Corynoptera concinna ( Winnertz, 1867 )

Babytskiy, A. I., Zuieva, O. A., Bezsmertna, O. O. & Dudiak, I. D., 2019, The First Records Of Corynoptera Species (Diptera, Sciaridae) From Ukraine, Vestnik Zoologii 53 (3), pp. 227-236 : 233-235

Corynoptera concinna ( Winnertz, 1867) ( figs 25–31 )

M a t e r i a l e x a m i n e d. Ukraine, Kyiv City , NPP “Holosiivskyi”: 50.383772 N 30.497619 E, altitude ca. 260 m, in the house, on the window glass, by hands, 12.03.2015, 3 Ơ, leg. A. Babytskiy (No 41–42, 133, UkrBIN-795839) ; Ukraine, Odesa Region, outskirts of Lebedivka village, the bank of Burnas estuary, NNP “Tuzlovski lymany”: 45.8411667 N, 030.1398333 E, altitude ca 10 m, honeylocust-robinia forest with oak admixture, above fruit body of Agaricus sp. , sweeping, 20.07.2017, 1 Ơ, leg. A. Babytskiy (No 290) ; Hungary, Central Hungary Region, Budapest City : 47.4966458 N 019.0611258 E, altitude ca. 120 m, in the house, on the windowsill, found dead, 14– 15.12.2018, 1 Ơ, leg. A. Babytskiy (No 837) .

D i s t r i b u t i o n: Afghanistan, Belgium, Britain Is., Canary Is., Finland, Germany, Latvia, Poland, Romania, Spanish mainland ( Gerbachevskaja-Pavluchenko, 1986; Menzel & Heller, 2013), Hungary and Ukraine (first records).

Diagnosis. Male imagoes reach 2.0 mm in length. Eye bridge consists of 3 rows of ommatidia ( fig. 29 ). Maxillary palpus is short, whitish colored, consists of 3 segments. Basal palpomere with 1 setae and clearly bordered sensory pit. Palpomere 3 is narrow, almost twice as long as palpomere 2. Antenna is slim and honey-colored; flagellomeres with short and dense setosity, setae length is not exceeding the flagelomere width. Length/width of 4th flagelomere is 2.5–3.0 ( fig. 31 ). Thorax is dark, black-brownish colored ( fig. 25 ). Mesonotum setosed, scutellum with 2 very strong and dark bristles; postpronotum naked. Abdomen concolorous with thorax and setosed. Legs are yellow, tarsus are brown. Tibial organ t 1 with proximally bordered unarranged patch of bristles ( fig. 28 ). Tarsal claws without teeth. Wings are slightly browned; r 1 /r = 0.67; r 1 falls into C well before the base of M-fork; c a little longer then ½ w; y> x, both bare; stM is slightly longer than M-fork ( fig. 30 ). Helter is whitish ( fig. 25 ). Gonocoxa are short and strong, yellow colored with short ventral inner side, slightly setosed on the membrane ( fig. 27 ). Gonostylus short and compact, with dense bristles at the apex and strong subapical megaseta on raised socked below ( fig. 26 ). Megaseta directed inward and downward, without any neighbor setae. Dorsal side of gonostylus is wing-like extended. Genital plate (tegmen) is slightly margined laterally, apical rounded, with fine teeth and moderately long aedeagus ( Winnertz, 1867; Lengersdorf, 1928 –1930; Mohrig, 1993; Hippa et al., 2010).

Corynoptera concinna belongs to the cognominal C. concinna -Group contains 8 species which differ from the other Corynoptera by presence of small, distinctly deep sensory

Scale bars: 32, 34, 37, 38 — 0.20 mm; 33, 35, 36 — 0.05 mm.

pit, short and compact gonostyles with apical strong spine on raised socket usually with smaller, shorter spines below, also apex of tegmen in species of this group usually with central finger-like process or with fine central bridge ( Menzel & Mohrig, 2000). From related species of the group C. concinna differs by megaseta location below apical group of bristles, at the upper third of gonostylus.

N o t e. Vein y sometimes bare or with 1 to 3 macrotrichia, r 1 with 3–9 macrotrichia. Biometric indexes of studied specimens: wing length — 1.47–1.93 mm, wing width — 0.59– 0.78 mm; width/length of wing 0.40–0.41; stM/M-fork = 1.02–1.14; r 1 /r = 0.66–0.84; x/y = 0.74–0.90, stCu/x = 0.16–0.31 or stCu is indistinct; c/w = 0.57–0.73. Length of spur/width of tibia: leg 1 = 1.01–1.37, leg 2 = 1.41–1.83; leg 3 = 1.36–1.78. Length of metatarsus/length of tibia: leg 1 = 0.46–0.50, leg 2 = 0.41–0.62, leg 3 = 0.42–0.45. Length of tibia 3/length of thorax 1.10–1.42.

Figures

Figs 25–31. Corynoptera concinna, male: 25 — thorax; 26 — ventral view of gonostyles; 27 — general view of hypopygium ventral; 28 — front tibial (t1) organ; 29 — eye bridge; 30 — wing (scale bar — 0.20 mm); 31 — the fourth flagellomere. Scale bars: 25, 27, 30 — 0.20 mm; 26, 28, 29, 31 — 0.05 mm.