Yoyetta fumea Emery, Emery & Popple, 2025, sp. nov.
Year: 2025
Type: other
Abstract: Yoyetta fumea sp. nov. (Plates 2E–F, 3E, 4C, 6; Figs. 1, 2E–F, 10–12) Types. Holotype 1♂, Cullala Rd, Lower Broughton, 35 o 05’46’’S 149 o 46’28’’E, 10.i.2021, N., C. & D. Emery (EME0717-037) (K. 624937, AM). Paratypes. NEW SOUTH WALES: 1♂, Jacqua Rd., Windellama, 34 o 57’51’’S 149 o 54’29’’E, 10.i.2021, N., C. & D. Emery (EME0717-027); 1♀, Jerrara Rd., Bungonia, 34 o 47’13’’S 149 o 57’40’’E, 9.i.2023, C. & D. Emery (EME0717-039) (K. 624938–939, AM); 2♂, Yarrawal Rd., Windellama, NSW, 34 o 58’24’’S 149 o 55’01’’E, 4.i.2019, S. & T. Corbin, D. Emery (EME0717-025 – 026; genitalia prep 717-2); 1♂ 4♀, Jacqua Rd., Windellama, 34 o 57’51’’S 149 o 54’29’’E, 10.i.2021, N., C. & D. Emery (EME0717-028 – 033); 3♂ 1♀, same data as holotype (EME0717-034 – 036; genitalia preps 717-3, 717-4); 1♀, Jerrara Rd., Bungonia, 34 o 47’13’’S 149 o 57’40’’E, 9.i.2023, C. & D. Emery (EME0717-042) (DE); 1♂, same location as holotype, 30.xi.2013, N. & D. Emery; 1♂, Yarrawal Rd., Windellama, NSW, 34 o 58’24’’S 149 o 55’01’’E, 4.i.2019, S. & T. Corbin, D. Emery; 1♂, Jacqua Rd, Windellama, 34 o 57’51’’S 149 o 54’29’’E, 10.i.2021, N., C. & D. Emery (LWP); 2♂, Jacqua Rd., Windellama, 34 o 57’51’’S 149 o 54’29’’E, 10.i.2021, N., C. & D. Emery (EME0717-040 – 041); 2♂, Jerrara Rd. 600m north of Tickner Valley Rd., Marulan, NSW, 34°47’07”S 149°57’38”E, 28.xii.2022, J. Poyitt, (HEMC 717.001,002) (JP). Distribution, habitat and seasonality. Specimens of Yoyetta fumea sp. nov. are currently known only from around Windellama and Tarago in the Southern Highlands (Fig. 1). Individuals mainly favour the trunks of black she-oaks (Allocasuarina littoralis), where they call while stationary or moving around the trunk at heights of 2–5 m from the ground. Around Windellama, the black and drooping she-oaks (Allocasuarina littoralis and A. verticillata, respectively), are the main floral preferences (Figs 2E–F). This is a notable difference between this species and the closely related Y. humphreyae, which is primarily associated with eucalypts. Adults have been found between November and January. Etymology. The name “ fumea ” (Latin, adjective, feminine) reflects the prominent smoky infusion of the apical cells of the forewing, which is more pronounced in this species than in closely related Yoyetta species. Description of adult male (Plates 2E–F, 3E, 4C, 6; Fig. 10). Head slightly narrower than the lateral margins of pronotum; extensively black with orange brown fascia along posterior half of midline, between ocelli and eyes and surrounding pedicles; supra-antennal plates black in all specimens, occasionally edged dull orange-brown; ocelli pale pink to yellow; eyes dark brown; postclypeus dark orange-brown dorsally, sometimes with black infusions along the midline, anterior margin and ventral areas black, with lateral margins sometimes dark orange-brown, transverse ridges black, lorum black, gena black; anteclypeus mainly black, sometimes smudged orange-black anteriorly; rostrum reaching bases of hind coxae, brown basally becoming dark brown or black apically; antennae black. Thorax black with irregular orange-brown marking areas, surrounding paramedian and lateral fissures; pronotal collar black, sometimes with a central orange-brown “V” with apex anterior and extending into pronotum anteriorly. Mesonotum mainly black; submedian and lateral sigilla black; scutal depressions black; cruciform elevation black with dark orange infusion with faint black transverse striations in the lateral depressions, the symmetrical orange-brown markings extending forward along anterior ridges and ending lateral to the scutal depressions; wing grooves mainly dark orange-brown and black. Metanotum black with orange-brown central section. Thorax below mainly black with variable orange markings. Legs dark brown to black markings variable between individuals. Coxae mainly black, coxal membranes bright orange-red, trochanter black; fore femora with inner surface usually black, the outer surface predominantly dull orange-brown, femoral spines black, erect; mid and hind femora striped black on anterior sides and paler brown on posterior; fore tibiae black anteriorly, dark brown posteriorly; mid and hind tibiae dark orange-brown; tarsi orange-brown or brown suffused with black; claws dark orange-brown, becoming black at tips; meracantha black on basal half, cream over remainder, not reaching opercula. Wings with forewing costal margin black to dark orange-brown; venation generally dark brown to orange-brown; basal cell translucent, tinged green-orange; basal membranes orange; smoky infusions throughout a1–a8; infuscations of variable intensity along crossveins r and r-m. Hind wing venation dark brown; v-shaped plagas tinged smoky-grey visible along veins 2a and 3a and within anal cells. Opercula (Plate 2F), pale black basally, plates dull cream-brown, spatulate, curved medially, flexed ventrally, not meeting; approximately 1.5x larger than adjacent hind coxae. Timbals (Plate 2E) with five long ribs; ribs 1–4 attached to basal spur, separated ventrally and spanning the timbal membrane, rib 5 short, unattached, occupying dorsal central half of timbal only; timbal plate with well developed, prominent elongate and elevated dome bearing a distinct point of apodeme attachment near centre. Abdomen with tergite 1 black, posterior margins dark orange anterior to timbal cavity; tergite 2 predominantly black with dark orange spot either side of posterior midline, sometimes meeting along posterior margin; tergites 3–7 predominantly pale orange-brown each with a narrow black mark on dorsal midline, this mark being broadest on tergite 3 and narrowing slightly on each subsequent tergite posteriorly, also with a diffuse dark smudge on lateral sides resolving as a black dot on the postero-ventral aspect; tergite 8 black, tending dark orange-brown towards posterior margin, with a distinct dark orange marking on the antero-lateral aspect (Plate 3E); epipleurites flexed ventrally, a small black dot on the posterior margins. Sternite I black, orange-brown posteriorly; sternite II orange with dark-brown to black areas medially and laterally; sternites III–VII pale orange-brown, diffuse, with light black infusions on lateral halves; sternite VIII mainly orange-brown, dark brown at base, paler brown at apex. Genitalia (Fig. 10) with pygofer upper lobe of moderate size, gradually tapering to a peaked but rounded apex, in ventral view projecting outwards; basal pygofer lobe small and weakly developed, broadly rounded (Fig 10A); median lobe of uncus enlarged, long, in lateral view (Fig 10B) almost uniformly wide along length (1.6–2 mm), evenly tapering to a rounded apex, with ratio of length from base divided by widest width around 3.0, extending distally beyond the claspers, although shorter than the distance between the dorsal beak and upper pygofer lobe; claspers robust, claw-like, partially meeting, in ventral view their bases closely applied to aedeagus, with inner margins curving laterally and their outer margins turned outwards to a blunted pointed apex; aedeagus recurved distally through 180 degrees, the vesica consistently toothed either side from the curvature, apex terminating in a short, slender ‘beak’ pointing outwards and a pair of very small flat ear-like flanges directed medially and minutely toothed; a “viking helmet” shape viewed laterally, with apex either straight or slightly downturned (<30 o dorsally) in lateral view; pseudoparameres very long, reaching the distal recurvature of the aedeagus, very slender, each with a rounded apical knob (Fig 10C–D). Description of adult female (Plates 4C, 6C–D, F). Head mainly similar to male, larger amounts of orange-brown areas between ocelli and eyes, a black spot on the posterio-medial margin of the eye; ocelli colour ranging from bright red to dull pink; postclypeus dark orange-brown dorsally, sometimes with black infusions along the midline, anterior margin black, ventral aspect black in most specimens, lateral margins dark orange-brown, lighter specimens with orange-brown midline, transverse ridges black, lorum black, gena black. Thorax and legs similar to male, with coloration ranging from mainly black to principally dark orange-brown. Wings similar to male, smoky infusions and cross-vein infuscations slightly lighter. Basal membranes either bright orange in orange-brown specimens or muddy orange in darker individuals. Abdomen. (Plates 4C, 7C–D). Tergite 1 orange, black laterally along posterior margin, a central black spot on darker specimens; tergite 2 orange black over anterior third, orange to dark orange-brown over remainder, black markings around lateral extremity; tergite 3 with black coloration either restricted to the anterior margin or diffusely broadened laterally, a narrow black mark on dorsal midline, wider on darker females; tergites 4–7 predominantly dark orange-brown each with a distinct black “parallelogram” on dorsal midline, broadest on each anterior margin and widest on darker specimens, most pronounced on tergites 3–5, reducing slightly in width on successive tergites 4–7, variable black smudging laterally on each tergite, culminating in a darker black marking on the posterior half of the lateral margins; tergite 8 black over anterior half, more extensively black in darker individuals, tending dark orange-brown over remainder, with a black spot on lateral aspect. Sternite I black; sternites II–VII pale orange-brown with very faint black smudging along midline; sternite VIII darker orange-brown, a black spot either side of posterior midline; abdominal segment 9 dark ochraceous over dorsal two-thirds, darker brown ventrally, dorsal beak black, in darker specimens a black line extends from the dorsal beak anteriorly for a short distance along midline, a distinct black longitudinal marking either side of dorsal midline extends laterally along the anterior margin, a small black spot laterally near the posterior apex; ovipositor she
Institutions: The University of Sydney, Queensland Museum
Language: English
Subfield: Genetics
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W6968063456
Cites:
Cited by:
Related to: