Nilothauma Kieffer

Mendes, Humberto Fonseca & Andersen, Trond, 2009, Neotropical Nilothauma Kieffer, 1921, with the description of thirteen new species (Diptera: Chironomidae), Zootaxa 2063, pp. 1-45 : 13

Key to the pupae of Neotropical Nilothauma Kieffer

1. Thoracic horn with 5–6 branches; tergite VII with anterior and posterior shagreen patches or only posterior shagreen patch; tergite VIII with anterior and posterior shagreen patches. ................................................................................ 2

- Thoracic horn with 8 branches; tergites VII–VIII with anterior shagreen patches only ( Soponis 1987: 15, Figs 6–11 ). ............................................................................................................................ Nilothauma reissi (Soponis) comb. n.

2. Tergite VIII with anterior and posterior patches of shagreen connected ..................................................................... 3

- Tergite VIII with anterior patch of shagreen completely separated from posterior patch ( Wiedenbrug 2000: 248, Fig. 96) ................................................................................................................ Nilothauma -complex spec. 1 Wiedenbrug

3. Tergite VIII with anterior and posterior patches of shagreen connected by narrow band of fine shagreen. ............... 4

- Tergite VIII with anterior and posterior patches of shagreen completely fused ( Figs 45–48 ). ..................................... ................................................................................................................................... Nilothauma matogrossense sp. n.

4. Tergite VII with anterior and posterior patches of shagreen connected by narrow band of fine shagreen ( Figs 75–79 ). ............................................................................................................................................................ Nilothauma sp. 1.

- Tergite VII with posterior patch of shagreen only ( Figs 13–16 ). ................................. Nilothauma aripuanense sp. n.

Figures

FIGURES 6 – 8. Nilothauma amazonense sp. n., male. 6 — dorsal aspect of hypopygium. 7 — hypopygium with tergite IX and anal point removed, dorsal view left, ventral view right. 8 — median and superior volsella, dorsal view.

FIGURES 9 – 12. Nilothauma aripuanense sp. n., male. 9 — dorsal aspect of hypopygium. 10 — hypopygium with tergite IX and anal point removed, dorsal view left, ventral view right. 11 — superior volsella, dorsal view. 12 — median volsella, dorsal view.

FIGURES 45 – 48. Nilothauma matogrossense sp. n., pupa. 45 — thorax, lateral view. 46 — thoracic horn. 47 — tergites I – VII. 48 — tergite VIII and anal lobe.

FIGURES 75 – 79. Nilothauma sp. 1, pupa. 75 – thorax, lateral view. 76 – frontal apotome. 77 – thoracic horn. 78 – tergites I – VII. 79 – tergite VIII and anal lobe.

FIGURES 13 – 16. Nilothauma aripuanense sp. n., pupa. 13 — thorax, lateral view. 14 — thoracic horn. 15 — tergites I – VII. tergite VIII and anal lobe.