Ablabesmyia rafaeli Neubern, 2013

Oliveira, Caroline Silva Neubern De, Silva, Mário Antonio Navarro Da & Gessner, Alaíde Aparecida Fonseca, 2013, <p> <strong> Neotropical <em> Ablabesmyia </ em> Johannsen (Diptera: Chironomidae, Tanypodinae) – Part I </ strong> </ p>, Zootaxa 3733 (1), pp. 1-123 : 106-109

Ablabesmyia rafaeli Neubern sp. n.

( Figs 64 , 65 )

Type material. Holotype: ♂, Brazil, São Paulo, Iporanga, Intervales Estadual Park , 48°35`34``W – 24°35`09``S, 28.iv.2001, M.A. Morraye — LEIA . Paratype: ♂, Santa Catarina, Ipuaçu , 52°27`18``W – 26°37`51``S, 08.x.2004, L.C. Pinho — DZUP .

Diagnostic characters. A. rafaeli sp. n. differs from other species by the combination of the following characters: femora with 4 bands, tergite VIII brown, tapered megaseta, grooved aedeagal blade, short dorsal lobe with fringe.

Etymology. Named after Rafael Calil Bueno da Costa, in recognition for his love and continuous support.

Male (n = 2, unless otherwise stated): Dimensions: Total length 4.0– 4.26 mm. Wing length 1.84–2.31 mm. Total length/wing length 1.84–2.18. Wing length/length of profemur 2.45–2.72.

Coloration ( Figs 64A–E , 65A ): wings and abdomen follow figures 64A and 64E, respectively. Legs: P I —femur with 4 bands, tibia with 5 bands, the third small and incomplete band; P II, P III —femora with 4 bands, tibiae with 4 bands. Ratio of bands, related tibiae and tarsomeres 1 follow table 48. Hypopygium: gonocoxite apex brown and gonostylus yellow.

Head: antenna with 14 flagellomeres; AR 1.99–2.10; apical flagellomere 100–130 µm and subapical seta 30 µm long; temporals 47–48; postoculars 14; coronal triangle 118 µm long and base 100–105 µm; clypeus bearing 40–45 setae, 103–125 µm long and 93–105 µm wide; labrum with 3–4 setae, 103–108 µm long and 73–75 µm wide; tentorium 163–187 µm long; cibarial pump 340 µm long and orifice 57.5 µm from apex; palpomeres 1–5: 55– 70; 103–128; 135–165; 150–180; 285 µm long; palpomere 3 with sensilla capitata 38–43 µm from base.

Wing ( Fig. 64A ): width/lenght 0.25–0.27; VR 0.80–0.82; C 1.68–2.14 mm long; Sc 0.96–1.25 mm long; m-cu 38 µm long and 520–630 µm from arculus; fr 630–781 µm from arculus; R 3 apex close to C; brachiolum with 4 setae; squama with 43–47 setae.

Thorax: antepronotals 16–15; humerals 10–13; prealars 25; supraalar 1; scutelars 30–31.

Legs ( Fig. 64B–D ): P I —apex of tibia 53–58 µm wide and with apical pectinated spur 59–60 µm long, spur ratio 0.60–0.67; tarsomeres 1 with 1 pseudospur 55 µm long. P II —apex of tibia 55–65 µm wide and with 2 apical pectinated spurs 54–60 and 50–55 µm long, spurs ratio 0.50–0.54 and 0.47–0.52 respectively; tarsomeres 1–3 with 1 or 2 pseudospurs 44–56 µm long. P III —coxa with 6 central microsetae; apex of tibia 58–59 µm wide and with 2 apical pectinated spurs 65–70 and 33–47 µm long, spurs ratio 0.62–0.64 and 0.38–0.49 respectively; tarsomeres 1–2 with 1 or 2 pseudospurs 60–70 µm long. Lengths and proportions of leg segments table 49.

Hypopygium ( Figs 65A–D ): tergite IX with 2 central setae; anal point covers partially the aedeagal complex; phallapodeme 48–55 µm long; arched sternapodeme 105 µm long; gonocoxite 128–150 µm long and 85–100 µm wide; gonostylus 163 µm long, with 4–5 apical teeth; tapered megaseta; HR 0.78–0.92; HV 2.48–2.63. Aedeagal complex: grooved aedeagal blade 40–57 µm long and base 10–13 µm, 9/10 7.5 µm; dorsal lobe with fringe 10–23 µm long, base 15–20 µm; lateral lobe and basidorsal lobe present.

Female and immatures: unknown.

Figures

FIGURES 64A–E. Ablabesmyia rafaeli sp. n.: adult male. (A) Wing; (B–D) P1 (B), P2 (C), P3 (D); (E) Abdomen.

FIGURES 65A–D. Ablabesmyia rafaeli sp. n.: adult male. (A) Hypopygium: dorsal aspect; (B, C) Hypopygium: ventral aspect; (D) Aedeagal complex.