Lagenosoma dispar Brauer

Winterton, Shaun L., 2023, Wasp-mimicking soldier flies of the Australian Region: revision of Ampsalis Walker, Elissoma White and Lagenosoma Brauer (Stratiomyidae: Clitellariinae), Zootaxa 5246 (1), pp. 1-63 : 36

Lagenosoma dispar Brauer

( Figs 5 ; 10A ; 15E–H ; 20 ; 24C ; 26K, L ; 29I, J ; 33E, F ; 37 )

Lagenosoma dispar Brauer, 1882: 82 — Woodley, 1989: 314 [catalogue], 2001: 168 [catalogue].

Peratomastix australis Enderlein, 1914: 311 — Hardy, 1920: 46 [catalogue]; Woodley, 1989: 311 [catalogue], 2001: 131 [catalogue] syn. n.

Massicyta dispar (Brauer) — Hardy, 1920: 47.

Diagnosis. Antennae relatively elongate, flagellomere VIII deeply plumose distally, flagellomeres IV–VII all short and approximately equal in length; face bulbous black or yellow with erect, white setae; scutum and scutellum black; male abdomen petiolate; male occiput suffused with black.

Redescription. Body length = 10.0– 11.5 mm. Head. Brownish-black and yellow; frons flat, female frons yellow with dark medial furrow; face broadly rounded and bulbous, black (male) or yellow (female), extensive erect, white setae, shorter in female; parafacial yellow with margin of silver pubescence along eye; ocellar tubercle black; postocular ridge yellow, highly carinate in female, not carinate in male; occiput flat, black (male) or yellow (female), covered with white setal pile (longer in male); antenna (length = 3.0 mm) with scape and pedicel and flagellomeres I–III dark yellow with dark microtrichia, flagellomeres IV–VIII black, flagellomeres V–VII relatively short and combined length equal to length of flagellomere III, ratio of length of flagellomere VII to VIII is 1: 17, flagellomere VIII elongate and deeply plumose with microtrichia. Thorax. Black; scutum with erect, elongate, yellow, setal pile in female, short black setae in male; anepisternum whitish along dorsal and posterior margins (broader in female); scutellum black; coxae black; rest of legs yellow and black, femora yellow apically and basally, tibiae and basitarsi black apically, hind basitarsus white basally; hind tibia and tarsus longer and thicker than other legs; haltere yellow; wing slightly infuscate, venation dark; pterostigma light brown. Abdomen. Male abdomen narrow, petiolate basally, segment 1 equal to width of scutellum with segment 5 widest and equal to width of scutum, black with yellow margin laterally; segment 1 with lateral flange well developed; female abdomen wider, black, with extensive yellow laterally on tergite 1–5. Male genitalia. Epandrium relatively short; gonocoxites quadrangular with claw-like posterolateral processes; gonostylus bilobed and well developed; phallus relatively elongate with medial lobe only slightly longer than lateral lobes. Female genitalia. Not dissected.

Comments. Lagenosoma dispar is easily recognised by the extensive dark body colouration, yellow base of the antennae and banded leg pattern. The scutellum is black, rimmed with dark yellow in the female, distinguishing it from the closely related L. propinquum , where the female scutellum is whitish yellow. This species is widely distributed throughout eastern Queensland and New South Wales. Males have been observed in loose swarms at a height of approximately five metres amongst tree foliage. The male syntype is designated here as the lectotype for L. dispar to stabilise the concept of the species. The type of Peratomastix australis was deposited in the Hungarian National Museum and is presumed destroyed by fire in 1956. A neotype is herein designated to stabilise this concept of this species as there has been confusion previously regarding the taxonomic identity of this species.

Type material— Lagenosoma dispar Brauer, 1882: 82 — Lectotype male, AUSTRALIA: Queensland: Cape York [-10.9572, 142.5014], Thorey ( NMW) [examined].

Paralectotypes. AUSTRALIA: Queensland: 3 females, same data as lectotype ( NMW) [examined] .

Peratomastix australis Enderlein, 1914: 311 — Neotype female, AUSTRALIA: New South Wales: Mooney Mooney Creek, nr. Gosford [-33.4422, 151.2518], 25.XI.1975, G. Daniels (QM).

Other material examined— AUSTRALIA: New South Wales: 1 male, 1 female, Biniguy [-29.4885, 150.1152], 24.II.1929, G. R. Bass ( QM) ; 1 male, Stanwell Tops [-34.2189, 150.0008], 24.XII.1977, G. Daniels ( QM) ; 1 male, approx. 3 km N Lansdowne via Taree [-31.7558, 152.5321], 17.I.1993, G.& T. Williams ( QM) ; 1 female, Urun- ga [-30.5024, 153.0175], 31.I.1972, A.&G. Daniels ( QM) ; 1 female, Barrington House via Salisbury [-32.1498, 151.5252], 26–28.XII.1965, B. Cantrell ( QM) ; 1 female, Brownes Creek nr. Wambelong Ck., Warrumbungle N.P. [- 31.2701, 148.9661], 12–16.XII.1995, M.E. Irwin ( CSCA) . Queensland: 1 male, 1 female, Jamboree Heights, Brisbane [-27.5562, 152.9331], 15.X.2001, 26.XII.2004, G. Daniels, at light ( QM) ; 11 males, 16 female, 6 km N Taroom [-25.6041, 149.7691], 13–15.I.1991, 02.X.1992, G.&A. Daniels ( QM) ; 1 female, Mount Scoria , 6 km S Thangool [-24.5312, 150.6005], 16.I.1991, G.&A. Daniels ( QM) ; 1 male, 3 females, Westwood [-23.6229, 150.1569], 20.XI.1978, R. Eastwood ( QM) ; 3 males, 3 females, nr. Teddington Weir, S Maryborough [-25.6498, 152.6664], 14.XI.1993, 25.IX.1994, G.&A. Daniels ( GDC) ; 9 males, [-26.1701, 150.5268], 23 km NNE Barakula , 18.XII.2001 G. Monteith, D. Cook & S. Wright, brigalow, 400 m ( QM) ; 3 males [-26.2998, 150.8631], 5.5 km N Turkey Mtn. , 18.XII.2001, Monteith, Cook & Wright, vine-scrub brigalow, 450 m ( QM) ; 1 male, Dalby [-27.1943, 151.2474], 21.XI.1985, sweeping ( QM) ; 1 male, 40 Mile Scrub via Mount Garnet , [-17.6773, 145.0997], 4–21.XII.1985, Storey & Heiner, Malaise trap ( QDPI) ; 4 males, 3 females, Scrub Rd, Brisbane Forest Park [-27.4272, 152.8402], 13.XII.2007 – 17.I.2008, S.L. Winterton & J.S. Bartlett, Malaise over shallow creek in rain forest ( QDPI, CSCA) ; 1 female, Eprapah Ck, Victoria Pt. [-27.5868, 153.2513], 27.IX–10.X.1986, Malaise trap ( QDPI) ; 1 male, 1 female, Mt Cotton , [-27.6161, 153.2001], 11.XII.1997, C.J. Burwell ( QM) ; 1 male, Black Rock Scrub [-28.1334, 152.6657], 350 m, 2.XII.2000 – 13. V.2001, G.B. Monteith, rain forest pitfall trap ( QM) ; 1 male, Hurdle Gully , 14.8 km WSW Monto [-24.8845, 150.9803], open forest, 460 m, 19.XII.1997, Evans, Burwell, Ewart, mv lamp ( QM) ; 1 female, 6 km N Taroom [-25.6041, 149.769], 3.III. 1998, 200 m, C.J. Burwell, S.G. Evans ( QM) ; 1 male, Mt. Moffatt summit, Mount Moffatt Section, Carnarvon Nat. Pk. [-25.0573, 148.0438], 27.XI.1997, S. Evans ( QM) ; 1 female, 5 km SW Mt. Robert [-21.3983, 148.4498], 300 m, 22.X–18.XII.2000, Cook & Monteith, brigalow, flight intercept trap ( QM) ; 3 males, female, Bluff Pt. Sect., Capricorn Coast Nat. Pk. [-23.1844, 150.7966], summit, 30.XII.1997, C.L. Lambkin ( QM) ; 3 females, Rosslyn Head Sect., Capricorn Coast Nat. Pk., hill between State Bay & Kemp Beach , summit [-23.1661, 150.7847], 31.XII.1997, C.L. Lambkin ( QM) ; 1 male, Rosslyn Head Sect., Capricorn Coast Nat. Pk., Kemp Beach , on sand, second dune [-23.1705, 150.7888], 30.XII.1997, C.L., K.J. & J.D. Lambkin ( QM) ; 2 males, Scrub Rd, Brisbane Forest Park [-27.4272, 152.8402], 21–28.XI.1997, S. Winterton, N. Power, D. White Malaise ( QM) ; 1 male, Yeppoon [-23.1289, 150.7494], 13.X.1979, H.E & M.A. Evans & A. Hook ( QM) ; 1 female, Prince Henry Heights, Toowoomba , 620 m [-27.5531, 151.9927], 23.I.1983, I.F.B. Common ( ANIC) ; 1 male, 11 km WNW Chinchilla [-26.6479, 150.5796], 8.X.1984, I.D. Naumann ( ANIC) ; 2 females, Mt. Walsh N.P., via Biggenden [-25.5608, 152.0561], 1.I.1980, H. Frauca ( ANIC) ; 1 female, Campaspe River crossing, WSW Charters Towers [-20.4322, 145.5494], 17.I.1984, M.S.&B.J. Moulds ( QM) ; 1 male, Birkdale [-27.5001, 153.2301], 20.XI.2008, S.L. Winterton, swarming 5 m above ground amongst tree foliage ( CSCA) .

Figures

FIGURE 5. Lagenosoma dispar Brauer, male, Brisbane, Queensland (image copyright: Shaun L. Winterton).

FIGURE 10. Heads. A. Lagenosoma dispar Brauer, male; B. Ampsalis wallacei sp. n., male; C. Lagenosoma varigatum sp. n.

FIGURE 15. A. Lagenosoma dimorphum sp. n., male, lateral view; B. Lagenosoma dimorphum sp. n., male, oblique view; C. Lagenosoma dimorphum sp. n., female (light form), oblique view; D. Lagenosoma dimorphum sp. n., female (darker form), oblique view; E. Lagenosoma dispar Brauer, male, lateral view; F. Lagenosoma dispar Brauer, male, oblique view; G. Lagenosoma dispar Brauer, female, lateral view; H. Lagenosoma dispar Brauer, female, anterolateral view.

FIGURE 20. Stylised illustrations of the antenna of Eudmeta, Ampsalis, Elissoma and Lagenosoma.

FIGURE 24. Male genitalia, (dorsal and ventral views). A. Lagenosoma clitellum sp. n.; B. Lagenosoma dimorphum sp. n.; C. Lagenosoma dispar Brauer; D. Lagenosoma pictum Brauer; E. Lagenosoma propinquum Brauer; F. Lagenosoma varigatum sp. n.

FIGURE 26. Heads of Elissoma and Lagenosoma. A. Elissoma scapula sp. n., male; B. Elissoma scapula sp. n., female; C. Lagenosoma clitellum sp. n., male; D. Lagenosoma clitellum sp. n., female; E. Lagenosoma danielsorum sp. n., male; F. Lagenosoma danielsorum sp. n., female; G. Lagenosoma dimorphum sp. n., male; H. Lagenosoma dimorphum sp. n., female (pale form); I. Lagenosoma dimorphum sp. n., female (dark form); J. Lagenosoma dimorphum sp. n., female (intermediate form); K. Lagenosoma dispar Brauer, male; L. Lagenosoma dispar Brauer, female.

FIGURE 29. Elissoma and Lagenosoma scutellums. A. Elissoma scapula sp. n., male; B. Elissoma minuta sp. n., male; C. Lagenosoma clitellum sp. n., male; D. Lagenosoma clitellum sp. n., female; E. Lagenosoma danielsorum sp. n., male; F. Lagenosoma danielsorum sp. n., female; G. Lagenosoma dimorphum sp. n., male; H. Lagenosoma dimorphum sp. n., female; I. Lagenosoma dispar Brauer, male; J. Lagenosoma dispar Brauer, female.

FIGURE 33. Lagenosoma abdomens. A. Lagenosoma danielsorum sp. n., male; B. Lagenosoma danielsorum sp. n., female; C. Lagenosoma dimorphum sp. n., male; D. Lagenosoma dimorphum sp. n., female; E. Lagenosoma dispar Brauer, male; F. Lagenosoma dispar Brauer, female; G. Lagenosoma pictum Brauer, male; H. Lagenosoma pictum Brauer, female; I. Lagenosoma propinquum Brauer, male; J. Lagenosoma propinquum Brauer, female; K. Lagenosoma varigatum sp. n., male; L. Lagenosoma varigatum sp. n., female.

FIGURE 37. Distribution of Lagenosoma species.