Macropelopia, Thienemann, 1916

Dantas, Galileu P. S., Siri, Augusto & Hamada, Neusa, 2023, A new species of Macropelopia Thienemann, 1916 (Diptera: Chironomidae) from Southern Brazil, Zootaxa 5306 (5), pp. 551-562 : 561

Key to males of Neotropical species of Macropelopia

1a. Gonostylus slender ( Andersen 2018, Figs. 5–6 ); Chile........................... M. (Bethbilbeckia) chilensis Andersen

1b. Gonostylus relatively stout, broad basally and apically tapered ( Silva & Pinho 2020, Fig. 1G ; Fig. 2D in the present study).. ................................................................................................... 2

2a. Wing membrane translucid, darkened only around Cu, MCu, RM and bases of R 1, R 2+3 and R 4+5; tibiae dark brown only in apex and base; R 3 not reaching costa; Argentina..................................... M. (s. str.) patagonica Silva & Pinho

2b. Wing membrane with dark-brown spots; tibiae with several dark-brown bands; R 3 reaching costa; Brazil........................................................................................... M. (s. str.) multifasciata sp. nov.

Figures

FIGURE 1. Environment where the immature stages of M. multifasciata sp. nov. were collected.

FIGURE 2. Macropelopia multifasciata sp. nov. Adult male, (A) Head. (B) Thorax. (C) Wing. (D) Hypopygium.Adult female, (E) Genitalia.

FIGURE 5. Macropelopia multifasciata sp. nov., larva. (A) Head capsule. (B) Chaetotaxy of the head, dorsal. (C) Chaetotaxy of the head, ventral. (D) Basal multi-branched seta of procercus. (E) Posterior parapod apex.

FIGURE 6. Macropelopia multifasciata sp. nov., larva. (A) Antenna. (B) Maxillary palp. (C) Mandible. (D) Dorsomentum. (E) M appendage (F) Ligula and paraligula.