16 
Records of the Australian Museum (2016) Vol. 68 
Hydropeza queenlandensis sp. nov. 
Figs 7, 25 
Type material. Holotype S, labelled: “AUST: N.QLD: 4km/ 
up Mt. Edith Rd, 800m/ Danbulla S.F., malaise/ tp.across 
ck. 22-21 .iyJ 1994, B. J. Sinclair/ 17°05'S 145°38'E”; 
“HOLOTYPE/ Hydropeza/ queenslandensis/ Sinclair [red 
label]” (AMS). Paratypes: Queensland: 2 SS, 39 :! J, Mt. 
Hypipamee NP, 960 m, Barron R., 27.iv. 1994, 17°26'S 
145°29'E, B. J. Sinclair (CNC); 3<J& 11$$, same data 
as holotype (AMS); 14.7 km up Mt. Lewis Rd., 
860 m, 22.iv.1994, cascading ck, 16°30'S 145°17’E, B. J. 
Sinclair (CNC); 11?$, 31.6 km up Mt. Lewis Rd., 1000 m, 
21.iv. 1994, cascading ck, 16°30'S 145°17'E, B. J. Sinclair 
(AMS, CNC); Sc^c^, 4$ $, Paluma, Mt. Spec St. For., 3.6 km 
S Paluma Dam, ck, 29.iv. 1994, 800 m, B. J. Sinclair (CNC). 
Additional material. Queensland: 2^$, Mt. Finnigan, 
14.V.1981, MT, D.H. Colless (ANIC). 
Diagnosis. This species is distinguished from other 
Queensland species by restriction of the acrostichal 
setae anteriad to an imaginary line connecting the first 
(anteriormost) dorsocentral setae; male scutellum with 
several elongate discal setae; male mid femur with short row 
of basal postero ventral setae and mid tibia with short row of 
spine-like setae on apical third; male hind trochanter with 
single spine-like anteroventral seta; and male cercus deeply 
forked, Y-shaped. Females are distinguished from all other 
species by the highly setose scutellum. 
Description. Head and abdomen dark brown, thorax 
brown with paler patches; coxae brownish yellow, legs 
progressively darker towards tips. Wing length 3.5^1 mm. 
Male. Head. Ocellar setae very long, erect, divergent, 
inserted posterior to anterior ocellus; ocellar tubercle with 
some long setulae; postocellar seta stout and dark; upper 
postocular setae stout and dark, lower setae fine and slender; 
postgenal setae similar to lower postoculars. Face without 
setulae. Scape and pedicel paler than postpedicel; scape 
short and slender, slightly longer than length of globular 
pedicel; postpedicel not greatly prolonged, 3 x longer than 
scape, basal portion elongate-oval, longer than slender, 
straight apical portion; arista-like stylus slightly longer than 
postpedicel, concolorous with postpedicel. Proboscis stout 
and robust, extended slightly beyond mid-length of fore coxa, 
directed posteriorly; palpus less than half length of proboscis, 
clothed in long pale setae; apex of palpus rounded; apical 
third of palpus somewhat flattened with dense pubescence. 
Thorax. Clothed in fine pruinescence; mesonotum brown, 
with postpronotal lobe, lateral margin and postalar ridge pale 
brown; pleura paler than notum, pale along sutures. Setae 
generally long and stout; 3-4 acrostichal setulae anterior to 
1 st dorsocentral seta, less than 0.33 x length of dc; pprn with 
1 seta and several short setulae; 1 long presut spal; 5 uniserial 
dc, about subequal in length, without intermixed finer setae; 
3 npl; 1 long psut spal and 1-2 finer setae; 1 pal seta; 1 pair 
of sctl, with 1-2 pairs of finer outer marginal setae; disc of 
scutellum with several long setae. Antepronotum without 
pair of setae. 
Legs. Coxae and femora ventrally yellowish-brown; 
remaining segments increasingly darker apically. Inner anterior 
margin of fore coxa with some 15 dark, variously lengthened 
and thickened spine-like setae, mostly concentrated apically; 
basal most seta longer than width of coxa. Anterior surface 
of mid and hind coxae with long brown setae. Legs clothed 
in very long setae as typical for genus, especially ventral 
faces. Fore femur straight, slightly inflated, with row of 2 
stout anterior setae at apical fifth; 6-8 posterodorsal setae, 
stouter towards apex. Fore tibia with 2 anteroventral setae on 
apical third; 2 anterodorsal setae; 1 anterodorsal and 1 ventral 
preapical seta. Foretarsomere 1 with 1 basal anteroventral and 
1 preapical anterovental seta, more than 2 x width of segment; 
1 long basal ventral and 1 shorter ventral seta on basal third. 
Mid femur with 2-3 anterodorsal setae, 1 anterior seta and 1 
posterodorsal seta on apical third; basal half with row of 3-4 
stout posteroventral setae; apex with 1 anterior and 1 posterior 
preapical seta. Mid tibia with width reduced on ventral apical 
third, with row of 5 short spine-like setae; apex with short 
spur-like ventral seta; 1 anterior seta at mid-length; apex with 
1 anterodorsal and 1 posterodorsal seta. Mid tarsomere 1 with 
1 long anteroventral basal seta. Hind femur slightly broader 
than mid femur, without erect dorsal setae; with anteroventral 
row of stout setae along entire length; apical fourth with 2 
anterodorsal, 1 anterior and 1 posterior seta. Hind trochanter 
with single spine-like anteroventral seta. Hind tibia with 2 
anterodorsal and 4 posterodorsal setae; 1 apical anteroventral 
seta; apical third with dense posterior setae. Hind tarsomere 
1 without erect setae. Tarsomeres of fore and midlegs longer 
than tibia; ventral apical margin of tarsomere 4 of fore and 
midlegs somewhat pale, flattened and expanded; tarsomere 4 
of hindleg not laterally compressed ventrally; tarsomere 5 of 
each leg lacking dorsoapical extension. 
Wing. Infuscate with 1 long basal costal seta, longer than 
sctl; all veins lacking setulae; R 4 and R 5 distinctly divergent 
apically; bm-m complete; cell dm truncate to slightly 
produced, longer than length of cell bm; CuA + CuP reduced 
to streak. Halter brown. 
Abdomen. Tergites and stemites clothed in setae; setae 
of posterior margin overlapping more than half length of 
following tergite. T 8 broad, more than half length of T7; 
posterior marginal setae slightly shorter than preceding 
tergites. 
Terminalia (Fig. 25). Cercus elongate and projected, 
deeply forked, Y-shaped; apex of upper branch flattened, 
with short, sharp projection medially; lower branch subequal 
in length to upper. Epandrium narrow, tapered apically. 
Surstylus weakly differentiated, apex prolonged as stout, 
sharp thorn-like projection. Hypandrium keel-like, not 
greatly prolonged; apical margin with deep medial notch; 
gonocoxal apodeme short, rounded; postgonite digitiform, 
divergent, with hooked apex. Phallus broad, apically 
flattened and spoon-shaped; ejaculatory apodeme longer 
than gonocoxal apodeme. 
Female. Similar to male except as follows: scutellum highly 
setose; mid femur lacking row of stout posteroventral basal 
setae; mid tibia not narrowed apically, lacking row of spine- 
like setae; hind femur lacking anteroventral row of stout 
setae. Terminalia (not dissected): cercus slightly longer than 
epiproct, slender with rounded apex. 
Distribution. This species is widespread in the high 
tablelands in the wet tropics region of northern Queensland 
(Fig. 7). 
Etymology. The specific name refers to the distribution of 
this species. 
