<p> <strong> Neotropical <em> Ablabesmyia </ em> Johannsen (Diptera: Chironomidae, Tanypodinae) – Part I </ strong> </ p> Author Oliveira, Caroline Silva Neubern De csneubern@gmail.com Author Silva, Mário Antonio Navarro Da Author Gessner, Alaíde Aparecida Fonseca text Zootaxa 2013 2013-11-04 3733 1 1 123 http://dx.doi.org/10.11646/zootaxa.3733.1.1 journal article 10.11646/zootaxa.3733.1.1 1175-5326 5268657 EE758378-9459-4970-8D59-5258597A0E28 Ablabesmyia metica Roback ( Figs 51 , 52 ) Ablabesmyia metica Roback, 1983: 239 Type material. Holotype : ♂ , Colômbia , Laguna Mozambique , 25.ii.1972 , S.S. Roback — ANSP . Material examined: 2 ♂♂ with larval and pupal exuviae, Brazil , São Paulo , São Carlos, Mayaca pond, 13.iv.2004 , C.S.N. Oliveira — LEIA ; 2 ♂♂ with larval and pupal exuviae, same previous data, 10.xii.2002 , C.S.N. Oliveira — DZUP ; ♂ with pupal exuviae, São Paulo , Luís Antônio, Estação Ecológica Jataí , Óleo pond, 25.vii.2003 , S. T . Strixino— DZUP ; 3 ♂♂ , same previous data— LEIA ; ♂ with pupal exuviae, São Paulo , Luís Antônio, Estação Ecológica Jataí , Óleo pond, 25.vii.2003 , S. T . Strixino— DZUP ; ♂ , same previous data, Beija-Flor reservoir, 20.xi.2001 , S. T . Strixino— DZUP ; ♂ , Bahia , Feira de Santana , Universidade Estadual de Feira de Santana ( CUFS ), Pilão Arcado, 04.x.2006 , light trap , R . Vieira— LEIA ; 5 ♂♂ , Amazonas , Manaus, igarapé Cabeça Branca, 16.viii.2008 , C.S.N. Oliveira — LEIA ; ♂ , Pará , Boa Vista , Cauamé river , 30.v.2009 , L.M. Fusari — LEIA . Diagnostic characters. A. metica differs from other species by combination of the following characters: Male —m-cu at the same height r-m and f-cu, tergite IX with lateral tufts setae, gonostylus small and aedeagal complex with only basidorsal lobe; Pupa —apex of aeropyle tube club-shaped, thoracic horn with spines lateral and base, lumen with small circles, genital sac length; Larva —head capsule elongated, ligula teeth in concave arch, dorsal pore present, postoccipital margin with central projections, A 1 312–333 µm, procercus with 6 anal setae and posterior parapods with 2 claws brown. Male (n = 5, unless otherwise stated): Dimensions : Total length 1.16–2.76 mm . Wing length 1.12–1.71 mm . Total length/wing length 1.51–2.46. Wing length/length of profemur 2.28–2.73. Coloration ( Figs 51A–F , 52A ): wings, thorax and abdomen follow figures 51A, 51B and 51F. Legs: P I — femora with 3 bands, tibiae with 3 bands; P II —femora with 2 bands, tibiae with 3 bands; P III —femora with 1 band, tibiae with 3 bands. Ratio of bands, related tibiae and tarsomeres 1 follow table 38. Hypopygium: gonocoxite and gonostylus yellow. FIGURES 51A–F. Ablabesmyia metica Roback : adult male. (A) Wing; (B) Thorax; (C–E) P1 (C), P2 (D), P3 (E); (F) Abdomen. FIGURES 52A–C. Ablabesmyia metica Roback : adult male. (A) Hypopygium: dorsal aspect; (B, C) Hypopygium: ventral aspect. TABLE 38. Ratio of bands, related tibiae and tarsomeres 1 of A. metica , ♂, (n=5).

A/B	LMB/LBCB	Y/Z
P I	0.50	0.37–0.40	0.38–0.45
P II	0.53	0.24	0.36–0.43
P III	0.37	0.78–0.83	0.34–0.38

Head : antenna with 14 flagellomeres; AR 1.24–1.47; apical flagellomere 97–154 µm long and subapical seta 20–23 µm long; temporals 30–31; postoculars 12; coronal triangle 100–126 µm long and base 78.5 µm (n=1); clypeus bearing 21–30 setae, 83 µm long and 77 µm wide; labrum with 2 setae, 77–98 µm long and 48 µm wide; tentorium 131–134 µm long; cibarial pump 236–280 µm long and orifice 50 µm from apex; palpomeres 1–5 : 37–59; 60–92; 100–122; 103–130; 176–225 µm long; palpomere 3 with sensilla capitata 25 µm from base. Wing ( Fig. 51A ): width/lenght 0.31–0.36; VR 0.85–0.87; C 0.97–1.20 mm long; Sc 0.48–0.63 mm long; m-cu 26–30 µm long and 331–406 µm from arculus, m-cu at the same height r-m and f-cu; fr 387–468 µm from arculus; R 3 apex close to C; brachiolum with 3 setae; squama with 23–30 setae. Thorax ( Fig. 51B ): antepronotals 4–5; humerals 5; prealars 11; supraalar 1; scutelars 50–55. Legs ( Fig. 51C–E ): P I —apex of tibia 40–42 µm wide and with apical pectinated spur 33–47 µm long, spur ratio 0.60–0.71; tarsomeres 1–2 with 2 pseudospurs 48–57 µm long. P II —apex of tibia 40–42 µm wide and with 2 apical pectinated spurs 47–55 and 24–33 µm long, spur ratio 0.63–0.64 and 0.43–0.46 respectively; tarsomeres with 2 apical pseudospurs 51–63 µm long. P III —coxa with 5 central microsetae; apex of tibia 45–47 µm wide and with 2 apical pectinated spurs 52–56 and 33–43 µm long, spurs ratio 0.61–0.62 and 0.59–0.70 respectively; tarsomeres 1–3 with 2 or 3 apical pseudospurs 43–56 µm long. Lengths and proportions of leg segments table 39. 1–3 TABLE 39. Lengths (in µm) and proportions of leg segments in A. metica , ♂, (n=5).

fe	ti	ta1	ta2	ta3	ta4
P I	481–593	581–692	425–500	294–350	213–263	123–163
P II	556–662	494–615	538–600	250–350	175–246	118–153
P III	500–588	606–754	630–738	337–340	246–258	144–169

TABLE 39. (Continued)

ta5	LR	BV	SV	BR
P I	93–113	0.68–0.81	1.94–2.23	2.41–2.65	3.3–3.5
P II	88–107	0.81–1.00	2.30–2.47	2.09–2.58	6.4–7.0
P III	111–123	0.98–1.15	2.11–2.42	1.58–1.88	5.0–5.4

Hypopygium ( Fig. 52A–C ): tergite IX with 1 central setae; anal point completely covers the aedeagal complex; phallapodeme 46–60 µm long; sternapodeme 77–89 µm long; gonocoxite 105–140 µm long and 64–73 µm wide; gonostylus 73–100 µm long, with 5 apical teeth; tapered megaseta; HR 1.10–1.86; HV 2.55–2.88. Aedeagal complex: aedeagal blade, dorsal lobe and lateral lobe absent; basidorsal lobe present. Female: unknown. Immatures: following Neubern et al. 2008 .