Parapsectra

Giłka, Wojciech & Jażdżewska, Natalia, 2010, A systematic review of the genus Parapsectra Reiss (Diptera: Chironomidae: Tanytarsini) with description of a new species from Poland, Zootaxa 2350, pp. 1-21 : 18-19

Key to males of Parapsectra

1. Anal point acute ( Fig. 15 ). Superior volsella with slender apical prolongation and concave anteromedian margin ( Figs 15, 17 ) ..................................................................................................................................................... P. mendli

-. Anal point with rounded, transversely cut or slightly concave apex ( Figs 8 , 12 , 19 , 22 , 26 , 30 ). Superior volsella without apical prolongation and/or with straight or convex anteromedian margin ( Figs 10 , 13 , 20 , 23 , 27 , 30 ). ....... 2

2. Wing with FCu well distal of RM ( Fig. 5 ). Lateral teeth of anal tergite present ( Fig. 22 ). Superior volsella sinuous, digitus absent ( Figs 22, 23 ). Median volsella with sparse and large, spoon-shaped lamellae ( Fig. 24 ). Inferior volsella long and strongly curved, L-shaped ( Figs 22 , 39 ). .............................................................................. P. styriaca

-. Wing with FCu very slightly distal of RM ( Fig. 1 ), under RM ( Figs 2, 4 , 7 ) or proximal of RM ( Fig. 6 ). Lateral teeth of anal tergite absent. Superior volsella never sinuous, digitus present. Median volsella with lamellae never as above ( Figs 11 , 14 , 21 , 28 , 31 ). Inferior volsella never L-shaped, short when bent ( Figs 32–35, 38, 40, 41 ). ...................... 3

3. Median volsella with falciform lamellae ( Figs 28 , 31 )................................................................................................. 4

-. Median volsella with spoon-shaped lamellae ( Figs 11 , 14 , 21 ).................................................................................... 5

4. Antenna with 6 or 7 flagellomeres ( Fig. 25 ). Wing reduced ( Fig. 6 ). Superior volsella elongated ( Figs 26, 27 ). Median volsella with slender falciform and fusiform lamellae ( Fig. 28 ). Inferior volsella reaching beyond half length of gonostylus, evenly tapering to apex ( Figs 26 , 40 ). ............................................................................... P. uliginosa

-. Antenna with 13 flagellomeres, with distal flagellomeres slightly separated ( Fig. 29 ). Wing well developed ( Fig. 7 ). Superior volsella short ( Fig. 30 ). Median volsella with broad falciform and lanceolate lamellae ( Fig. 31 ). Inferior volsella reaching at most half length of gonostylus, with abruptly swollen head-like distal half ( Figs 30 , 41 ) ............ ...................................................................................................................................................................... P. wagneri

5. Anal lobe of wing strongly reduced, RM very short, membrane below An with sparse macrotrichia ( Fig. 2 ). Dark

brown to fuscous body ............................................................................................................................. P. chionophila -. Anal lobe of wing well developed, RM long, membrane below An with dense macrotrichia ( Figs 1, 4 ). Brownishgreen body..................................................................................................................................................................... 6 6. Stem of median volsella with large lamellae placed posteromedially ( Fig. 11 ). Inferior volsella bent at base, with transverse protrusion ( Figs 8 , 32, 33 ) ................................................................................................ P. b u m a s t a sp. n.

-. Stem of median volsella with small lamellae placed apically ( Fig. 21 ). Inferior volsella short and straight, without transverse protrusion ( Fig. 19 , 38 ) .................................................................................................................... P. nana

Figures

FIGURES 15 – 18. Parapsectra mendli, male. 15: hypopygium, 16: gonostylus (variation), 17: superior volsella and digitus (variation), 18: median volsella (magnified x 2 in comparison with hypopygium).

FIGURES 8 – 11. Parapsectra bumasta sp. n., male. 8: hypopygium, 9: gonostylus (variation), 10: superior volsella and digitus (variation), 11: median volsella (magnified x 2 in comparison with hypopygium).

FIGURES 12 – 14. Parapsectra chionophila, male. 12: hypopygium, 13: superior volsella and digitus (variation), 14: median volsella (magnified x 3 in comparison with hypopygium).

FIGURES 19 – 21. Parapsectra nana, male. 19: hypopygium, 20: superior volsella and digitus (variation), 21: median volsella (magnified x 2 in comparison with hypopygium).

FIGURES 22 – 24. Parapsectra styriaca, male. 22: hypopygium, 23: superior volsella (variation), 24: median volsella (magnified x 2 in comparison with hypopygium).

FIGURES 25 – 28. Parapsectra uliginosa, male. 25: antenna (variation), 26: hypopygium, 27: superior volsella and digitus (variation), 28: median volsella (magnified x 3 in comparison with hypopygium).

FIGURES 29 – 31. Parapsectra wagneri, male. 29: flagellomeres 8 – 13 of antenna (holotype), 30: hypopygium, 31: median volsella (magnified x 1.5 in comparison with hypopygium).

FIGURES 5 – 7. Wing of male. 5: Parapsectra styriaca, 6: P. u l i g i n o s a (paratypes, variation), 7: P. wagneri (holotype).

FIGURES 32 – 41. Hypopygial inferior volsella and inner margin of coxite. 32, 33: Parapsectra bumasta sp. n.; 34, 35: P. chionophila; 36, 37: P. m e n d l i; 38: P. nana; 39: P. styriaca; 40: P. uliginosa; 41: P. wagneri.

FIGURES 1 – 4. Wing of male. 1: Parapsectra bumasta sp. n., 2: P. chionophila, 3: P. m e n d l i, 4: P. nana.