Ablabesmyia infumata (Edwards)

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 : 68

Ablabesmyia infumata (Edwards)

( Figs 39 , 40 )

Pentaneura infumata Edwards, 1931: 249 (description of adult male)

Ablabesmyia infumata Fittkau, 1962: 417 (redescription)

Type material. Holotype: ♂, Chile, Llanquihue, 1931, F.W. Edwards — BMNH . Paratypes: 2♂♂, same data as holotype— BMNH .

Diagnostic characters. A. infumata differs from other species by the combination of the following characters. Male: middle tibia with 4 bands, mcu before r-m, R 3 apex close to C, gonostylus apex with 12 apical teeth; tapered megaseta, truncated dorsal lobe.

Male (n = 2, unless otherwise stated): Dimensions: Total length 4.0 mm. Wing length 3.30 mm. Total length/ wing length 1.21.

Coloration ( Figs 39A–E , 40A ): wings, thorax and abdomen follow figures 39A, 39B and 39D respectively. Legs: P II —femur with 3 bands, tibia with 4 bands. Ratio of bands, related tibiae and tarsomeres 1 follow table 28. Hypopygium: gonocoxite and gonostylus yellow.

Head: antenna with 14 flagellomeres; AR 2.58; apical flagellomere 121 µm long and subapical seta 31 µm long; temporals 56; postoculars 19; coronal triangle 162 µm long and base 110 µm; clypeus bearing 31 setae, 115 µm long; labrum with 3 setae, 122 µm long and 60 µm wide; tentorium 197 µm long; cibarial pump 323 µm long and orifice 69 µm from apex; palpomeres 1–5: 55; 115; 140; 123; 177 µm long; palpomere 3 with sensilla capitata 58 µm from base.

Wing ( Fig. 39A ): Sc beyond fr; m-cu before r-m; R 3 apex close to C.

Thorax ( Fig. 39B, C ): antepronotals 15; humerals 6; prealars 29; supraalar 1; scutelars 37.

Legs ( Fig. 40D ): P II —apex of tibia 56 µm wide and with 2 apical pectinated spurs 64 and 52 µm long, spur ratio 0.57 and 0.68 respectively; tarsomeres with 2 or 8 apical pseudospurs 55–67 µm long. Lengths and proportions of leg segments table 29.

1–3

Hypopygium ( Fig. 40A–D ): tergite IX with 2 central setae; point covers completely the aedeagal complex; phallapodeme 55–59 µm long; sternapodeme 122–140 µm long; gonocoxite 149–178 µm long and 85–122 µm wide; gonostylus 166–175 µm long, with 12 apical teeth; tapered megaseta; HR 0.90–1.02. Aedeagal complex: grooved aedeagal blade 35–49 µm long, base 11 µm, 9/10 6–7 µm; truncated dorsal lobe, 18–23 µm long and base 15–16 µm; lateral lobe and basidorsal lobe present.

Female and immatures: unknown.

Figures

FIGURES 39A–E. Ablabesmyia infumata (Edwards): holotype, adult male. (A) Wing; (B) Thorax, dorsal view; (C) Thorax, lateral view; (D) Abdomen; (E) Geral view.

FIGURES 40A–D. Ablabesmyia infumata (Edwards): holotype, adult male. (A) Hypopygium: dorsal aspect; (B) Hypopygium: ventral aspect; (C) Aedeagal complex; (D) P2.