Difference between revisions of "Gabyella inae"
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|11= File:Leptosciarella opaca Hypopygium KH1716.jpg|12= '''Figure 6.''' ''Gabyella inae'' male (Ontario), hypopygium, scale 0.1 mm | |11= File:Leptosciarella opaca Hypopygium KH1716.jpg|12= '''Figure 6.''' ''Gabyella inae'' male (Ontario), hypopygium, scale 0.1 mm | ||
|13= File:Leptosciarella opaca Gonostylus KH1716.jpg|14= '''Figure 7.''' ''Gabyella inae'' male (Ontario), gonostylus, scale 0.1 mm | |13= File:Leptosciarella opaca Gonostylus KH1716.jpg|14= '''Figure 7.''' ''Gabyella inae'' male (Ontario), gonostylus, scale 0.1 mm | ||
| − | |15= File:KH1716 F.jpg|16= '''Figure 8.''' ''Gabyella inae'' male (Ontario), 4<sup>th</sup> | + | |15= File:KH1716 F.jpg|16= '''Figure 8.''' ''Gabyella inae'' male (Ontario), 4<sup>th</sup> antennal flagellar segment, scale 0.1 mm |
|17= File:Leptosciarella opaca Wing KH1716.jpg|18= '''Figure 9.''' ''Gabyella inae'' male (Ontario), wing, scale 0.1 mm | |17= File:Leptosciarella opaca Wing KH1716.jpg|18= '''Figure 9.''' ''Gabyella inae'' male (Ontario), wing, scale 0.1 mm | ||
}} | }} | ||
Latest revision as of 18:26, 1 January 2021
Ordo: Diptera
Familia: Sciaridae
Genus: Gabyella
Name
Gabyella inae unpublished
Type material
Holotype: ♂, 15.07.2013, Malaise trap, leg. Tremblay, BIOUG11865-D11 in BIOUG
Type locality
Canada, Quebec, Forillon National Park, 135 m, 48.857° N 64.376 W
Other material studied
Canada: 1 ♂, Ontario, Silver Creek, Malaise trap, Dumouchel, 13.-20.06.1996, PKHH 1716.
Description (male)
Head. Eye bridge 3–6 rows of facets. Antenna unicolour. LW-index of 4th flagellomere 2.3–2.6; neck 0.25–0.4 × segment width; transition of basal part to neck pronounced. Colour of neck unicolour. Antennal setae shorter than segment width; fine; adjacent. Palpus darkened; short; palpomeres 3. First palpomere thickened; with 2–3 setae; with only sparse sensilla. Second palpomere globular. Third palpomere shorter than first. Thorax. Colour brown. Notum unicolour. Thoracic setae normal; brown. Posterior pronotum bare. Mesothoracic sclerites bare. Legs. Colour yellow. Hind coxa darkened. Setae on front coxa darkened. Front tibial organ as patch of setae; dark; front tibial organ not bordered. Tibial setae on hind legs weak and inconspicuous. Tibial spurs of equal length. Claws untoothed. Wing. Wing slightly darkened; with weakly developed anal lobe. 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 bare; bM bare; r-m bare; bM:r-M 0.8–1.15; st-Cu:bM 0.3–0.6; R1:R 2.5–2.9; c:w 0.7–0.83. Halter dark, or darkened; of normal length. Abdomen. Abdominal setae strong; dense; on tergites brown; on sternites brown. Hypopygium concolour with abdomen; LW-index 0.55–73. Base of gonocoxites with weak setae, or 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 2.6–2.9; Inner margin concave; apex tapered, or with one obtuse angle. Apical tooth present; without internal structure; strong, or of medium strength; LW-Index 1.5–2.5. Awl-like setae long; beneath apical tooth numerous and reaching far beyond the tooth. Megasetae absent. Whiplash-hair absent. Tegmen 0.8–0.95 × longer than broad; trapezoid, or triangular; without special features; central process finger-like. Length of ejaculatory apodeme/hypopygium 15–23 %; base of ejaculatory apodeme present. Field with aedeagal teeth inconspicuous. Measurements. Body size 3–3.7 mm. Hind tibia 1.4–1.6 mm. Wing length 3.2–4 mm.
Diagnosis
G. inae is similar to Gabyella neoopaca by the partly darkened coxae, but the gonostylus is more slender and the dorso-apical bulge at the gonostylus is less pronounced.
DNA Barcoding
The COI sequence is assigned to BIN BOLD:ACM8049 (n=1, K2P: 13.48%).
Etymology
The species is named after Ina Gorban (Vilnius, Lithuania).
Discussion
The second specimen from Ontario differs from the holotype by the still more tapered gonostylus and a nearly completely lacking dorso-apical bulge. It was previously identified as Gabyella opaca (Species-ID) and even the current identification remains uncertain and it may probably be still another species. Future studies must reveal, whether there exist still more congeneric species of this genus in North America.
Distribution
Canada.
Images
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