Stenophragma, Skuse, 1890

Oliveira, Sarah Siqueira & Amorim, Dalton de Souza, 2012, Two New Species of Stenophragma Skuse from Western Australia (Diptera, Mycetophilidae, Sciophilinae), Records of the Australian Museum 64 (2), pp. 149-158 : 157

Key for the Australian species of Stenophragma

A key for the Patagonian species of the genus has been provided by Duret (1976), but no key is available

for the Australian species of Stenophragma , which is furnished here.

1 R 4 absent ( Fig. 3 ) ....................................................................................................................... 2

—— R 4 present ( Fig. 4 ) ..................................................................................................................... 3

2(1) Maculae not completely crossing the wing, a reduced, light brown macula over first section of Rs and over second sector of CuA ( Fig. 3 ); cercomere 1 of female terminalia slender, twice the length of cercomere 2 ( Figs. 12–13 ) .................................................................... S. bickeli n.sp.

—— Three clearly evident maculae crossing the wing, in addition to the spot over first section of Rs ( Matile, 1991: fig. 12); cercomere 1 of female terminalia wide, less than twice the length of cerco- mere 2 ( Matile, 1991: fig. 13) ................................................................... S. paponorum Matile

3(1) Gonostyle dorsal arm bearing rows of short spines ( Fig. 18 ) ................................................... 4

—— Gonostyle dorsal arm bearing isolated strong spines, but not rows of short spines ( Fig. 9 ) ...................................................................................................... 5

4(3) M 4 and CuA strongly sinuous ( Skuse, 1890: plate XIX, fig. 5) .................. S. picticornis Skuse

—— M 4 and CuA not sinuous ( Fig. 4 ) ........................................................................ S. collessi n.sp.

5(3) Brown band across the wing originating at apex of R 1 only slightly curved, wide ................................................................................... S. hirtipennis Skuse

—— Brown band across the wing originating at apex of R 1 more or less sinuous, slender ( Skuse, 1888: plate 31, fig. 9) ........................... S. meridianum (Skuse)

Figures

Figures 3–4. Wings of Stenophragma. (3) S. bickeli n.sp. paratype. (4) S. collessi n.sp. paratype. Scale 0.5 mm.

Figures 12–13. Female terminalia of Stenophragma bickeli n.sp. paratype. (12) Terminalia, dorsal view. (13) Detail of sternites 8 and 10, ventral view. Scales 0.1 mm.

Figures 14–18. Male terminalia of Stenophragma collessi n.sp. holotype. (14–15) Terminalia, dorsal view.(16) Detail of tergite 9 and cerci in dorsal view (left) and in

Figures 5–11. Male terminalia of Stenophragma bickeli n.sp. paratype. (5–6) Terminalia, dorsal view. (7) Detail of tergite 9 and cerci in dorsal view (left) and in ventral view (right).(8) Gonocoxite, gonocoxal apodeme, and parameres, dorsal view.(9) Gonostyle, dorsal view. (10) Detail of the ventral and dorsal projections of the gonostyle. (11) Detail of the median projection of the gonostyle. Scale 0.1 mm.