A review of Antillocladius Saether and Litocladius Mendes, Andersen et Saether, with the description of two new Neotropical genera (Diptera, Chironomidae, Orthocladiinae) Mendes, Humberto Fonseca Andersen, Trond Zootaxa 2008 2008-09-29 1887 1 1 75 67JJM Mendes & Andersen, 2008 Mendes & Andersen 2008 [151,422,471,497] Insecta Chironomidae Antillocladius Animalia Diptera 33 34 Arthropoda species plicatus sp. nov.  ( Figs 33–37)   Type material:  Holotypemale,  BRAZIL: Bahia: Porto Seguro, Estação Ecológica Pau Brasil, 16°23'17.6''S, 39°10'55.6''W,  17.v. 2002, 107 m a.s.l., Malaise trap(Trilha-1) C.O. Azevedo et al. ( BIOTA-FAPESP) ( MZUSP).  Paratypes: 4 males, same data as holotype ( MZUSP, ZMBN).  Diagnostic characters:The species can be separated from all other members of the genus by the short virga apparently attached to the penis cavity and the long inferior volsella with median, oblique fold.   Etymology:From Latin,  plicatus, meaning fold; referring to the shape of the inferior volsella.  Male(n = 5, except when otherwise stated). Total length 1.43–1.80, 165 mm. Wing length 0.91–1.03, 1.00 mm. Total length / wing length 1.42–1.76, 1.65. Wing length / length of profemur 2.47–2.68, 2.53. Coloration dark brown, thorax brown without distinct marks.  Head.AR 1.10–1.25, 1.20. Ultimate flagellomere 310–360, 341 µmlong. Temporal setae 7–9, 8; including 3–4, 3 inner verticals; 3–4, 3 outer verticals; and 2 postorbitals. Clypeus with 4–6, 5 setae. Tentorium, stipes, and cibarial pump as in Figure 33. Tentorium 79–84, 82 µmlong; 15–18, 16 µmwide. Stipes 79–93, 87 µmlong; 27 (1) µm wide. Palp segment lengths (in µm): 13–16, 14; 34–36, 35; 61–75, 68; 57–75, 66; 75–107, 90. Third palpomere with 2–4, 3 sensilla clavata subapically, longest 11–14, 13 µmlong.  Thorax( Fig. 34). Antepronotum with 2–3, 3 setae. Dorsocentrals 5–7, 6; acrostichals in mid scutum, composed of 2–4, 3 simple anterior and 7–17, 12 scalpellate posterior setae, irregularly biserial; prealars 2–3, 3; supraalar 1. Scutellum with 4 setae.  Wing( Fig. 35). VR 1.33–1.48, 1.39. C extension 23–36, 29 µmlong. Brachiolum with 1 seta; R with 0–1, 0 seta; other veins and cells bare. Squama with 5–6, 6 setae.  Legs.Spur of foretibia 34–41, 38 µmlong; spurs of midtibia 18–23, 20 µmand 18–20, 19 µmlong; spurs of hind tibia 34–43, 38 µmand 16–23, 19 µmlong. Width at apex of foretibia 24–27, 25 µm; of midtibia 23– 27, 24 µm; of hind tibia 27–29, 28 µm. Comb with 12–13, 13 setae; longest 25–32, 29 µm; shortest 16–18, 17 µm. Lengths and proportions of legs as in Table 6.   TABLE 6.Lengths (in µm) and proportions of legs of  Antillocladius plicatus  sp. n., male (n = 5).    fe ti ta1 ta2 ta3 ta4  p1 364–425, 399 407–443, 430 292–349, 316 162–205, 183 101–126, 111 58–68, 65  p2 364–418, 395 385–443, 418 158–191, 174 83–97, 89 50–65, 60 32–47, 39  p3 410–472, 447 443–514, 489 245–295, 276 140–158, 150 112–122, 116 47–58, 53  ta5 LR BV SV BR  p1 36–43, 40 0.67–0.80, 0.73 2.70–2.98, 2.88 2.42–2.83, 2.63 3.2–4.5, 3.7  p2 25–32, 29 0.38–0.44, 0.41 4.16–5.09, 4.60 4.36–5.02, 4.70 3.5–4.5, 3.9  p3 32–38, 35 0.55–0.58, 0.56 3.28–3.53, 3.42 3.34–3.48, 3.40 4.0–5.5, 4.9   FIGURES 33–37.  Antillocladius plicatus  sp. n., male. 33—tentorium, stipes, and cibarial pump; 34—thorax; 35—wing; 36—anal point and tergite IX and dorsal aspect of left gonocoxite and gonostylus; 37—hypopygium with anal point and tergite IX removed, dorsal aspect to the left and ventral aspect to the right.  Hypopygium( Figs 36–37). Tergite IX covered with microtrichia; laterosternite IX with 4–8, 6 setae. Anal point narrowly triangular; 32–45, 38 µmlong; 23–29, 24 µmwide at base; 1–3, 2 µmwide at apex; with 9–15, 12 setae. Phallapodeme 50–64, 59 µmlong; transverse sternapodeme arcuate, 50–57, 54 µmlong, oral projections barely indicated. Virga 7–10, 9 µmlong. Gonocoxite 123–152, 134 µmlong. Gonostylus 59–66, 62 µmlong; megaseta 4–6, 5 µmlong. HR 2.07–2.31, 2.15; HV 2.34–2.94, 2.65.   Distribution:The species is known from Bahia State, Brazil. 2002-05-17 BIOTA-FAPESP, MZUSP C. O. Azevedo Brazil -16.388222 Estacao Ecologica Pau Brasil 1 -39.182114 Porto Seguro 33 34 1 Bahia holotype [283,999,666,692] 2002-05-17 MZUSP, ZMBN C. O. Azevedo Brazil -16.388222 Estacao Ecologica Pau Brasil 1 -39.182114 Porto Seguro 33 34 4 4 Bahia paratype