Culiseta gedanica Szadziewski et Giłka, 2011

Giłka, Wojciech, Harbach, Ralph E. & Perkovsky, Evgeny E., 2021, Mosquitoes (Diptera: Culicidae) in Eocene amber from the Rovno region, Ukraine, Zootaxa 5016 (2), pp. 257-270 : 263

publication ID	https://doi.org/ 10.11646/zootaxa.5016.2.6
publication LSID	lsid:zoobank.org:pub:38A6AB65-BC1E-461F-8851-8648B6EBBED5
persistent identifier	https://treatment.plazi.org/id/9D45878E-FFE9-FF93-FF69-159EFD88FAC8
treatment provided by	Plazi
scientific name	Culiseta gedanica Szadziewski et Giłka, 2011
status

Treatment

Culiseta gedanica Szadziewski et Giłka, 2011 View in CoL

Figs 4–6 View FIGURE 4 View FIGURE 5 View FIGURE 6

Material examined. Adult male (left foreleg missing) preserved in a sub-rectangular piece of amber 25.5 × 23 × 13.5 mm ( SIZK L-800, Fig. 4A View FIGURE 4 ; Voronki, Rovno region, Ukraine; Eocene, Priabonian (33.9–37.8 Mya). Syninclu- sions. SIZK L-800: stellate hairs, 2 Formicidae [male of Plagiolepis solitaria Mayr and worker of Ctenobethylus goepperti (Mayr) ], Aphidinea ( Germaraphis sp. ), Dolichopodidae , Ceratopogonidae, Aranei ; SIZK L-801: Artema- topodidae ( Electribius sp. ); SIZK L-802: Acari, mammalian hair; SIZK L-803: incertae sedis; SIZK L-804: Aranei; SIZK L-805: Dolichopodidae, Acari, Collembola ; SIZK L-806: 3 Dolichopodidae , Sciaridae , 2 Aranei, Acari, incer- tae sedis. Holotype male (cf. Szadziewski & Giłka 2011).

Description. Adult male (n = 2, measurements of holotype in boldface). Colour: Greyish-brown, with thorax and genitalia slightly darker ( Fig. 4B View FIGURE 4 ). Size: Body length 4.6 –5.0 mm, body + proboscis 6.7 –6.8 mm, thorax + abdomen 4.2 –4.6 mm ( Fig. 4B View FIGURE 4 ). Antenna ( Fig. 4B, C View FIGURE 4 ): Length including pedicel ~ 1.75 mm, flagellum 1.68 mm, flagellomeres 12 and 13 0.38 and 0.40 mm, respectively, their combined length less than total length of preceding flagellomeres (ratio 0.87); whorls well developed, flagellomeres 1–11 each with whorl of many long setae, flagellomeres 12 and 13 with whorls of fewer weaker setae; antenna about 0.95 length of proboscis. Proboscis ( Fig. 4C, D View FIGURE 4 ): Length 1.80– 2.06 mm, shorter than maxillary palpus (ratio 0.78 –0.83). Maxillary palpus ( Fig. 4C, D View FIGURE 4 ): Length 2.16– 2.63 mm, longer than proboscis (ratio 1.20– 1.28); palpomeres 1–3 ankylosed (combined length 1.30 mm), about 0.72 length of proboscis; palpomere 4 (0.50– 0.59 mm), longer than palpomere 5 (0.36– 0.48 mm), ratio 1.23 –1.39; palpomeres 2–4 stout, parallel-sided; palpomere 5 smaller, slightly swollen medially, tapering towards narrow apex. Thorax ( Fig. 5A, B View FIGURE 5 ): Setae as shown in Fig. 5A View FIGURE 5 ; mesothoracic prespiracular area with several setae, postspiracular setae not observed. Wing ( Fig. 5C, D View FIGURE 5 ): Length 2.81– 2.88 mm; distal 0.5 of wing with slender lanceolate and spatulate scales on most veins; veins R 2 and R 3 distinctly longer than vein R 2+3 (R 2 /R 2+3 = 2.25– 2.40, R 3 /R 2+3 = 2.40– 2.50); arrangement of veins in area of radiomedial and mediocubital crossveins as shown in Fig. 5D View FIGURE 5 ; anal vein (1A) ending 0.5 of distance between intersection of mediocubital crossvein and cubitus and base of M 3+4 towards wing apex. Legs ( Fig. 5E–H View FIGURE 5 ): Ungues of unequal length on fore- (~120 and 80 μm) and midleg (~120 and 85 μm), equally long on hindleg (~50 μm long); larger anterior unguis of fore- and midleg each with stout proximal and medial teeth, smaller unguis of fore- and midlegs each with proximal tooth, medial tooth absent; hindungues simple (for length of leg segments see Table 3). Genitalia ( Fig. 5I, J View FIGURE 5 ): Gonocoxite long (~360 μm), tapering toward rounded apex; gonostylus slender (~310 μm), hockey-stick-shaped, distinctly curved subapically, with apico-medial lobe and long apical tooth; claspette short, curved, with darkly pigmented, serrate margins and pointed apex (cf. Szadziewski & Giłka 2011: fig. 3).