Styringomyia, LOEW, 1845

Theischinger, Günther, D, Zacariah & Martin, John, 2018, The genus Styringomyia LOEW in Australia (Diptera: Tipuloidea: Limoniidae), Linzer biologische Beiträge 50 (2), pp. 1587-1633 : 1606

Key to the species of Styringomyia known from Australia (males only)

1 Gonocoxites without distinct apical spine ( Fig. 66 ); femora and tibiae rather pale without distinct incomplete dark rings or tip; no distinct wing spots .................... kimberley

- Gonocoxites with distinct apical spine ( Figs 67-70, 74 , 75, 77-81 ); femora and tibiae rather dark or pale with distinct incomplete dark rings or tip ..............................................2

2 Gonocoxites with 3 spines, 1 apical, 2 dorsal; gonostyli including large elements with abundant retrose setae ( Fig. 67 )............................................................................... danbulla

- Gonocoxites with 1 or 2 spines, none of them dorsal; gonostyli not including elements with abundant retrose setae .................................................................................................3

3 Gonocoxites with 2 spines, 1 apical, 1 ventral ( Figs 68-70 )................................................4

- Gonocoxites with apical spine only.....................................................................................6

4 Gonocoxites plump, hardly longer than subapical spine ( Fig. 68 ); femora and tibiae rather pale with distinct incomplete dark rings; wings with indistinct spots ................ naso

- Gonocoxites slender, more than twice as long as subapical spine ( Figs 69, 70 ); pro and meso femora and tibiae rather dark without distinct darker rings; wings partly distinctly darkened but without spots..................................................................................................5

5 Apical spine of gonocoxite basally not expanded ( Fig. 69 )..................................... aterrima

- Apical spine of gonocoxite basally expanded ( Fig. 70 )................................... terraereginae

6 Apex of sternite 9 simple and narrow; gonostyli with long, slender whip-like element ( Fig. 71 )....................................................................................................................... flagro

- Apex of sternite 9 complex, bilobed or trifid; gonostyli without long, slender whip-like element ( Figs 72, 73 )...........................................................................................................7

7 Apex of sternite 9 bilobed ( Fig. 72 ) femora and tibiae dark without distinct rings or pale with distinct incomplete rings......................................................................................8

- Apex of sternite 9 trifid ( Fig. 73 ); femora and tibiae pale with apex darker......................13

8 Gonocoxites without mesal expansion, their basal two thirds plump, the apical third digitate ( Fig. 74 ); femora and tibiae dark without distinctly darker incomplete rings; wings not spotted............................................................................................................ rose

- Gonocoxites subconical with mesal expansion ( Figs 23 , 75-78 ); generally, femora and tibiae pale with darker incomplete rings and wings spotted ................................................9

9 Mesal expansion of gonocoxites very large, in ventral view obscuring much of the gonostyli (see Fig. 23 )..................................................................................... edwardsorum

- Mesal expansion of gonocoxites of moderate size, in ventral view not obscuring much of gonostyli ( Figs 75-78 )...................................................................................................10

10 Prominent element of gonostyli with several distinct long setae along posterior margin ( Fig. 75 ).................................................................................................................. bancrofti

- Prominent element of gonostyli without distinct long setae along posterior margin ( Figs 76-78 )................................................................................................................................11

11 Prominent element of gonostyli double-winged, gutter–shaped ( Fig. 76 ).............. baroalba

- Prominent element of gonostyli mesally pointed or rounded ( Figs 77, 78 ) .......................12

12 Prominent element of gonostyli mesally pointed ( Fig. 77 ).......................................... remex

- Prominent element of gonostyli mesally rounded ( Fig. 78 ) .......................................collessi

13 Less than basal two thirds of gonocoxites expanded; median process of sternite 9 long and narrow ( Fig. 79 )............................................................................................... coronata

- Basal three fourths of gonocoxites significantly expanded; median process of sternite 9 moderately long and wide or short and flat ( Figs 80, 81 ) ..................................................14

14 Median process of sternite 9 moderately long and wide ( Fig. 80 )........................ bipunctata

- Median process of sternite 9 short and flat ( Fig. 81 ) .............................................. williamsi

Figures

Figs 66-74. Styringomyia sp., male, hypopygial details: (66) S. kimberley; (67) S. danbulla; (68) S. naso; (69) S. aterrima; (70) S. terraereginae; (71) S. flagro; (72) S. remex; (73) S. coronata; (74) S. rose.

Figs 75-81: Styringomyia sp., male, hypopygial details or hypopygium: (75) S. bancrofti; (76) S. baroalba; (77) S. remex; (78) S. collessi; (79) S. coronata; (80) S. bipunctata; (81) S. williamsi.

Figs 23-25: Styringomyia edwardsorum nov.sp., terminalia: (23, 24) male: (23) ventral; (24) dorsal; (25) female, lateral.