index 2.5–3. Awl-like setae normal; present beneath apical tooth. Megasetae absent. Whiplash-hair absent. Tegmen 0.45–0.6 × longer than broad; rectangular with rounded edges; without special features; central process absent. Length of ejaculatory apodeme/hypopygium 16–26 %; base of ejaculatory apodeme present. Field with aedeagal teeth inconspicuous. Measurements. Body size 2.9–3.5 mm. Hind tibia 1.31–1.51 mm. Wing length 2.8–3.5 mm.

Diagnosis

The subspecies is based on its unique COI sequence. Tr. scutellata lenae has a mesially slightly convex gonostylus, which is a little bit more elongate than in the nominate subspecies. The apical tooth of the gonostylus is longer than in the other subspecies.

DNA Barcoding

The COI sequence is assigned to BIN BOLD:ACM6672 (average distance 0.05%, max. 0.17%, n=12, K2P: 6.42%).

Etymology

The subspecies is named after Lena Schäpe, sister of Thea Schäpe.

Discussion

Trichosiopsis scutellata lenae has a quite high K2P and might be considered a distinct species in the future. Already Mohrig & Menzel (1997[1]: 60) noticed a tinier gonostylus in Nordic specimens and hereby probably referred to this subspecies, which has an exclusively Northern distribution.

Distribution

Norway, Sweden.

Images

Figure 1. Trichosiopsis scutellata lenae male (holotype), habitus, scale 1.0 mm
Figure 1. Trichosiopsis scutellata lenae male (holotype), habitus, scale 1.0 mm 
Figure 2. Trichosiopsis scutellata lenae male (holotype), hypopygium, scale 0.1 mm
Figure 2. Trichosiopsis scutellata lenae male (holotype), hypopygium, scale 0.1 mm 
Figure 3. Trichosiopsis scutellata lenae male (holotype), gonostylus (ventral view), scale 0.1 mm
Figure 3. Trichosiopsis scutellata lenae male (holotype), gonostylus (ventral view), scale 0.1 mm 
Figure 4. Trichosiopsis scutellata lenae male (holotype), aedeagal complex, scale 0.1 mm
Figure 4. Trichosiopsis scutellata lenae male (holotype), aedeagal complex, scale 0.1 mm 
Figure 5. Trichosiopsis scutellata lenae male (holotype), 4th antennal flagellar segment, scale 0.1 mm
Figure 5. Trichosiopsis scutellata lenae male (holotype), 4th antennal flagellar segment, scale 0.1 mm 
Figure 6. Trichosiopsis scutellata lenae male (holotype), palpus, scale 0.1 mm
Figure 6. Trichosiopsis scutellata lenae male (holotype), palpus, scale 0.1 mm 
Figure 7. Trichosiopsis scutellata lenae male (holotype), wing, scale 1.0 mm
Figure 7. Trichosiopsis scutellata lenae male (holotype), wing, scale 1.0 mm 

References

  1. ↑ 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.
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