<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 depaulai Neubern sp. n. ( Figs 16–19 ) Type material. Holotype : ♂ with larval and pupal exuviae, Brazil , Paraná , Ponta Grossa , Vila Velha , 50°00’W – 25°16’00’`S, 06.iii.2008 – C.S.N. Oliveira & G. R . Paula. – LEIA . Paratypes : 2 ♂♂ with larval and pupal exuviae, same data– DZUP . Diagnostic characters. A. depaulai sp. n. differs from other species by the following combination of characters: Male –antepronotum with 10 lateral setae, front and middle femora with 3 bands, middle tibiae with 4 bands, R 3 apex ending in C, gonostylus with 6 apical teeth, tapered megaseta, grooved aedeagal blade, dorsal lobe club-shaped with fringe; Pupa –apex of aeropyle tube club-shaped, thoracic horn with spines on the base, genital sac 337,50–348 µm length; Larva –head capsule expanded and without spots, postoccipital margin with central projections, ligula teeth in concave arch, dorsal pore absent, dorsal setae S 12 present, procercus brown with 112–129 µm length and with 7 anal setae. Etymology. Named after Dr. Gabriel Rezende de Paula, in recognition for his friendship and continuous support. Male (n = 3, unless otherwise stated): Dimensions : Total length 4.20 mm (n=1). Wing length 1.92–2.15 mm . Total length/wing length 2.10–2.19. Wing length/length of profemur 2.12–2.54. Coloration ( Figs 16A–F , 17A ): wings, thorax and abdomen follow figures 16A, 16B and 16F. Legs (Fig.): P I , P II –femora with 3 bands, tibiae with 4 bands; P III –femur with 2 bands, tibia with 3 bands. Ratio of bands, related tibiae and tarsomeres 1 follow table 14. Hypopygium: gonocoxite apex and gonostylus base brown. TABLE 14. Ratio of bands, related tibiae and tarsomeres 1 of A. depaulai sp. n. , ♂, (n=3).

A/B	LMB/LBCB	Y/Z
P I	0.59-0.60	0.29–0.30	0.37–0.40
P II	0.55–0.60	0.30–0.31	0.39–0.40
P III	0.48–0.60	0.29–0.47	0.39–0.40

Head : antenna with 14 flagellomeres; AR 1.89–1.91; apical flagellomere 121–125 µm long and subapical seta 44–46 µm long; temporals 48–50; postoculars 12; coronal triangle 200–205 µm long and base 105–108 µm; clypeus bearing 36–38 setae, 82–83 µm long and 80–85 µm wide; labrum with 3 setae, 103–106 µm long and 47– 51 µm wide; tentorium 211–215 µm long; cibarial pump 327–340 µm long and orifice 71–72 µm from apex; palpomeres 1–5 : 63–65; 93–95; 140–143; 138–142; 159–162 µm long; palpomere 3 with sensilla capitata 47–51 µm from base. Wing ( Fig. 16A ): width/lenght 0.28–0.35; VR 0.79–0.90; C 1.77–1.98 mm long; Sc 0.93–1.00 mm long; m-cu 46 µm long and 615–719 µm from arculus; fr 769–875 µm from arculus; R 3 apex ending in C, brachiolum with 3 setae; squama with 39 setae. Thorax ( Fig. 16B ): antepronotals 10; humerals 5; prealars 17; supraalar 1; scutelars 33. Legs ( Fig. 16C–E ): P I –apex of tibia 63–64 µm wide and with apical pectinated spur 62–72 µm long, spur ratio 0.46–0.52; tarsomeres 1–2 with 1 or 2 pseudospurs 53–67 µm long. P II –apex of tibia 54–62 µm wide and with 2 apical pectinated spurs 33–38 and 29–32 µm long, spur ratio 0.49–0.58 and 0.58–0.67 respectively; tarsomeres 1–3 with 1, 2 or 3 apical pseudospurs 55–70 µm long. P III –coxa with 5 central microsetae; apex of tibia 62–67 µm wide and with 2 apical pectinated spurs 72–77 and 52–60 µm long, spurs ratio 0.52–0.65 and 0.55–1.00 respectively; tarsomeres 1– 3 with 2 apical pseudospurs 70–86 µm long. Lengths and proportions of leg segments table 15. TABLE 15. Lengths (in µm) and proportions of leg segments in A. depaulai sp. n. , ♂, (n=3).

fe	ti	ta1	ta2	ta3	ta4
P I	800–908	985–1108	769–877	508–600	385–431	261–261.5
P II	923–1000	969–1092	708–710	431–450	307–310	215–230
P III	892–908	1185–1308	1031–1100	585–600	446–450	292–300

TABLE 15. (Continued)

ta5	LR	BV	SV	BR
P I	184–185	0.78–0.86	1.88–1.96	2.11–2.38	4.2–4.4
P II	154–155	0.65–0.73	2.34–2.45	2.67–2.95	5.9–6.0
P III	154–160	0.84–0.90	2.20	1.93–2.01	5.8–6.2

FIGURES 16A–F. Ablabesmyia depaulai sp. n. : adult male. (A) Wing; (B) Thorax; (C–E) P1 (C), P2 (D), P3 (E); (F) Abdomen. FIGURES 17A–D. Ablabesmyia depaulai sp. n. : adult male. (A) Hypopygium: dorsal aspect; (B, C) Hypopygium: ventral aspect; (D) Aedeagal complex. FIGURES 18A–D. Ablabesmyia depaulai sp. n. : pupa. (A) Wing; (B) Thoracic horn; (C) Abdominal segments 1-5, with chaetotaxy of segment 4, right: ventral aspect, left: dorsal aspect; (D) Abdominal segments 6-8 and anal lobe with male genital sac, right: ventral aspect, left: dorsal aspect. FIGURES 19A–D. Ablabesmyia depaulai sp. n. : larva. (A) Head with chaetotaxy, right: ventral aspect, left: dorsal aspect; (B) Maxillary palp; (C) Ligula, paraligula and pecten hypopharyngis; (D) posterior parapod. Hypopygium ( Figs 17A–D ): tergite IX with 2 central setae; anal point partly covers the aedeagal complex; phallapodeme 64–66 µm long; sternapodeme 135–172 µm long; gonocoxite 183–185 µm long and 118–138 µm wide; gonostylus 172–175 µm long, with 6 apical teeth; tapered megaseta; HR 1.05–1.07; HV 2.41–2.43. Aedeagal complex: grooved aedeagal blade 46–51 µm long, base 11–15 µm, 9/10 5–6 µm; dorsal lobe club-shaped with fringe, 23–31 µm long and base 15–22 µm; lateral lobe and basidorsal lobe present. Female : unknown. Pupa (n = 3, unless otherwise stated): Dimensions : male abdomen 3.96–4.12 mm long. Coloration ( Fig. 18A–D ): exuviae yellow, wing sheath with spots. Cephalothorax ( Fig. 18A, B ): wing sheath 1.38–1.58 mm long and with complete veins; thoracic horn 513–600 µm long and 294–388 µm wide, lumen with hexagonal pattern, spines present only on the base, apex of aeropyle tube club-shaped; thoracic comb with 9–11 conical teeth. Abdomen ( Fig. 18C, D ): shagreen as small spines in arc, present in A I–VIII ; scar in A I 218–238 µm long; A IV chaetotaxy follow figure 18C, dorsal pore between setae D 1, and D 3 ; A VII with 4 lateral setae, LS 1 169–200 µm long; A VIII with 5 lateral setae, LS 1 92–125 µm long; anal lobe 469–513 µm long, base 413–438 µm wide, with 2 anal macrosetae LS 1 225–239 µm long, LS 2 294–317 µm long, inner and outer border with spines; genital sac shorter than the anal lobe, 338–348 µm long; GS/AL 0.66–0.74. Larva (n = 3, unless otherwise stated): Dimensions : head capsule 869–906 µm long and 625–688 µm wide. Coloration ( Fig. 19A–D ): head capsule yellow; postoccipital margin brown; ligula teeth brown; procercus brown; posterior parapod with 16 claws, 2 hooked claws brown and 14 simple claws yellow. Head Capsule ( Fig. 19A–C ): expanded, IC 0.70–0.76, postoccipital margin with central projections, chaetotaxy follow the figure 19A, dorsal setae S 12 present; AR 4.44–5.80, antennomeres 1,2-4 : 500–513; 88–113 µm long; ring organ in A 1 256–294 µm from the base; maxillary palp with 2 segments, palpomeres 1-2 : 46–55, 34–45 µm long; palpal formula 0+2, P 1 /P 2 1.14–1.64, A 1 /P 1 9.25–10.83, A 2 /P 1 1.56–2.03; mandible 146–169 µm long, with campaniform sensillum 20–32 mm from the base, A 1 /MD 3.03–3.51; dorsomental tooth 48–55 mm long and far apart 75 mm , pseudoradula slightly granulated and with homogeneous width; ligula 94–112 mm long and 63–68 mm wide, with 5 teeth in concave arch, It/O 0.78–0.83; Mt/O 0.72–0.78; It/Li 0.20–0.24; muscle attachment of ligula 23–31 µm long and 52–66 mm wide; bifid paraligula 48–49 µm long, pectin hypopharyngis with 15–17 teeth. Abdomen ( Fig. 19D ): procercus 112–129 µm long and 37–43 µm wide, 7 anal setae 663–750 µm long; supraanal seta simple and 406–500 µm long; supraanal seta lenght/ anal setae lenght 0.54–0.73; posterior parapods with 14 simple claws, with the serrated slightly sides and 2 hooked claws with the smooth sides, claw with truncated base present, tip of posterior parapods with spines.