Leptodromia Sinclair & Cumming, 2000

Barros, Luana M., Sinclair, Bradley J., De Freitas-Silva, Rafael A. P. & Ale-Rocha, Rosaly, 2024, Revision of the genus Leptodromia Sinclair & Cumming, 2000 (Diptera: Hybotidae: Ocydromiinae), with the description of six new species, Records of the Australian Museum 76 (3), pp. 133-150 : 135

Key to species of Leptodromia Sinclair & Cumming, 2000

1 Pleura with broad, brown transverse upper stripe from lateral margin of antepronotum to laterotergite (Fig. 23) .......................................... L. lineata sp. nov.

—— Pleura with vertical spot on anepisternum ( Fig. 27 ), or without dark markings ( Fig. 1 ) or pleura mostly completely darkly coloured ( Fig. 9 ) ........................................................................................................................ 2

2 Scutum with dark spots or stripes ( Figs 2 , 10 , 29 ) .................................................................... 3

—— Scutum without dark spots or stripes ( Figs 6 , 14 ) ..................................................................... 7

3 Pleura yellow without dark markings ( Figs 1 , 30 ); abdominal terga pale posteriorly with dark anterior margin extending medially ( Figs 2 , 35 ) ................................................................................................................. 4

—— Pleura yellow with dark markings ( Fig. 3 ) or mostly darkly coloured ( Fig. 9 ); abdominal terga mostly dark, without dark medial stripe ( Fig. 9 ) ................................................................................................................. 5

4 Scutal spots oval, not extended narrowly anteriorly ( Fig. 33 ); antepronotum yellow .............................................................................. L. t-maculatum sp. nov.

—— Scutal spots extended narrowly anteriorly ( Fig. 2 ); antepronotum brown ....................................................................................... L. bickeli sp. nov.

5 Pleura mostly completely darkly coloured, except proepisternum yellow ( Fig. 9 ) ..................................................................... L. castanea sp. nov.

—— Pleura with dark spot confined to posterior half of anepisternum ( Figs 3 , 26, 27 ) .................................................................................................... 6

6 Large dark spot on anepisternum extending to dorsal margin ( Figs 26, 27 ); arista-like stylus less than half-length of postpedicel ( Figs 28, 29 ) ......................................................................... L. nebulosa sp. nov.

—— Small dark spot on anepisternum not extending to dorsal margin ( Fig. 3 ); arista-like stylus more than half-length of postpedicel [males only] ............................................................ L. bimaculata ( Bezzi, 1904)

7 Antenna completely brown with microtrichia; hind femur with row of strong, dark anteroventral setae; abdominal terga with pale lateral spots [females only] ( Fig. 5 ) ........................ L. bimaculata ( Bezzi, 1904)

—— Antenna brown, except inner margin of scape and pedicel paler and shiny ( Fig. 12 ); hind femur without strong, dark anteroventral setae ( Fig. 15 ); abdominal terga with pale posterior margin [males, females] ( Fig. 16 ) ............................................ L. immaculata sp. nov.

Figures

Figures 26–29. Leptodromia nebulosa sp. nov. (26) Male holotype, lateral habitus; (27) Female paratypes, lateral habitus; (28) Female paratype, head, lateral view; (29) Male holotype, head and scutum, dorsal view.

Figures 1–2. Leptodromia bickeli sp. nov. male holotype. (1) Lateral habitus; (2) Dorsal habitus.

Figures 9–10. Leptodromia castanea sp. nov. male holotype. (9) Lateral habitus; (10) Scutum, dorsal view.

Figures 3–8. Leptodromia bimaculata (Bezzi, 1904) (3). Male, lateral habitus; (4) Male, dorsal habitus; (5) Female, lateral habitus; (6) Female, scutum, dorsal view; (7) Male terminalia, hypandrium and phallus, ventral view; (8) Male terminalia, dorsal view.Abbreviations: bac scl = bacilliform sclerite; cerc = cercus; distph = distiphalus; ej apod= ejaculatory apodeme; epand = epandrium; hypd = hypandrium; ph = phallus; sur = surstylus.

Figures 11–16. Leptodromia immaculata sp. nov. (11) Male holotype, lateral habitus; (12) Male holotype, antenna; (13) Male occiput, dorsal view; (14) Male scutum, dorsal view; (15) Male hind femur, lateral view; (16) Male abdomen, dorsal view.

Figures 30–35. Leptodromia t-maculatum sp. nov. (30) Male holotype, lateral habitus; (31) Female paratypes, lateral habitus; (32) Male holotype, antennae, dorsal view; (33) Male holotype, scutum, dorsal view; (34) Male holotype. hind femur, lateral view; (35) Male holotype, abdomen, dorsal view.