<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 laurindoi Neubern sp. n. ( Figs 43–46 ) Type material. Holotype : ♂ with larval and pupal exuviae, Brazil , São Paulo , São Carlos , Mayaca lake , 47°33`01``W – 21°58`02``S , 13.vi.2004 , C.S.N. Oliveira — LEIA . Paratypes : ♂ , São Paulo , Estação Ecológica Jataí , Infernão lake , 47°65`00``W– 21°34`00``S , 08.viii.1994 , S. T . Strixino — LEIA ; 2 ♂♂ , same previous data— DZUP ; 2 ♂♂ , São Paulo , Estação Ecológica Jataí , Óleo lake , 47°52`00``W – 21°34`00``S , 10.i.2003 , S. T . Strixino — LEIA ; 6 ♂♂ , same previous data— DZUP ; 2 ♂♂ , São Paulo , Estação Ecológica Jataí , Óleo lake , 25.v.2005 , S. T . Strixino — DZUP ; ♂ with larval and pupal exuviae, São Paulo , Brotas , Dourada lake , 48°07`35``W – 22°17`12``S , 07.x.2003 , S. T . Strixino — LEIA . Diagnostic characters. A. laurindoi sp. n. differs from other species by the combination of the following characters: Male —tapered megaseta, dorsal lobe absent, aedeagal blade with broad base and aedeagal complex completely covered by anal point; Pupa —apex of aeropyle tube club-shaped, thoracic horn with spines in the outer lateral, dorsal pore in A IV between setae D 3 and D 5 , genital sac 360 µm long, wing sheath with spots and complete veins; Larva —head capsule elongated and without spots, ligula teeth in concave arch, dorsal pore present, posterior parapod with 3 brown claws, procercus brown and with 7 anal setae. Etymology. Named in honour of Dr. Fábio Laurindo da Silva, for his contribution to the knowledge of Neotropical Tanypodinae . Male (n = 5, unless otherwise stated): Dimensions : Total length 4.59–5.12 mm . Wing length 2.37–2.56 mm . Total length/wing length 1.86–2.05. Wing length/length of profemur 2.64–2.73. Coloration ( Figs 43A–E , 44A ): wing and thorax follow figures 43A and 43B. Legs: P I , P II, P III —femora with 3 bands, tibiae with 3 bands. Ratio of bands related tibiae and tarsomeres 1 follow table 32. Hypopygium: gonocoxite and gonostylus yellow. TABLE 32. Ratio of bands, related tibiae and tarsomeres 1 of A. laurindoi sp. n. , ♂, (n=5).

A/B	LMB/LBCB	Y/Z
P I	0.71–0.75	0.12–0.22	0.41–0.48
P II	0.66–0.67	0.14–0.30	0.48–0.54
P III	0.57–0.62	0.19–0.39	0.48–0.50

Head : antenna with 14 flagellomeres; AR 2.0–2.65; apical flagellomere 123–133 µm and subapical seta 28–33 µm long; temporals 39–41; postoculars 16; coronal triangle 120–145 µm long and base 108–110 µm; clypeus bearing 32–37 setae, 125–128 µm long and 98–125 µm wide; labrum with 3 setae, 119–125 µm long and 60–78 µm wide; tentorium 175–190 µm long; cibarial pump 320–340 µm long and orifice 55–73 µm from apex; palpomeres 1–5 : 58–75; 125–138; 143–158; 145–150; 290–380 µm long; palpomere 3 with sensilla capitata 30–53 µm from base. FIGURES 43A–E. Ablabesmyia laurindoi sp. n. : adult male. (A) Wing; (B) Thorax; (C–E) P1 (C), P2 (D), P3 (E). FIGURES 44A–D. Ablabesmyia laurindoi sp. n. : adult male. (A) Hypopygium: dorsal aspect; (B, C) Hypopygium: ventral aspect; (D) Aedeagal complex. FIGURES 45A–C. Ablabesmyia laurindoi sp. n. : pupa. (A) Thoracic horn; (B) Abdominal segments 1-5, with chaetotaxy of segment 4, right: ventral aspect, left: dorsal aspect; (C) Abdominal segments 6-8 and anal lobe with male genital sac, right: ventral aspect, left: dorsal aspect. FIGURES 46A–E. Ablabesmyia laurindoi sp. n. : larva. (A) Head with chaetotaxy, right: ventral aspect, left: dorsal aspect; (B) Maxillary palp; (C) Dorsomental tooth and pseudoradula; (D) Ligula, paraligula and pecten hypopharyngis; (E) posterior parapod. Wing ( Fig. 43A ): width/lenght 0.28–0.29; VR 0.82–1.24; C 2.18–2.34 mm long; Sc 1.31–1.43 mm long; m-cu 49 µm long and 660–740 µm from arculus; fr 740–910 µm from arculus; R 3 apex close to C; brachiolum with 3 setae; squama with 50 setae. Thorax ( Fig. 43B ): antepronotals 10; humerals 7; prealars 18; supraalar 1; scutelars 21. Legs ( Fig. 43C–E ): P I —apex of tibia 60–65 µm wide and with apical pectinated spur 63–95 µm long, spur ratio 0.69–0.84; tarsomeres 1–2 with 1 or 2 pseudospurs 64–77 µm long. P II —apex of tibia 55–60 µm wide and with 2 apical pectinated spurs 65–85 and 52.5–63 µm long, spur ratio 0.60–0.74 and 0.53–0.62 respectively; tarsomeres 1–3 with 2 or 3 apical pectinated pseudospurs 77–82 µm long. P III –coxa with 6 central microsetae; apex of tibia 57.60– 65 µm wide and with 2 apical pectinated spurs 63–73 and 55–65 µm long, spurs ratio 0.69–0.72 and 0.67–0.75 respectively. Lengths and proportions of leg segments table 33. TABLE 33. Lengths (in µm) and proportions of leg segments in A. laurindoi sp. n. , ♂, (n=5). fe ti ta1 ta2 ta3 ta4 P I 875–968 1125–1156 890–969 570–640 440–475 290–300 P II 969–1062 1078–1125 906–922 500–511 390–392 260–262 P III 906–1000 1312.5–1469 1172–1219 620–650 480–481 310–311 TABLE 33. (Continued)

ta5	LR	BV	SV	BR
P I	170–180	0.78–0.84	1.94–1.98	2.19–2.33	1.6–1.7
P II	170–173	0.82–0.86	2.25–2.28	2.28–2.29	1.6–1.8
P III	170–171	0.83–0.91	2.15–2.29	1.87–2.03	1.8–1.8

Hypopygium ( Fig. 44A–D ): tergite IX with 4 central setae; anal point completely covers the aedeagal complex; phallapodeme 7.,50–75 µm long; sternapodeme 130–143 µm long; gonocoxite 155–163 µm long and 103 µm wide; gonostylus 178–188 µm long, with 4–5 apical teeth; tapered megaseta; HR 0.85–0.92; HV 2.56–2.89. Aedeagal complex: grooved aedeagal blade 45–50 µm long, base 23–28 µm, 9/10 7.5 µm; dorsal lobe absent, lateral lobe and basidorsal lobe present. Female : unknown. Pupa (n = 2, unless otherwise stated): Dimensions : male abdomen 4.12–4.18 mm long. Coloration ( Fig. 45A–C ): exuviae brown, wing sheath with spots. Cephalothorax ( Fig. 45A ): wing sheath 1.65–1.70 mm long and with complete veins; thoracic horn 575–579 µm long and 240 µm wide, lumen with hexagonal pattern, spines present on the base and sides, apex of aeropyle tube club-shaped; thoracic comb with 14 conical teeth. Abdomen ( Fig. 45B, C ): shagreen absent; scar in A I 225 µm long; A IV chaetotaxy follow figure 45B, dorsal pore between setae D 3 and D 5 ; A VII with 4 lateral setae, LS 1 140 µm long; A VIII with 5 lateral setae, LS 1 98 µm long; anal lobe 469–471 µm long, base 110 µm wide, with 2 anal macrosetae LS 1 213 µm long, LS 2 268 µm long, outer side with spines; genital sac shorter than the anal lobe, 360 µm long; GS/AL 0.77. Larva (n = 2, unless otherwise stated): Dimensions : head capsule 1000 µm long and 570 µm wide. Coloration ( Fig. 46A–E ): head capsule yellow; postoccipital margin brown; ligula teeth brown; procercus yellow; ligula teeth brown, procercus brown, posterior parapod with 16 claws, 3 hooked claws brown and 13 simple claws yellow. Head Capsule ( Fig. 46A–D ): elongated, IC 0.63, chaetotaxy follow the figure 46A; AR 4.61, antennomeres 1,2-4 : 605, 131 µm long; ring organ in A 1 320 µm from the base; maxillary palp with 2 segments, palpomeres 1-2 : 60 and 45 µm long; palpal formula 0+2, P 1 /P 2 1.33, A 1 /P 1 10.08, A 2 /P 1 1.93; mandible 155 µm long, with campaniform sensillum 33 mm from the base, A 1 /MD 3.90; dorsomental tooth 40 mm long and far apart 80 mm , pseudoradula slightly granulated and with homogeneous width; ligula 107.5 mm long and 75 mm wide, with 5 teeth in concave arch, It/O 0.91; Mt/O 0.82; It/Li 0.23; muscle attachment of ligula 37.5 µm long and 91 mm wide; bifid paraligula 57.5 µm long, pectin hypopharyngis with 18 teeth. Abdomen ( Fig. 46E ): procercus 135 µm long and 34 µm wide, 7 anal setae 825 µm long; supraanal seta simple and 425 µm long; supraanal seta lenght/ anal setae lenght 0.52; posterior parapods with 13 simple claws with the serrated sides and 3 hooked claws, with the smooth sides, claw with truncated base present, tip of posterior parapods with spines.