Ablabesmyia bianulata Paggi

Siri, Augusto & Paggi, Analía C., 2010, A new species of the genus Ablabesmyia Johannsen from the Neotropics and description of the pupa of Ablabesmyia bianulata Paggi (Diptera: Chironomidae: Tanypodinae), Zootaxa 2386, pp. 49-58 : 55-56

Ablabesmyia bianulata Paggi

Ablabesmyia bianulata Paggi, 1987: 329

Material examined. Argentina. Neuquen, Ramos Mexía reservoir, male associated with pupal exuviae ( ILPLA), 06-XI-1983, kick sample, F. Kaisin. Neuquen, Mari Menuco lake, 5 males (Paratypes), 19-III- 1978, S. Coscarón.

Emended diagnosis. Male diagnosis of Ablabesmyia bianulata Paggi should be emended as follows: antenna with 14 flagellomeres; tibial comb of hind leg with 5–7 spiniform setae; number of setae on tergite IX = 2–3.

Aedeagal complex redescription: BL ( Fig. 14 ) clearly curved, 25–30, 29 long, width 12–18, 16 at base, 6–10, 8 at 1/4, 6–8, 7 from 1/2 to 3/4, 2 at 9/19; BL produced beyond BDL (BL / BDL ratio: 1.11–1.20, 1.17). The shape of DL is cylindrical with abundant long and thin terminal filaments. LF long and wavy. LL absent.

Pupa (n = 1) ( Figs 29–32 )

Total length 4.92 mm.

Cephalothorax. Frontal apotome as in Fig. 29 . Wing pad with distinct veins as in Fig. 30 . Thoracic horn 556 long, reticulation distinct, with external spines. Thoracic comb with 12 cylindrical spines ( Fig. 31 ) plus short spines near the insertion of the thoracic horn.

Abdomen. Shagreen with very evident simple spines in arch. Chaetotaxy and coloration pattern Fig. 32 . Anal lobe 457 long, with short spinules bordering the insertion of the first lateral setae. Male genital sac 374 long. Position of first lateral setae / segment lenght 0.35 on segment VII; 0.35 on

segment VIII; 0.42 on Anal lobe.

Figures

FIGURE 14. Comparison of aedeagal complex of Ablabesmyia platensis n. sp. (left) and Ablabesmyia bianulata Paggi (right). BL: larger arrow; DL: shorter arrow; BDL: arrowhead. Scale bar = 20 Μm.

FIGURES 29 – 32. Pupa of Ablabesmyia bianulata Paggi. 29: frontal apotome, 30: cephalothorax, 31: thoracic comb, 32: tergite and sternite of abdominal IV segment. Scale bars = 20 Μm for Fig. 29, 100 Μm for Figs. 30 – 32.