Antillocladius sooretama, Humberto F. Mendes, Trond Andersen & Ole A. Saether, 2004

Humberto F. Mendes, Trond Andersen & Ole A. Saether, 2004, A review of Antillocladius Saether, 1981; Compterosmittia Saether, 1981 and Litocladius new genus (Chironomidae, Orthocladiinae), Zootaxa 594, pp. 1-82 : 50-51

Antillocladius sooretama new species

( Fig. 13 A–E)

Type material: Holotype male, BRAZIL: Espírito Santo State, Parque de Sooretama , Cupido, ii–iii.1948, L. Travassos, Freitas & H. Travassos (FIOCruz, slide mounted in Euparal). Paratypes: 6 males as holotype (FIOCruz).

Diagnostic characters: The male imago can be separated from other members of the genus by having bare wing membrane and wing veins; setose squama; costa barely extended; acrostichals starting in front, all scalpellate; no virga ; anal point long, nearly parallel­sided, with blunt apex and weak lateral setae ; and inferior volsella long, posterior directed, well set­off and apically bifid.

Etymology: Named after the Parque Sooretama , the type locality of the species; the name is a noun in apposition.

Male (n = 6).

Total length 2.03 (1) mm. Wing length 1.20–1.32, 1.26 mm. Total length / wing length 1.68 (1). Wing length / length of profemur 2.35 (1). Coloration brown, thorax dark brown, tarsi of all legs light brown.

Head. AR 1.35–1.44, 1.39, ultimate flagellomere 428–464, 450 m long. Temporal setae 8–12 (2), including 1–3 inner verticals, 4 outer verticals and 3–5 postorbitals. Clypeus with 4–6 (2) setae . Tentorium, stipes and cibarial pump as in Fig. 13 A; tentorium 124 (1) m long, 13 (1) m wide at sieve pore; stipes 128 (2) m long. Palpomere lengths (2) in m: 25, 55–59, 95–109, 91–92, 112–116. Third palpomere with 3 sensilla clavata subapically, longest 15 m long.

Thorax. Antepronotum with 3 setae . Dorsocentrals 6–10, 8; acrostichals 7–10, 9, all scalpellate starting close to antepronotum; prealars 3. Scutellum with 6–8, 7 setae .

Wing ( Fig. 13 B). VR 1.30–1.41, 1.35. Costal extension 32–48, 42 m long. Brachiolum with 1 seta, other veins and cells bare. Squama with 4–5 setae .

Legs. Spur of front tibia 33–48 (2) m long; spurs of middle tibia 25–38, 30 m and 21–25, 23 m long; of hind tibia 44–51, 49 m and 21–26, 24 m long. Width at apex of front tibia 32–42 (2) m; of middle tibia 32–39, 35 m; of hind tibia 43–51, 46 m. Hind tibial comb with 11–13, 12 setae ; shortest seta 15–18, 16 m long; longest seta 34–44, 39 m long. Lengths (in m) and proportions of legs as in table 9.

p2 532– 548– 204– 104– 92–96, 56– 36– 0.37–0.41 4.01–4.46 4.84–5.29 3.1–3.2 544, 536 560, 550 230, 219 128, 110 95 60, 58 44, 41

p3 568– 604– 328–332 168– 124– 64– 44– 0.50– 3.47– 3.47– 3.0– 632, 602 656, 639 330 204, 186 140, 133 72, 67 52, 51 0.56, 0.54 3.54,3.51 3.88, 3.65 3.5, 3.3 Hypopygium ( Fig. 13 C–E). Anal point 88–96, 93 m long; 44–59, 52 m wide at base; with 13–17, 15 strong lateral setae , void of microtrichia except at base. Laterosternite IX with 3–4, 3 setae . Phallapodeme 77–80, 78 m long. Transverse sternapodeme nearly straight, with rounded oral projections, 97 (1) m long. Virga absent. Gonocoxite 179–197, 189 m long; with long, well set­off, apically bifid inferior volsella. Gonostylus 94–96, 95 m long; megaseta 13–15, 14 m long, situated subapically. HR 1.91–207, 1.99; HV 2.10 (1).

Figures

FIGURE 13. Antillocladius sooretama new species, male imago. A – cibarial pump, tentorium and stipes; B – wing; C – anal point and tergite IX and dorsal aspect of left gonocoxite; D – hypopygium with anal point and tergite IX removed, left dorsal aspect, right ventral aspect; E – gonostylus.