Lispe nigrimanoides, Pont, 2019

Pont, Adrian C., 2019, Studies on the Australian Muscidae (Diptera). VIII. The genus Lispe Latreille, 1797, Zootaxa 4557 (1), pp. 1-232 : 42-44

Lispe nigrimanoides sp. nov.

( Figs 77–82 )

Diagnosis. In the ♂ of this species the armature of the mid and hind tarsomeres ( Figs 80–82 ) is unique. The ♂ is similar to that of L. nigrimana , but lacks the very long pv setae on hind femur so characteristic of that species; the ventral surfaces of mid and hind femora are entirely without setae.

Etymology. The name indicates the close similarity between the new species and L. nigrimana .

Type Material Examined. Holotype ♂. AUSTRALIA: Western Australia: Millstream , 24.x.1970, D.H. Colless ( ANIC) . Paratypes 1♂ 7♀. AUSTRALIA: Western Australia: same data as holotype , 1♀ ( ANIC); Millstream , 22.x.1970, D.H. Colless , 5♀ (3 ANIC, 1 BMNH, 1 OUMNH); Millstream , at light, 23.x.1970, D.H. Colless 1♀ ( ANIC); Shothole Canyon, Cape Range, Exmouth , beside water, 12.viii.1970, P. Ferrar , 1♂ ( ANIC) .

Description ♂ ♀. Head ( Fig. 78 ). Ground-colour black. Frons at broadest point 0.33 (♂) or 0.43 (♀), at lunula 0.25 (♂) or 0.37 (♀), of maximum head-width (frontal view). Eye with an area of facets alongside lunula conspicuously enlarged. Ocellar setae very short and fine. Fronto-orbital plate with upper third matt to subshining, lower part brown (♂) to brownish-yellow (♀) pruinose, extreme lower part together with parafacial, face and gena yellowish-white pruinose, almost golden; lower 2/3 of occiput white pruinose, upper 1/3 thinly so but not shining, except weakly so at vertex. Lower reclinate orbital seta usually present. Frontal triangle slender (♂) to moderate (♀), shining black. Parafacial narrow, at middle 1/4 (♂) or 1/2 (♀) width of postpedicel; setulae short, fine, in 1 row. Antenna black, except tip of pedicel and base of postpedicel which are orange; postpedicel 2.0 times as long as broad, falling short of mouth-margin by 1.4 (♂) or 0.8 (♀) times its length. Arista plumose, the hairing at widest point 1.7 (♂) to 1.5 (♀) times width of postpedicel. Vibrissa strong but short, only just crossing, set high above mouth-margin, especially in ♂ ( Fig. 83 ), vibrissal area otherwise with few setulae. Gena moderate, 0.11 (♂) to 0.18 (♀) of vertical eye-length; genal setae weak. Palpus yellow, swollen at tip (as in L. nigrimana , Fig. 59 ).

Thorax. Ground-colour black. Scutum brownish-grey dusted, with 3 inconspicuous darker brown vittae along the dc and acr lines, the acr vitta sometimes enlarged, sometimes all three rather enlarged, and a broader dark brown post patch on each side outside the ia lines; scutellum dark brown dusted on disc and at tip, the sides yellowish-grey in basal half; all pleura (including notopleuron) dull grey dusted. Anterior spiracle brown. Scutal ground-setulae short and decumbent. Acr setulae in 4–5 irregular rows at suture. Dc 0+2, the anterior post seta half as long as the posterior one. 1 pprn. 0+0 ia. 1+1 sa, the prst seta short and weak. 1 proepisternal seta, with an adjacent setula. 1 proepimeral seta, with 8-11 tiny adjacent setulae. Anepisternum without a short seta in upper anterior corner; posterior row with 1 strong and 4 weak setae. 3 kepst, lower one closer to posterior than to anterior one, anterior and lower setae well developed. Meron bare below spiracle, with a few tiny setulae above hind coxa. Scutellum with disc sparsely setulose, bare on sides; with some soft pale hairs on ventral surface at tip.

Legs. Coxae black; trochanters mostly reddish; fore leg black except for knee and basal 1/4 (♂) or 1/3 (♀) of tibia; mid and hind femora black in basal half and yellow in apical half or a little more; mid and hind tibiae yellow; tarsomeres black. Fore coxa bare behind. Fore femur without av setae; pv surface with 3–4 short setae in apical half, otherwise short setulose; pd row complete. Fore tibia not expanded or flattened; without submedian setae; with d and short pv apical setae, the pv absent in ♂. Fore tarsus without modifications. Mid femur without av, pv or a setae; without preapical ad; 1 p preapical. Mid tibia with 0 ad and 1 p; with moderate a, v and pv apicals, and a short d and p. Mid tarsus of ♂ modified ( Fig. 80 ): basal tarsomere elongated, and tarsomeres 1–3 with sparse semierect v setulae; not modified in ♀. Hind coxa without a seta on posterior apical margin. Hind femur without av or pv setae; ad row complete, weak; 0 pd preapical. Hind tibia with 1 ad, without av or pd; 1 d but no ad preapical seta; 1 short av apical but no pv. Hind tarsus of ♂ ( Figs 81–82 ) with basal tarsomere slightly bent, concave, with a v seta near base (also present in ♀), a row of a setae, long at base, becoming shorter and continuing on to tarsomere 2, av to v surfaces finely setulose; not modified in ♀.

Wing. Narrow. Very weakly smoky. Tegula brown, basicosta orange. Crossvein r-m placed below the point where vein R1 enters costa; dm-cu straight, longer than apical section of vein CuA1. Vein M running straight to wing-margin. Calypters white to creamy, with creamy margins. Haltere yellow.

Abdomen. Ground-colour black. Segments 4 and 5 of ♂ modified as in L. nigrimana ( Figs 67–68 ). Tergites subshining black with very thin dark brown dust; ♂ with white dusted spots as in L. nigrimana ( Figs 64, 66 ), except that the lateral and dorsal areas of dust on syntergite 1+2 are connected by a hind-marginal band of dust; more yellowish-grey in ♀, the pattern as in L. nigrimana ( Fig. 65 ) except that syntergite 1+2 is more extensively dusted. ♂ epandrium dusted white. Sternites 1–4 (♂) or 1–5 (♀) light grey dusted. Setae on tergites very weak, tergites 3 to 5 each with 1 pair of weak lateral marginal setae, tergite 5 with a few additional shorter marginals that form a row, without discals; these all very short and inconspicuous in ♀. ♂ sternites 2–4 with sparse setulae.

Ƌ terminalia. Not differing in any significant way from those of L. nigrimana (see Figs 70–72 ). Cercal plate more indented on lower outer edge ( Fig. 79 ).

♀ ovipositor. Not differing from that of L. nigrimana (see Figs 73–75 ). Ventral membrane of segment 8 sometimes with a bristle on one or both sides, indicating the former presence of 2 small plates representing sternite 8.

Measurements. Wing-length, 3.0– 3.5 mm (♂), 3.5–4.0 mm (♀). Body-length, 4.5–5.0 mm (♂), 4.5–5.0 mm (♀).

Biology. Nothing known.

Distribution. Known only from the type-series from Australia (WA).

Figures

FIGURE 77. Lispe nigrimanoides sp. nov., ♂ habitus (holotype).

FIGURES 78–82. Lispe nigrimanoides sp. n., ♂. 78. Head, frontal view. 79. cercal plate, dorsal view. 80. Mid tarsomeres, posterior view. 81. Hind tarsomeres 1–2, anterior view. 82. Hind tarsomeres, dorsal view. (Paratype from WA, Shothole Canyon, Cape Range.)

FIGURES 83–87. Lispe sydneyensis Schiner. 83. ♂ head, lateral view. 84. ♀ palpus. 85. ♂ fore tarsomeres, dorsal view. 86. ♂ hind leg, anterior view. 87. ♂ hind tarsomere 1, dorsal view. (83, WA, Mt Ragged; 84, ACT, Doughboy Creek; 85–87, NSW, Ku Ring Gai.)

FIGURES 57–59. Lispe nigrimana (Malloch). 57. ♂ head, lateral view. 58. ♂ head, frontal view. 59. ♀ palpus. (57, 58, NT, 32 km WNW of Alice Springs; 59, NT, Standley Chasm.)

FIGURES 64–68. Lispe nigrimana (Malloch). 64. ♂ abdomen, dorsal view. 65. ♀ abdomen, dorsal view. 66. ♂ abdomen, lateral view. 67. ♂ abdominal segments, left side. 68. ♂ abdominal segments, right side. ep—epandrium, stg—syntergosternite, t—tergite. (64, 66, NT, Todd River; 65, 67, 68, NT, Standley Chasm.)

FIGURES 69–72. Lispe nigrimana (Malloch), ♂ terminalia. 69. sternites 1–4. 70. Hypopygium, lateral view. 71. Cercal plate, dorsal view. 72. Phallic complex, lateral view. pg—postgonite. (69, NT, Standley Chasm; 70, 71, 72, NT, Todd River 9 km N by E of Alice Springs.)

FIGURES 73–76. Lispe nigrimana (Malloch), ♀ ovipositor. 73. Dorsal view. 74. Ventral view. 75. Lateral view. 76. Ovarian egg, lateral view. (NT, 32 km WNW of Alice Springs.)