Antillocladius venequatoriensis Mendes, Andersen & Saether, 2004, new species
Creators: name: Humberto F. Mendes
name: Trond Andersen
name: Ole A. Saether
Publisher: name: Zenodo
Year: 2004
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Chironomidae
Antillocladius
Antillocladius venequatoriensis

description: Antillocladius venequatoriensis new species
(Fig. 15 A–F)
Type material: Holotype male, VENEZUELA: Aragua, Parque Nacional Henri Pittier, Rancho Grande, 10°21.047'N, 67°41.198'W, 16–18.ix.1999, about 1000 m a.s.l., sweep net & light trap, T. Andersen (MIZA, slide mounted in Canada balsam). Paratypes: 2 males, as holotype (ZMBN); Aragua, Parque Nacional Henri Pittier, Curva Regressiva on road to Choroni, 5 males, 23.ix.1999, 1200 m a.s.l., light trap, T. Andersen (ZMBN). ECUADOR: Provincia Pichincha, Setor Palmeras, unión Rios Guajalito y Bricador, Bosque Protector Rio Guajalito 0 0 14.925'N, 78 48.193'W, 1 male, 4–10.ii.2000, 1900 m a.s.l., light trap. F.M. Quesada (ZMBN).
Diagnostic characters: The male imago can be separated from other members of the genus by having numerous setae in apical half of wing membrane; setose squama; costa weakly extended; acrostichals starting in front, all scalpellate; long virga; anal point long, nearly triangular with pointed apex and moderately strong lateral setae; and inferior volsella relatively small and rounded.
Etymology: The name refers to the countries where the species has been taken, Venezuela and Ecuador.
Male (n = 6).
Total length 2.01–2.21, 2.15 mm. Wing length 1.23–1.44, 1.36 mm. Total length / wing length 1.54–1.63, 1.57. Wing length / length of profemur 2.30–2.42, 2.37. Coloration brown, thorax dark brown, tarsi of all legs light brown.
Head. AR 0.98–1.05, 1.01; ultimate flagellomere 526–572, 557 µm long. Temporal setae 8–11, 9; including 2–5, 3 inner verticals; 2 outer verticals and 3–4, 4 postorbitals. Clypeus with 10 setae. Tentorium, stipes and cibarial pump as in Fig. 15 A; tentorium 125– 139, 131 µm long, 8–11, 9 µm wide at sieve pore; stipes 120–126, 122 µm long; 32–40, 36 µm wide. Palpomere lengths in µm: 22–25, 23; 35–38, 37; 90–96, 93; 85–97, 93 (4); 120– 135, 129 (4). Third palpomere with 3–4 sensilla clavata subapically; longest 10–15, 13 µm long.
Thorax (Fig. 15 B). Antepronotum with 2–3, 3 setae. Dorsocentrals 9–17, 13; acrostichals 9–14, 12, all scalpellate starting close to antepronotum; prealars 4–6, 5. Scutellum with 7–10, 8 setae.
Wing (Fig. 15 C). VR 1.37–1.61, 1.48. Costal extension 40–68, 54 µm long. Brachiolum with 1 seta; R with 11–15, 13 setae; R1 with 11–14, 13; R4+5 with 20–27, 23; M with 4–7, 6; M1+2 with 40–56, 46; M3+4 with 16–26, 21; Cu1 with 9–12, 10; and An with 10–15, 12 setae. Wing membrane with 122–163, 149 setae in cell r4+5; 81–94, 87 setae in m1+2; 39–43, 41 setae in m3+4; and 15–25, 21 in cu and an together. Squama with 5–7, 6 setae.
Legs. Spur of front tibia 45–52, 50 µm long; spurs of middle tibia 30–33, 31 µm and 29–33, 30 µm long; spurs of hind tibia 28 µm and 47–54, 51 µm long. Width at apex of front tibia 35 µm; of middle tibia 30–33, 32 µm; of hind tibia 38–40, 39 µm. Hind tibial comb with 12 setae; shortest seta 18–25, 21 µm long; longest seta 27–38, 33 µm long. Lengths (in µm) and proportions of legs as in Table 11.
Hypopygium (Fig. 15 D–F). Anal point 58–63, 61 µm long; 40–44, 42 µm wide at base; with 15–27, 24 strong lateral setae; void of microtrichia except at base. Laterosternite IX with 3–6, 5 setae. Phallapodeme 83–97, 88 µm long. Transverse sternapodeme arcuate, with rounded oral projections; 96–113, 104 µm long. Virga 58–61, 59 µm long. Gonocoxite 163–168, 165 µm long; with long, low inferior volsella. Gonostylus 94–123, 101 µm long; megaseta 7–10, 8 µm long. HR 1.37–1.73, 1.62; HV 1.86–2.27, 2.15.
description: Published as part of Humberto F. Mendes, Trond Andersen & Ole A. Saether, 2004, A review of Antillocladius Saether, 1981; Compterosmittia Saether, 1981 and Litocladius new genus (Chironomidae, Orthocladiinae), pp. 1-82 in Zootaxa 594 on pages 54-57, DOI: 10.5281/zenodo.158827