Trichosiopsis neoindistincta
Ordo: Diptera
Familia: Sciaridae
Genus: Trichosiopsis
Name
Trichosiopsis neoindistincta unpublished
Type material
Holotype: ♂, 22.5.–30.5.2013, Malaise trap, leg. BIObus 2013, BIOUG13812-C03 in BIOUG
Type locality
Canada, New Brunswick, Fundy National Park
Barcoded material
| Stadium | Country | Province | Locality | Habitat | Method | Date | Collector | Collection Number | Collection | Latitude | Longitude | Elevation (m) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 ♂ | Canada | New Brunswick | Fundy National Park, Maple Grove Trail | Malaise trap | 22.5.–30.5.2013 | BIObus 2013 | BIOUG13812-C03 | BIOUG | 45.59 | -64.985 | 212 | |
| 1 ♀ | Canada | Manitoba | Riding Mountain National Park, Arrowhead Trail | Malaise trap | 5.6.–12.6.2012 | Peter Tarleton | BIOUG03226-A06 | BIOUG | 50.676 | -99.898 | 663 | |
| 1 | Canada | Saskatchewan | Prince Albert National Park, Hwy 263 | Malaise trap | 1.6.–7.6.2012 | Theresa Stene | BIOUG07195-F04 | BIOUG | 53.85 | -106.078 | 627 | |
| 1 ♂ | Canada | Quebec | Forillon National Park, trail off of park compound (i.e. operation centre), 1501 boul. Forillon | Malaise trap | 10.6.–17.6.2013 | F. Tremblay | BIOUG11151-E07 | BIOUG | 48.857 | -64.376 | 135 | |
| 1 | Canada | New Brunswick | Fundy National Park, Maple Grove Trail | Sweep netting | 28.05.2013 | BIObus 2013 | BIOUG13834-E01 | BIOUG | 45.59 | -64.985 | 212 | |
| 1 | Canada | Northwest Territories | Nahanni National Park Reserve, Nailicho (Virginia Falls) | Malaise trap | 16.6.–27.6.2014 | Parks Canada | BIOUG16955-A09 | BIOUG | 61.606 | -125.758 | 578 | |
| 1 | Canada | British Columbia | Yoho National Park, Bunkhouse | Malaise trap | 4.6.–11.6.2014 | Jamie | BIOUG18947-E10 | BIOUG | 51.365 | -116.528 |
Description (male)
Head. Eye bridge 3 rows of facets. Antenna unicolour. LW-index of 4th flagellomere 2.03–2.23; neck 0.28–0.38 × segment width; transition of basal part to neck pronounced. Colour of neck unicolour. Antennal setae shorter than segment width; fine; dense; salient. Palpus darkened; of normal length, or long; palpomeres 3. First palpomere elongate; with 4–5 setae; with only sparse sensilla. Second palpomere elongate. Third palpomere as long as first. Thorax. Colour bright brown. Notum unicolour. Thoracic setae long and strong, or normal; brown. Posterior pronotum setose. Postpronotal setae 4; fine. Mesothoracic sclerites bare. Legs. Colour yellow. Hind coxa of same colour as femora. Setae on front coxa pale. Front tibial organ as patch of setae; dark; 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 0.67–0.77; st-Cu:bM 0.2–0.3; R1:R 1.18–1.45; c:w 0.73–0.81. Halter darkened; of normal length. Abdomen. Abdominal setae strong; dense; on tergites brown; on sternites brown, or white. Hypopygium concolour with abdomen; LW-index 0.6–0.72. Base of gonocoxites with weak 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 1.95–2.22; Inner margin straight; apex equally rounded. Apical tooth present; without internal structure; of medium strength; LW-Index 2.1–3.1. Awl-like setae normal; present beneath apical tooth. Megasetae absent. Whiplash-hair absent. Tegmen 0.51–0.71 × longer than broad; rectangular with rounded edges, or of unusual shape; without special features; central process absent. Length of ejaculatory apodeme/hypopygium 25–33 %; base of ejaculatory apodeme present. Field with aedeagal teeth inconspicuous. Measurements. Body size 2.9–3.7 mm. Hind tibia 1.5–1.7 mm. Wing length 2.8–3.5 mm.
Diagnosis
By the bright body hairs and the saddle-shaped tegmen, Trichosiopsis neoindistincta belongs to the Trichosiopsis subcoarctata complex. It is very similar to Trichosiopsis indistincta and Trichosiopsis transatlantica and differs only in nuances. Tr. neoindistincta is a little larger than the other species, has longer antennae and a shorter gonostylus. The abdominal hairs are somewhat darker.
DNA Barcoding
The COI sequence is assigned to BIN BOLD:ACC4470 (average distance 0.32%, max. 0.8%, n=8, K2P: 8.44%).
Etymology
The Greek prefix neo- means “new”. The name indicates that the species is the New World variant of Tr. indistincta.
Distribution
Canada (British Columbia, Manitoba, New Brunswick, Northwest Territories, Quebec, Saskatchewan).
Images
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