<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 cordeiroi Neubern sp. n. ( Figs 14 , 15 ) Type material. Holotype : , Brazil , Amazonas , Manaus , Cueiras park ZF02, 60°06`55``W02°35`22``S , 14.vii.2008 , C.S.N. OliveiraLEIA . Paratypes : 2 ♂♂ , same data as holotype— LEIA ; 4 ♂♂ , same data as holotype— DZUP . Diagnostic characters. Ablabesmyia cordeiroi sp. n. differs from other species by the combination of the following characters: femora with 2 bands, middle tibia with 3 bands, m-cu towards to f-cu, R 3 apex close to C, gonostylus with 6 apical teeth, tapered megaseta, grooved aedeagal blade, dorsal lobe club-shaped with fringe, anal point absent. Etymology. Named after Dr. Danilo Pacheco Cordeiro, in recognition for his friendship and continuous support. Male (n = 5, unless otherwise stated): Dimensions : Total length 3.37–3.76 mm . Wing length 1.40–1.56 mm . Total length/wing length 2.34–2.41. Wing length/length of profemur 2.19–2.23. Coloration ( Figs 14A–F , 15A ): wings, thorax and abdomen follow figures 14A, 14B and 14F, respectively. Legs (Fig.): P I, P III —femora with 2 bands, tibiae with 3 bands; P II —femur with 3 bands, tibia with 3 bands. Ratio of bands, related tibiae and tarsomeres 1 follow table 12. Hypopygium: gonocoxite apex and gonostylus base brown. TABLE 12. Ratio of bands, related tibiae and tarsomeres 1 of A. cordeiroi sp. n. , ♂, (n=5).
A/B LMB/LBCB Y/Z
P I 0.49-0.50 0.86–0.91 0.29–0.32
P II 0.52 1.06–1.17 0.29–0.30
P III 0.48–0.49 0.98–1.00 0.29–0.30
FIGURES 14A–F. Ablabesmyia cordeiroi sp. n. : adult male. (A) Wing; (B) Thorax; (C–E) P1 (C), P2 (D), P3 (E); (F) Abdomen. FIGURES 15A–D. Ablabesmyia cordeiroi sp. n. : adult male. (A) Hypopygium: dorsal aspect; (B, C) Hypopygium: ventral aspect; (D) Aedeagal complex. Head : antenna with 14 flagellomeres; AR 1.66–1.73; apical flagellomere 106–118 µm and subapical seta 28– 31 µm long; temporals 40–44; postoculars 12; coronal triangle 277–308 µm long and base 91–101 µm; clypeus bearing 27–31 setae, 86–96 µm long and 100–111 µm wide; labrum with 3 setae, 87–97 µm long and 41–48 µm wide; tentorium 157–175 µm long; cibarial pump 292–305 µm long and orifice 80–83 µm from apex; palpomeres 1–5 : 40–46; 68–75; 119–134; 149–166; 239–266 µm long; palpomere 3 with sensilla capitata 29–33 µm from base. Wing ( Fig. 14A ): width/lenght 0.28–0.29; VR 0.73; C 1.23–1.38 mm long; Sc 0.46–0.52 mm long; m-cu 25–28 µm long and 370–412 µm from arculus; fr 504–563 µm from arculus; R 3 apex close to C; brachiolum with 3 setae; squama with 40–42 setae. Thorax ( Fig. 14B ): antepronotals 7–8; humerals 5; prealars 17–23; supraalar 1; scutelars 33–35. Legs ( Fig. 14C–E ): P I –apex of tibia 43–44 µm wide and with apical pectinated spur 57–62 µm long, spur ratio 0.61–0.65; tarsomeres 1–2 with 1 or 2 pseudospurs 55–66 µm long. P II –apex of tibia 47–50 µm wide and with 2 apical pectinated spurs 33–38 and 23–29 µm long, spurs ratio 0.57–0.60 and 0.56–0.64 respectively; tarsomeres 1–3 with 1 or 2 pseudospurs 55–67 µm long. P III –apex of tibia 46–47 µm wide and with 2 apical pectinated spurs 61–68 and 38–45 µm long, spurs ratio 0.63–0.70 and 0.66–0.80 respectively; tarsomeres 1–3 with 2 pseudospurs 65–75 µm long. Lengths and proportions of leg segments table 13. TABLE 13. Lengths (in µm) and proportions of leg segments in A. cordeiroi sp. n. , ♂, (n=5).
fe ti ta1 ta2 ta3 ta4
P I 631–703 661.5–737 523–583 354–393 261.5–291 200–223
P II 665–741 621–693 614 416 307 235
P III 631–703 661.5–737 583 395 291 222
TABLE 13. (Continued)
ta5 LR BV SV BR
P I 108–120 0.79–0.82 1.97–2.00 2.42–2.47 4.2–4.6
P II 127 0.89 1.89 2.33 5.0
P III 120 0.79 1.97 2.47 5.3
Hypopygium ( Fig. 15A–D ): tergite IX with 2 central setae; anal point absent; phallapodeme 47–51 µm long; sternapodeme 143–146 µm long; gonocoxite 130–145 µm long and 104–115 µm wide; gonostylus 122–135 µm long, with 6 apical teeth; tapered megaseta; HR 1.07–1.08; HV 2.68–2.79. Aedeagal complex: grooved aedeagal blade 43–48 µm long and base 11–12 µm, 9/106 µm; dorsal lobe club-shaped with fringe, 19–22 µm long and base 7–8 µm, lateral lobe and basidorsal lobe present. Female and immatures. Unknown.