Neozavrelia, Goetghebuer & Thienemann, 1941

Orel, Oksana V., 2021, Revision of the genus Neozavrelia Goetghebuer, Thienemann, 1941 (Diptera Chironomidae) from Eastern Siberia and the Russian Far East, with the description of new species, Zootaxa 4938 (3), pp. 251-297 : 254

Key to Neozavrelia pupae

1. Thoracic horn fusiform, with pointed apex ( Figs 42 , 122 ). Shagreen present on the tergites II–III. Conjunctives with setae... 2

- Thoracic horn a different shape. Shagreen on the tergite III poorly developed. Conjunctives without setae................ 3

2. Thoracic horn length about 120 μm; base round ( Figs 42 , 49 ). Anal lobe with 16 lamelliform setae ( Fig. 52 ). Tergite VII without shagreen........................................................................... N. kuzmichikha sp. nov.

- Thoracic horn length about 280 μm; base oval ( Figs 122 , 127–128 ). Anal lobe with 4–6 lamelliform setae ( Fig. 130 ). Tergite VII with pair bands of pale shagreen in proximal part................................... N. yakuefea (Sasa & Suzuki)

3. Thoracic horn triangular shape ( Figs 22 , 31 ). Anal segment length <120 μm and width <115 μm ( Figs 33, 34 )................................................................................................ N. kedrovaya sp. nov.

- Thoracic horn oval or elongated-oval shape ( Figs 62–64 , 73 ). Anal segment length>120 μm and width>115 μm ( Fig. 76 )..................................................................................... N. nadezhdae sp. nov.

Figures

FIGURES 39–42. Details of the structure of the male of Neozavrelia kuzmychikha sp. nov. 39—maxillar palp; 40—total view of hypopygium; 41—superior volsella, dorsal view; 42—thoracic horn. Scale bar 50 μm.

FIGURES 120–122. Details of the structure of hypopygium the male of Neozavrelia yakuefea (Sasa, Suzuki, 2000). 120— maxillary palp; 121—total view of hypopygium, dorsal view; 122—thoracic horn. Scale bar 50 μm.

FIGURES 49–52. Details of the structure of pupa of Neozavrelia kuzmychikha sp. nov. 49— thoracic horn and precorneals; 50—conjunctives III/IV; 51—tergites V–VI; 52—anal lobes. Scale bar 50 μm.

FIGURES 127–131. Details of the structure of pupa of Neozavrelia yakuefea (Sasa, Suzuki). 127—thorax; 128—thoracic horn; 129—tergites II–IX; 75—lateral setae on segments III–IV; 130— anal combs and tergite IX. Scale bar 50 μm.

FIGURES 9–22. Details of the structure of the male of Neozavrelia kedrovaya sp. nov. 9—maxilar palp; 10—total view of hypopygium; 11, 12—anal point; 13—superior volsella; 16–18—gonostylus and inferior volsella; 19–21—tergite IX, lateral view; 22—thoracic horn. Scale bar 50 μm.

FIGURES 29–34. Details of the structure of pupa of Neozavrelia kedrovaya sp. nov. 29—frontal apotome; 30—thorax; 31— thoracic horn and precorneals; 32—tergites II–V; 33—tergites VII–IX; 34—anal combs and tergite IX. Scale bar 50 μm.

FIGURES 60–64. Details of the structure of the male of Neozavrelia nadezhdae sp. nov. 60—total view of hypopygium; 61—lateral view of hypopygium; 62–64—thoracic horn. Scale bar 50 μm.

FIGURES 71–76. Details of the structure of pupa of Neozavrelia nadezhdae sp. nov. 71—frontal apotome; 72—thorax; 73— thoracic horn and precorneals; 74—tergites II–III; 75—tergites IV–V; 76—anal combs and tergite IX. Scale bar 50 μm.