Sinclair: Hydropeza empidid flies of Australia 
17 
Figures 26-28. Hydropeza tasmanica. (26) Male epandrium, lateral view. (27) Male terminalia with epandrium removed, lateral view. 
(28) Wing. Abbreviations: bm-m, basal medial crossvein; cere, cercus; cua, anterior cubital cell; CuA +CuP, anterior branch of cubital vein 
plus posterior branch of cubital vein; dm, discal medial cell; hypd, hypandrium; M, medial vein; p cere, posterior cercus; pgt, postgonite; 
ph, phallus; R, radial vein. Scale bars = 0.4 mm, except Fig. 28 where scale bar = 0.1 mm. 
Remarks. The two females from Mt. Finnigan were 
excluded from the type series because the acrostichal setae 
extend beyond the first dorsocentrals. Collection of male 
specimens from this locality is required to confirm species 
identity. 
Hydropeza tasmanica sp nov. 
Figs 5, 13-17, 22, 26-28 
Type material. Holotype S, labelled: “AUST:TAS: Cradle/ 
Mtn N.P., Pencil Pine/Tr., 20.ii.1994/ Pencil Pine Ck., 
800m/B. J. Sinclair”; “HOLOTYPE/Hydropeza/tasmanica/ 
Sinclair [red label]” (AMS). Paratypes: Tasmania: 1$, nr. 
Collingwood Ck on Lyell Hwy, 27.i. 1989, buttongrass/ heath, 
ypans, D. Bickel (AMS); 5??, Collins Cap, W Mt. 
Wellington, 800 m, 18.ii. 1961, L. Couchman (ANIC); 2<5 l <5 1 , 
2$$, Cradle Mtn NP, Pencil Pine Tr., 20.ii.1994, Pencil 
Pine Ck, 800 m, B. J. Sinclair (CNC); 1<J, Cradle Mtn NP, 
Overland/ Dove Lake Tr., 21.ii. 1994, 800-1000 m, B. J. 
Sinclair (CNC); \$, 3$ g, Ferntree Gully, ii. 1928,1. Smith 
(ANIC); 1$, 2g$, 8 mi E Gormanston, 284.1948, Key, 
Carne & Kerr (ANIC); 1& Ig, Hartz Mont., 10.xii.1922, 
A. Tonnior (ANIC); 1$, Huon-Picton River junction, 
18.ii.1967, A. Neboiss (NMV); 1 S, King River, 4.ii.l923, 
A. Tonnoir (ANIC); 1$, 5 mi. W King William Saddle, 
4.xi.l961, N. Dobrotworsky (AMS); iSS, 7gg, Lyell 
Hwy Franklin/Gordon Wild Rivers NP, 19.ii. 1994, Franklin 
R. , B. J. Sinclair (CNC); 3df<J, 2gg, Mt. Barrow St. Res., 
22.ii.1994, B. J. Sinclair (CNC); 3SS, 2??, Mt. Field, 
19.xii.1922, A. Tonnoir (ANIC); \S, Mt. Field, ll.xi.1953, 
S. Butler (NMV); 5<$$, 3g $, Mt. Field NP, Lake Dobson, 
small stream inflow, 18.ii.1994, 1020 m, B. J. Sinclair 
(CNC); \S, 1$, Mt. Field NP, Mawson Plateau, 1200 m, 
alpine sweeping, 254.1989, D. Bickel (AMS); 2gg, Mt. 
Rufus, 274.1948, Key, Came & Kerr (ANIC); 2cM> 1$, 
Myrtle Forest, 294.1937, G.&C. Davis (ANIC); 2 $.&, 19$$, 
Pelion Hut, 3 kmS Mt. Oakleigh, 41°50'S 146°03'E, 860 m, 
vi,x,1990, 84.-12.ii., 94v.-6.vi. 1991, D. Naumann (AMS, 
ANIC); lc?, 6$?, Pelion Hut, 84.1991, Nielsen, Edwards 
(AMS); lg, Pelion Plain 1 kmS, 7.vi.l990 (AMS); 1<J, 
499. Scott Peak, Dam Rd. & Clear Ck, 4-5.ii. 1989, wet 
scler; MT, D. Bickel (AMS). 
Diagnosis. This is the largest Australian species of 
Hydropeza, distinguished by its dark brown coloration, 
knob-like ventral process on the male mid femur and slender 
hind femur. 
Description. Head and abdomen dark brown, thorax 
brown with paler patches; coxae often pale brown, legs 
progressively darker towards tips. Wing length 6-7.2 mm. 
Male. Head (Fig. 13). Ocellar setae very long, erect, 
divergent, inserted posterior to anterior ocellus; ocellar 
