Micronecta robusta Hale, 1922

Tinerella, Paul P., 2013, <strong> Taxonomic revision and systematics of continental Australian pygmy water boatmen (Hemiptera: Heteroptera: Corixoidea: Micronectidae) </ strong>, Zootaxa 3623 (1), pp. 1-121 : 58-63

Micronecta robusta Hale, 1922

( Figs. 35–37 )

Micronecta robusta Hale, 1922: 325 .

Micronecta robusta: Lundblad, 1933: 76 . [list]

Micronecta robusta: L. C. Chen, 1965: 153 . [redescription]

Micronecta robusta: Wróblewski, 1970: 681 , 689, 700. [key; biology; distribution]

Micronecta robusta: Wróblewski, 1977: 687 . [faunistics]

Micronecta robusta: Cassis and Gross, 1995: 69 . [catalog]

Micronecta robusta: Lansbury, 1995: 183 . [faunistics]

Micronecta robusta: Halse et al., 2000: 260 . [list]

Micronecta robusta: Lansbury and Lake, 2002: 3 , 30. [list; key]

Micronecta robusta: Andersen and Weir, 2004: 248 , 335. [key; list]

Diagnosis: The large size, dorsal habitus ( Figs. 35c–e ), free lobe of abdominal tergite VIII ( Figs. 36g , 37c ), and male genitalia serve to distinguish M. robusta . Females can be separated by combination of size, prothoracic lobe ( Fig. 36a ), and the metaxyphus ( Fig. 36b ). The rounded vertex and smaller size serve to separate the species from M. major .

Size: ( Table 12). Macropterous form: 3.52–4.09. Brachypterous form unknown.

Derivation of specific epithet: From the Latin robust, meaning strong, referring apparently to the large size of this species.

Notes on type material: Hale’s types ( Figs. 35a–c ) are deposited in SAMA; holotype (♂) and allotype (♀) on point card ( Fig. 35c ). Label data: “ Adelaide ; H. M. Hale ”; smaller handwritten label below with the word “TYPE”. Large handwritten label with: “ Micronecta robusta Hale , South Australia ”. “Type” handwritten in red across right side of label. The types were examined .

Description: Based on macropterous form. Measurements. Length: male 3.52–3.86; female 3.70–4.09; Width: male 1.74–2.13; female 1.85–2.16; Width of head: male 1.36–1.54; female 1.37–1.63; Synthlipsis: male 0.62–0.73; female 0.63–0.77; Width of eye: male 0.33–0.43; female 0.35–0.45; Width of pronotum: male 1.29–1.45; female 1.40–1.52; Length of pronotum: male 0.33–0.49; female 0.37–0.53.

Color: Ground color light to dark brown ( Figs. 35c–e ). Head brown, eyes silvery-black. Vertex with slight infuscation. Frons, clypeus, and genae unicolorous. Labium dark-brown to black. Antennae pale brown. Pronotum dark brown, unicolorous, with narrow pale apical band spanning width. Scutellum light brown, pruinose medioapically. Clavi each with basal broad, pale diagonal area well-developed, medial and apical portions same ground color as rest of hemelytra. Corium light brown, patterning faintly effaced or with four darker longitudinal lines prominent in medial portion. Prenodal embolar area long, infuscated in medial portion, post-nodal embolar area developed, long, infuscation prominent apically. Left membrane of both sexes hyaline. Venter of both sexes pale to light brown. Natatorial setae of metatarsus darker brown.

Structural characteristics: Ratio of body length/width: males 1.85; females 1.88. Width of head greater than pronotal width, synthlipsis 1.7 times as wide as posterior width of eye. Ocular index: males 1.85; females 1.74. General facies of head (vertex, frons, and labium) proportionate. Third antennal segment densely pilose, long, ovate, apex broadly rounded, segments one and two very short. Pronotum robust, convex, widest at middle with lateral margins slightly tapered and squared, about three times as wide as long (W/L: males 1.33/0.43; females 1.45/0.47). Prothoracic lobe short, broad, with lower and posterior margins rounded ( Fig. 36a ). Hemelytral microsculpturing consisting of short, dense meshes distributed over entire surface. Short setae uniformly distributed over entire hemelytral surface. Metathoracic wings well-developed, reaching to apex of hemelytra. Lateral spines on abdominal segments IV–VIII: IV: one stout, short spine, two thin, long setae; V: two stout, short setae, one long, stout seta, one long, thin seta; VI: two stout, short setae, one long, stout seta, one long, thin seta; VII: one short, stout spine, two long, thin spines, two long, stout setae; VIII: eight stout, short spines, three long, thin setae. Metaxyphus of both sexes broad, short and triangular, with apex rounded ( Figs. 36b , 37a ).

Male foreleg ( Fig. 36c ): femur with two short, stout spines in basal third near ventral surface. Tibia with one short spine in medio-ventral portion. Pala with 2 setae dorsally; 12 setae in upper palar row and 13–15 setae in lower palar row, lower row setae more pronounced than those of dorsal row. Apex of pala with a shorter thickened seta. Palar claw ( Fig. 36d ) broad, apex broadly rounded. Female foreleg with same general setal arrangement as male. Mesotarsal claws equaling about one-half the length of the mesotarsus.

Lateral lobes of abdominal tergum IV broad, asymmetric, and rounded apically. Right lobe longer, with 10 long setae, left lobe with, 10 long evenly spaced, apically placed setae. Prestrigilar flap of tergal segment V as in Figure 36e . Strigil well-developed, shorter, nearly ovate, with few combs. Median lobe of sternite VII ( Figs. 36f , 37b ) broad basally, with numerous scattered setae and two to four longer setae, apex long, produced, with tip rounded. Free lobe of tergite VIII ( Figs. 36g , 37c ) broad, outer angle rounded and inner angle comparatively short. Setae of varying lengths placed over entire apical portion and numbering about 31. Pars stridens processus cleaner ridges of tergite VIII not examined. Male left paramere ( Figs. 37d–g ) long, broad, and parallel-sided, apex tapered with hook-like process distally, apical scales present in inner portion before hooked area. Base broad, upper portion reaching nearly to middle of paramere shaft, lower portion of base short and rounded ( Figs. 37d–g ). Right paramere ( Figs. 37d–h ) long, convexly curved, and nearly parallel-sided, tip expanded and acuminate ( Figs. 37e–g ). Base long, triangular, and widened, with lower portion subquadrate. Pars stridens processus consisting of about 37 plectral ribs spanning lower portion of paramere base ( Fig. 37h ). Aedeagus broad, as in Figures 37d–g .

Distribution and Habitat: AUSTRALIA: New South Wales, Queensland, South Australia, Tasmania, Victoria, Western Australia. A widespread, primarily lentic species. Also collected from creeks and rivers and taken at lights. Not recorded from Australian Capital Territory during this research.

Discussion: The large size and distinct male genitalia serve to separate this species from all other Australian Micronecta . The hemelytral patterning, consisting of four longutudinal corial stripes, is generally well-developed, though variability in darkness of the pattern has been noted. Chen (1965) noted a dark, interrupted transverse pronotal band in specimens she examined. In most specimens examined in this research, the pronotal band was absent, including specimens with a lighter ground color.

Specimens examined: AUSTRALIA: New South Wales: Lake Mendindie. 17-III-1953. N. B. Tindale. (1♀). [ SAMA] ; New South Wales: Lake Mendindie. 18-III-1953. N. B. Tindale. (6♂, 5♀♀). [ SAMA] ; New South Wales: Mallee Scrub, Rankin Springs. 14-I-1963. Light. P. Aitken. (5♂, 5♀♀). [ SAMA] ; New South Wales: Broken Hill. VIII-1963. (2♀♀). [ SAMA] ; New South Wales: Broken Hill . 10-I-1964. Light. K. Dansie. (1♂, 5♀♀). [ SAMA] ; New South Wales: Moorna. 26-IX-1967. K. Simpson. (1♂). [ MVMA] ; New South Wales: 11 miles S of Lake Cargelligo. 27-I-1969. Light. J. V. Peters. (1♂). [ AMSA] ; New South Wales: Round Hill Reserve . 28-I-1969. Light. J. V. Peters. (1♂, 6♀♀). [ AMSA] ; New South Wales: 37 km E Hay. 10-III-1971. E. G. Matthews. (1♂). [ SAMA] ; New South Wales: Allyn River near Allynbrook. 21-III-1973. A. Neboiss. (5♂, 2♀♀). [ MVMA] ; New South Wales: Menidee, Lakes Park Trust, Caravan Park. 23-XII-1973. Light. G. F. Gross. (3♀♀). [ SAMA] ; New South Wales: Menindee, Lakes Park Turst, Caravan Park. 24-XII-1973. Light. G. F. Gross. (5♂, 4♀♀). [ SAMA] ; New South Wales: Menidee, Lakes Park Trust, Caravan Park. 26-XII-1973. Light. G. F. Gross. (6♂, 10♀♀). [ SAMA] ; New South Wales: 97 km S Tibooburra. 9-V-1977. I. Edwards. (1♂, 2♀♀). [ MVMA] ; New South Wales: Lagoon next to Lake Victoria. 8-IV-1978. J. Knowles. (3♀♀). [ ANIC] ; New South Wales: Jasper State Forest . 27-I-1981. R. H. Mulder. (2♀♀). [ AMSA] ; New South Wales: Darling River at Burtundy. 33 45 00S; 142 13 00E. 5-I-1982. G. Bennison. (1♂). [ MVMA] ; New South Wales: Macquarie Marshes , 17 km SE Carinda. (28-29)- X-1985. G. Hangay. (5♂, 8♀♀). [ AMSA] ; New South Wales: Macquarie Marshes , 50 km SE Carinda. (28-29)- X-1985. G. Hangay. (10♂, 2♀♀). [ AMSA] ; New South Wales: Macquarie Marshes. 1986. G. Hangay. (2♀♀). [ AMSA] ; New South Wales: O’Sullivan’s, Gap State Forest . 32 20 00S; 152 15 00E. 28-I-1993. V. Lorimer. (1♂). [ AMSA] ; New South Wales: Maroota State Forest . 33 31 00S; 150 58 00E. 29-I-1993. V. Lorimer. (1♂, 1♀). [ AMSA] ; New South Wales: Billabong Creek, u/s Jerilderie. 35 21 11S; 145 45 39E. 25-X-1994. Edge. Frances Laurenson. (3♂, 7♀♀). [ AMSA] ; New South Wales: Murray River, u/s Moama Bama State Forest . 36 04 58S; 144 50 47E. 25-X-1994. Edge. E. Turak. (1♂, 4♀♀). [ AMSA] ; New South Wales: Murray River, Howlong Common. 35 59 40S; 146 37 02E. 26-X-1994. Edge. Frances Laurenson. (1♂). [ AMSA] ; New South Wales: Murrumbidgee River, Long Beach. 34 59 16S; 144 55 16E. 28-X-1994. Edge. E. Turak. (1♀). [ AMSA] ; New South Wales: Murrumbidgee River, Nulabor. 34 28 32S; 145 06 54E. 28-X-1994. Edge. Eren Turak. (2♀♀). [ AMSA] ; New South Wales: Graben Gullen Creek, u/s Lachlan River . 34 32 25S; 149 09 27E. 26-III-1995. Edge. Russell Cowell. (1♂, 1♀). [ AMSA] ; New South Wales: Billabong Creek, u/s Jerilderie. 35 21 11S; 145 45 39E. 27-III-1995. Eren Turak. (4♂, 1♀). [ AMSA] ; New South Wales: Lachlan River, Straney’s Bridge. 33 22 30S; 147 39 13E. 27-III-1995. Edge. Russell Cowell. (1♂). [ AMSA] ; New South Wales: Wakool River, u/s Tarara Crossing. 34 55 29S; 143 28 39E. 27-III-1995. Edge. Joanne Ling. (1♀♀). [ AMSA] ; New South Wales: Billabong Creek, u/s Moulamein. 35 05 29S; 144 02 42E. 28-III-1995. Edge. Eren Turak. (1♂). [ AMSA] ; New South Wales: Kinchega National Park, Cawndilla Campground , 100 m. 32 33 00S; 142 12 00E. 28-X-1995. Schuh & Cassis. (1♂). [ AMSA] ; New South Wales: Billabong Creek, u/s Moulamein. 35 05 29S; 144 02 42E. 7-XI-1995. Edge. Bruce Gardiner. (1♂, 1♀). [ AMSA] ; New South Wales: Wakool River, u/s Tarara Crossing. 34 55 29S; 143 28 39E. 7-XI-1995. Edge. Joanne Ling. (1♂, 2♀♀). [ AMSA] ; New South Wales: Murray River, Circular Log Landing. 35 59 16S; 144 55 16E. 8-XI-1995. Edge. Joanne Ling. (8♂, 8♀♀). [ AMSA] ; New South Wales: Murray River, d/s W Albury Sewage Plant. 36 04 27S; 146 52 12E. 9-XI- 1995. Edge. Joanne Ling. (2♂, 2♀♀). [ AMSA] ; New South Wales: Billabong Creek, u/s Jerilderie. 35 21 11S; 145 45 39E. 10-XI-1995. Macrophytes. N. Waddell. (2♂, 1♀). [ AMSA] ; New South Wales: Box Creek Esc. Chan., Conargo Road. 35 24 11S; 145 03 27E. 10-XI-1995. Edge. Joanne Ling. (1♂, 1♀). [ AMSA] ; New South Wales: Graben Gullen Creek, u/s Lachlan River . 34 32 25S; 149 09 27E. 15-XI-1995. Edge. Alexander Leask. (1♀). [ AMSA] ; New South Wales: Murray River, Jingellic. 35 55 54S; 147 42 06E. 22-XI-1995. Edge. Nadia Meucci. (1♀). [ AMSA] ; New South Wales: Tooma River, d/s Tooma Dam. 36 02 55S; 148 16 32E. 23-XI-1995. Macrophytes. A. Leask. (1♀). [ AMSA] ; New South Wales: Billabong Creek, d/s Coleambally, Outfall Dam. 35 02 44S; 144 26 48E. 21-III-1996. Edge. Murray Root. (1♂). [ AMSA] ; New South Wales: Billabong Creek, u/s Jerilderie. 35 21 11S; 145 45 39E. 21-III-1996. Edge. Murray Root. (1♀). [ AMSA] ; New South Wales: Billabong Creek, u/s Moulamein. 35 05 29S; 144 02 42E. 21-III-1996. Edge. Murray Root. (2♀♀). [ AMSA] ; New South Wales: Box Creek Esc. Chan., Conargo Road. 35 24 11S; 145 03 27E. 21-III-1996. Edge. M. Root. (1♀). [ AMSA] ; New South Wales: Delegate Road, at Bill Jeffrey Memorial Park. 37 02 53S; 148 56 52E. 24-III-1997. Edge. T. Kobayaski. (1♀). [ AMSA] ; New South Wales: EPA Survey MRHI, Rocky Creek, Rich 01. 28 34 18S; 153 20 33E. 7-X-1997. Edge. G. Sherwin. (1♂). [ ASMA] ; New South Wales: Hawkesbury-Nepean River System. 11-III-1998. Edge. J. E. (1♀). [ AMSA] ; New South Wales: Hawkesbury-Nepean River System, N 682. 33 55 58S; 150 37 50E. 2-VI-1999. Edge. Ecology Lab. (1♀). [ AMSA] ; New South Wales: 10 mi N Broken Hill. Light. (3♂). [ SAMA] ; New South Wales: Broken Hill. F. W. Shepherd. (2♀♀). [ SAMA] ; New South Wales: Wangumma Stn. (1♂). [ MVMA] ; Queensland: Mornington Is. Mission. 28-IV-1960. Light. P. Aitken & N. B. Tindale. (4♂, 2♀♀). [ SAMA] ; Queensland: Normanten. 4-V-1963. Light. P. Aitken & N. B. Tindale. (1♂). [ SAMA] ; Queensland: lower regions. XI-I-1974. G. F. Gross. (1♀). [ SAMA] ; Queensland: Eyre Creek, Eyre Development Road , 75 km S Bedourie. 22-IV-1986. J. A. Forrest. (2♂, 1♀). [ SAMA] ; South Australia: Dam , 5 miles WNW Gawler. 11-V-1949. F. J. Mitchell. (2♀♀). [ SAMA] ; South Australia: South Shore, Lake Eyre. 23- IV-1955. Light. G. F. Gross. (1♀). [ SAMA] ; South Australia: Muloorina Stn. 13-II-1956. Light. G. F. Gross. (5♂, 5♀♀). [ SAMA] ; South Australia: Madigan Gulf, Lake Eyre. 16-II-1956. Light. G. F. Gross. (1♂, 1♀). [ SAMA] ; South Australia: Cooper’s Crossing. 21-II-1956. Light. G. F. Gross. (21♂, 26♀♀). [ SAMA] ; South Australia: Jimmys Well , 24.1 km E Tintinara. 3-II-1965. Light. P. Aitken & N. B. Tindale. (1♂, 3♀♀). [ SAMA] ; South Australia: Yorke Pen. between Yorketown & Moorowie. 27-II-1966. G. F. Gross. (2♂, 1♀). [ SAMA] ; South Australia: Frome River, crossing of Birdsville Track near Marree. 25-X-1966. Light. G. F. Gross. (5♂, 10♀♀). [ SAMA] ; South Australia: Paralana, Hot Springs. 21-X-1969. G. Inglis & A. Kowanko. (3♂). [ SAMA] ; South Australia: 12.5 km N Mulooroo Homestead. 30-I-1972. B. K. Head. (4♂). [ SAMA] ; South Australia: Warradale , 8 mi SW of Adelaide. 5-XII-1972. Mercury Vapor Lamp. P. B. McQuillan. (1♂, 2♀♀). [ SAMA] ; South Australia: Monarto South. 19-I-1973. Mercury Vapor Lamp. P. B. McQuillan. (1♂, 4♀♀). [ SAMA] ; South Australia: 3 km S Morgan. 18-II-1973. Light. G. F. Gross. (2♂). [ SAMA] ; South Australia: Murbko, River Murray. 20-III-1973. Light. G. F. Gross. (3♀♀). [ SAMA] ; South Australia: Marree Racecourse. 1- XII-1974. Light. J. A. Herridge. (1♂, 3♀♀). [ SAMA] ; South Australia: Flinders Ranges, Brachina Gorge. 14- XII-1974. Light. J. A. Herridge. (3♂, 5♀♀). [ SAMA] ; South Australia: Hergott Spring Bore , 2 km N Marrea. 29-XI-1974. Light. J. A. Herridge. (1♂ 1♀). [ SAMA] ; South Australia: Coopers Creek, Ferry Crossing. 30-XI- 1974. Light. J. A. Herridge. (4♂, 9♀♀). [ SAMA] ; South Australia: Margaret River , 10 km SE Coward Springs. 3-XII-1974. Sweeping. J. A. Herridge. (1♀). [ SAMA] ; South Australia: S 1/ 2 km WNW Myrtle Springs. (2-3)- III-1975. E. G. Matthews. (1♀). [ SAMA] ; South Australia: Sturt Vale to Great Eastern Dam. 18-XI-1975. G. F. Gross. (1♀). [ SAMA] ; South Australia: Windy Creek, below Aroona Dam , 10 km SW Copley. 24-XI-1975. Light. G. F. Gross. (7♂, 8♀♀). [ SAMA] ; South Australia: Windy Creek, below Aroona Dam. 25-XI-1975. G. F. Gross. (1♀). [ SAMA] ; South Australia: Lake Pinpa, 40 km E Frome, Downs Stn. VIII-IX-1976. N. Pledge. (1♂). [ SAMA] ; South Australia: Simpson Desert , 30 km E Poeppels Corner. 24-VIII-1977. Light. P. J. M. Greenslade. (1♀). [ SAMA] ; South Australia: bore bet Old Billa Kalina H. S. & Jersey (Mound) Spring. 15-V-1981. J. A. Forrest. (2♂, 1♀). [ SAMA] ; South Australia: Fairview Park, Cons. Park. 1-IV-1982. Light. J. A. Forrest. (1♂, 5♀♀). [ SAMA] ; South Australia: Goolwa Beach , pool in sand between tides. 30-I-1983. W. Zeidler. (2♀♀). [ SAMA] ; South Australia: Scorpion Spring C. P., 0.5 km SW Nanam’s Well. 14-XII-1983. Light. G. F. Gross & J. A. Forrest. (1♀). [ SAMA] ; South Australia: 2.5 km NW Loxton, Katarapko Is. 5-II-1984. Sweepnet. Adel. Univ. Survey. (2♂, 1♀). [ SAMA] ; South Australia: Cannuwaukaminna Bore , 11 km SW Etadunna H. S. 29-VII- 1984. Bore Drain. D. Lacis. (2♂, 4♀♀). [ SAMA] ; South Australia: 21.25 NE Renmark Wiela, Univ. Adelaide . 14-XII-1984. M. Thompson. (10♂, 18♀♀). [ SAMA] ; South Australia: Track to Coongie Lake . 12-V-1986. M. J. Tyler. (9♂, 8♀♀). [ SAMA] ; South Australia: Coongie Lake . 13-V-1986. M. J. Tyler. (2♂, 10♀♀). [ SAMA] ; South Australia: Lake Coongie. 13-V-1986. M. J. Tyler. (6♂, 11♀♀). [ SAMA] ; South Australia: Mouth of Marne River. 5-IX-1991. R. Biggs. (3♂, 3♀♀). [ SAMA] ; South Australia: Clifton Hills (ruin). 26 31 00S; 139 26 00E. 21-XI-1993. Light. J. A. Forrest & D. Hirst. (1♂). [ SAMA] ; South Australia: Murray Bridge. H. M. Hale. (12♂, 32♀♀). [ SAMA] ; South Australia: Murray River. H. S. Cope. (4♂, 7♀♀). [ SAMA] ; Tasmania: Clyde River at Bothwell. 28-III-1969. P. S. Lake. (1♀). [ ANIC] ; Tasmania: Hobart Airport, Llanherne. 13-X-1969. R. M. Davies. (1♂). [ ANIC] ; Tasmania: Bruny Island , pond 6 miles N Adventure Bay. 21-V-1970. P. S. Lake. (1♂, 1♀). [ ANIC] ; Tasmania: Wedge River SW. 17-II-1971. A. Neboiss. (2♂, 1♀). [ MVMA] ; Victoria: Lake Colac. 18-V-1971. B. V. Timms. (14♂, 97♀♀). [ ANIC] ; Victoria: Lake Coleman. 19-VI-1971. B. Chessman. (4♀♀). [ ANIC] ; Victoria: Lake Tcham. 20-VIII-1971. Hang. (5♂, 1♀). [ ANIC] ; Victoria: 7 km W Neerim, Tarago River. 1-III-1972. A. Neboiss. (1♀). [ MVMA] ; Tasmania: 4 miles N Richmond, Coal River, Laburnum Park. 26-V-1972. T. Walker. (1♂, 6♀♀). [ ANIC] ; Tasmania: Apsley River, near Bicheno. 17-VIII- 1972. (8♂, 3♀♀). [ ANIC] ; Tasmania: Pawleena, Small Lake . 15-I-1973. T. Walker. (1♀). [ ANIC] ; Tasmania: Bruny Island , pond near ferry turn-off, N end. 27-II-1973. R. B. Mawbey. (1♀). [ ANIC] ; Tasmania: Oatlands, Lake Dulverton. 23-V-1973. R. B. Mawbey & B. Knott. (2♂, 3♀♀). [ ANIC] ; Tasmania: L. Dulverton. 28-V- 1973. B. Knott & R. B. Mawbey. (1♂, 1♀). [ ANIC] ; Tasmania: Copping Dam C. 5-IV-1974. W. Walker. (17♂, 31♀♀). [ ANIC] ; Tasmania: Copping Dam B. 25-V-1974. W. Walker. (5♂, 1♀). [ ANIC] ; Tasmania: Copping Dam D. 25-V-1974. W. Walker. (4♂, 15♀♀). [ ANIC] ; Tasmania: Copping Dam. 26-V-1974. W. Walker. (1♂). [ ANIC] ; Tasmania: Copping Dam C. 15-IX-1974. W. Walker. (1♀). [ ANIC] ; Victoria: Irymple. 25-XI-1964. A. Neboiss. (2♂). [ MVMA] ; Victoria: Lake Boga. 28-XI-1964. A. Neboiss. (1♀). [ MVMA] ; Victoria: Grampians National Park, Lake Fyans. 21-XI-1969. E. F. Riek. (1♂, 2♀♀). [ ANIC] ; Victoria: Lake Hattah. 9-XII-1969. G. Anderson. (1♀). [ MVMA] ; Victoria: 3 mi S Hattah. 6-III-1971. E. G. Matthews. (1♂, 4♀♀). [ SAMA] ; Victoria: Geelong, dam 1/ 4 mile before Waramhine Creek, Hamilton Road. 23-IV-1971. J. Knowles. (3♂, 9♀♀). [ ANIC] ; Victoria: Streatham, Blythvale River, Fiery Creek , behind house. 24-IV-1971. J. Knowles. (1♀). [ ANIC] ; Victoria: Lake Coragulae, Alvie. 25-IV-1971. J. Knowles. (4♂, 4♀♀). [ ANIC] ; Victoria: Dam near Lake Murdeduke. 26-VI-1971. (8♂, 15♀♀). [ ANIC] ; Victoria: Lake Muirhead. 24-X-1971. B. Chessman. (1♀). [ ANIC] ; Victoria: 3 miles S Hattah. 6-III-1972. E. G. Matthews. (6♂, 11♀♀). [ SAMA] ; Victoria: Dartmouth Survey, Mitta Mitta River, Locality B. 8-II-1973. (1♂). [ MVMA] ; Victoria: Myrtleford, Slaughteryard Creek , P. radiate . 26-II-1973. M. V. Trap. A. Neboiss. (1♀). [ MVMA] ; Victoria: Dartmouth Survey, Yankee River, Locality SB. 6-III-1973. (1♂). [ MVMA] ; Victoria: Dartmouth Survey, Six Mile Creek, Locality GA. 7-IV-1973. (1♂, 1♀). [ MVMA] ; Victoria: Geelong, Little Lake next to Dam , 1/ 2 mile before Warambine Creek , Hamilton Road. 25-IV-1979. J. Knowles. (1♂, 2♀♀). [ ANIC] ; Victoria: 4 km S of Tolmie. 29- I-1983. A. Neboiss. (1♀). [ MVMA] ; Western Australia: Pinjarra Railway Station , from creek nearby. 8-VI-1974. B. Knott. (1♂). [ ANIC] ; Western Australia: Lake Joondalup, Waneroo , from lagoon near coastal area. 13-VI- 1974. B. Knott & M. Liddall. (3♂, 5♀♀). [ ANIC] ; Western Australia: Swan River Valley, Ellen Creek . 13-VI- 1974. B. Knott. (2♀♀). [ ANIC] ; Western Australia: Woodstock Stn., WS 9. 21 37 00S; 119 01 24E. 24-IX-1988. UV Light. B. P. Hanich. (4♂, 6♀♀). [ SAMA] ; Western Australia: Maidavale Lake, near Kalamunda Road. 27- IV-1990. C. Watts. (2♂, 3♀♀). [ SAMA] ; Western Australia: Latrobe River Survey, u/s Tra’n Creek, Sta. 13. 14- II-1973. Light Trap. (5♀♀). [ MVMA] ; Western Australia: Latrobe River Survey, Tyers River, Sta. 22. 15-II- 1973. Light Trap. (3♂, 3♀♀). [ MVMA] .

Figures

FIGURE 35. Micronecta robusta Hale, holotype and dorsal habitus. a–b. Locality and type labels. c. Holotype specimen, male, dorsal habitus. d. Male. e. Female. Scale bars = 0.5 mm.

FIGURE 36. Micronecta robusta Hale. a. Prothoracic lobe, female. b. Metaxyphus. c. Left male foreleg, posterior aspect. d. Left male pala (tarsus), anterior aspect, palar claw folded in. e. Prestrigilar flap of abdominal segment V. f. Sternal process of abdominal segment VII. g. Free lobe of abdominal tergum VIII. Scale bars = 0.1 mm.

FIGURE 37. Micronecta robusta Hale. a. Metaxyphus. b. Sternal process of abdominal sternite VII. c. Free lobe of abdominal tergite VIII. d. Left paramere, lateral aspect. e. Left paramere, lateral aspect, right paramere, dorsal aspect. f. Left paramere, fronto-lateral aspect, right paramere, fronto-lateral aspect. g. Left paramere, medio-ventral aspect, right paramere, lateral aspect. h. Pars stridens processus, base of right paramere.