Bradysia brevispina Tuomikoski, 1960

Babytskiy, A. I., Bezsmertna, O. O., Moroz, M. S., Pavliuk, S. D. & Honcharenko, B. V., 2020, New Records Of Bradysia Species (Diptera, Sciaridae) From Ukraine, Zoodiversity 54 (4), pp. 329-340 : 330-332

publication ID

https://doi.org/ 10.15407/zoo2020.04.329

persistent identifier

https://treatment.plazi.org/id/C01487C1-FF88-FFEB-FF07-FAED7DA1FA6A

treatment provided by

Felipe

scientific name

Bradysia brevispina Tuomikoski, 1960
status

 

Bradysia brevispina Tuomikoski, 1960 View in CoL ( figs 1–8 View Figs 1–8 )

Material examined. Ukraine, Volyn Region: outskirts of Sokyrychi, Kivertsi National Park “Tsumanska Pushcha”, 50.87516 N, 025.51393 E, ca. 210 m a. s. l., hornbeam forest with an admixture of pine and old larches, 28.06.2017, 1 {, leg. A. Babytskiy (No. 225, UkrBIN-795922) GoogleMaps .

D i s t r i b u t i o n: Austria, Bulgaria, Czech Republic, Denmark (mainland), Finland, French (mainland), Germany, Italy (mainland), Lithuania, Norway (mainland), Slovenia, Spain (mainland, Balearic Is.), Sweden, Switzerland, The Netherlands ( Menzel & Heller, 2013), Kazakhstan ( Sataeva, 2006), Ukraine (first record), and United Kingdom ( Menzel et al., 2006). Also known from Romania, northern European Russia (Gerbachevskaja- Pavluchenko, 1986), and West Siberia (Altai Region) ( Komarova, 2003).

Diagnosis. Eyes clearly hairy. Eye bridge consists of 2–3 rows of ommatidia (facets), on the side of the eye 12 facet rows present ( fig. 8 View Figs 1–8 ). Maxillary palp dirty yellow, consists of 3 palpomeres. Basal palpomere with only 1 subapical, strong seta or with 1 extra short seta ( fig. 5 View Figs 1–8 ). Sensory area dark, in deep pit, sharply framed on all circle. Flagellum 1.2 mm in length, the 4 th flagellomere 2.5 times as long as thick; the neck 1 / 8 – 1 / 7 of the body length ( fig. 6 View Figs 1–8 ). The length of the longest setae 2 times exceeds the thickness of the flagellomere body ( fig. 6 View Figs 1–8 ). Thorax and abdomen black. All setosity of notum (dorsal exoskeleton of the thorax) yellowish-white, including the longer notopleural and 2 long scutellar setae ( fig. 1 View Figs 1–8 ). Abdomen quite long, sparsely and pale setose. Legs pale brown, but forelegs paler, yellowish. Spurs of t 2 and t 3 1.5 times as long as width of the end of tibiae. The length of femur 3 = 0.65 mm, tibia 3 = 0.80 mm, tarsus 3 = 0.75 mm, metatarsus 3 = 0.35 mm. Wing wide, 1.7 mm in length. Wing membrane glassy, with very weakly colored hind veins, c/w = 0.7–0.8, subcostal vein short, R 1 / R = 0.5, R 1 falling into C at the middle of the wing clearly in front of the base of M-fork; R 5 ventrally naked or almost naked, ends before the top of M 2 and roughly opposite the border between the 2 nd and 3 rd thirds of M 1; y naked or almost naked; M-fork almost equally wide, stM/M-fork = 1; stCuA weakened, stCuA/x = 0.5 ( fig. 7 View Figs 1–8 ). Halter pale yellow ( fig. 1 View Figs 1–8 ). Hypopygium dark, pretty narrow; ventral base of gonocoxites U-shaped, with short marginal setae in the proximal part, the rest of the margin glabrous ( fig. 2 View Figs 1–8 ). Gonostylus elongate with short and strong, bluntly pointed apical tooth and subapical group of slightly curved hyaline spines, at least 2 times as long as tooth ( fig. 4 View Figs 1–8 ) ( Tuomikoski, 1960).

Bradysia brevispina View in CoL belongs to the large B. tilicola View in CoL group contains 32 species, which differ from the other Bradysia View in CoL by trapezoid, membranous or weakly sclerotized tegmen with flattened apex and small, roundish, dark sensory area of basal palpomere, located in a distinctly deep pit ( Menzel & Mohrig, 2000; Menzel & Heller, 2005). From the other species of this species group B. brevispina View in CoL differs by dark thorax and abdomen, yellowwhite halteres and body setosity, the value of the 4 th flagellomere length/width index 2.5 and by the structure of hypopygium (U-shaped ventral base of gonocoxites and elongate gonostylus with short and strong, bluntly pointed apical tooth, and subapical group of slightly curved spines, at least 2 times as long as tooth).

Note. Tibial organ of t 1 in present specimen consists of 6 pale setae in comb-like row ( fig. 3 View Figs 1–8 ). Studied male imago 1.8 mm in length, wing 1.3 mm in length and 0.6 mm in width, y bare ( fig. 7 View Figs 1–8 ). Biometric indexes of studied specimen: width/length of wing = 0.46; stM/Mfork = 1.04–1.05; R 1 /R = 0.75–0.78; x/y = 1.36–1.38; stCuA/x = 0.65–0.67; c/w = 0.69–0.72. Length of spur/width of tibia: leg 1 = 1.46–1.51, leg 2 = 1.74; leg 3 = 1.25–1.40. Length of metatarsus/length of tibia: leg 1 = 0.50–0.51, leg 2 = 0.49, leg 3 = 0.50. Length of tibia 3/ length of thorax 0.73.

R

Departamento de Geologia, Universidad de Chile

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Sciaridae

Genus

Bradysia

Loc

Bradysia brevispina Tuomikoski, 1960

Babytskiy, A. I., Bezsmertna, O. O., Moroz, M. S., Pavliuk, S. D. & Honcharenko, B. V. 2020
2020
Loc

Bradysia brevispina

Tuomikoski 1960
1960
Loc

B. brevispina

Tuomikoski 1960
1960
Loc

Bradysia

Winnertz 1867
1867
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