Nilothauma duena Roback, 1960
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https://dx.doi.org/10.3897/zookeys.1033.60686 |
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lsid:zoobank.org:pub:BEFB015F-4A35-4987-AD10-DFEB7D4F91DD |
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https://treatment.plazi.org/id/A26C8588-9FBE-5FA0-83BC-BE670994ADC5 |
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scientific name |
Nilothauma duena Roback, 1960 |
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Nilothauma duena Roback, 1960 View in CoL Figures 3A, B View Figure 3 , 16C View Figure 16
Additional material.
1 male, slide-mounted: Brazil, Bahia, Camacan, Fazenda do Waldemar da farmácia, Córrego abaixo da represa de abastecimento, 15°25'16"S, 39°33'57"W, 300 m a.s.l., 05.viii.2008, light trap, A.R. Calor, L.S. Lecci, L.C. Pinho & R.A. Moretto leg. GoogleMaps 1 male, slide-mounted: Brazil, São Paulo, Pindamonhangaba, Fazenda São Sebastião, Afluente Cedro 3, 22°50'16"S, 45°28'27"W, 18.ix.2006, light trap, M.R. Spies & A.E. Siegloch leg. GoogleMaps
Diagnostic characters.
The male can be distinguished from its congeners by the combination of: tergite IX without setose dorsal lobe(s); anal point slightly spatulate; wing unmarked; abdominal tergites I-VIII with basal half light brown, distal half pale; gonostylus and inferior volsella stout.
Re-description.
Male imago (n = 2, unless otherwise stated). Total length 2.37-2.76 mm. Wing length 1.56-1.68 mm. Total length/wing length 1.58-1.66. Wing length/length of profemur 2.60-2.62.
Colouration. Head and thorax light brown; legs pale except for brown pigmentation in basal 1/3 and distal 1/5 of fore femur, basal 1/5 and distal 1/3 of fore tibia, distal 1/8 of mid- and hind femora, basal 1/8 and distal 1/8 of mid- and hind tibiae and entire tarsi. Abdominal tergites I-VIII with basal half light brown, distal half pale; hypopygium light brown. Wing membrane hyaline.
Antenna. AR = 0.17-0.18. Thirteenth flagellomere 108-118 µm long.
Head. Temporal setae 9-10 in single row. Clypeus with 13-15 setae. Tentorium 98 (1) µm long, maximum width 20 (1) µm. Stipes not measurable. Palp segment lengths (in µm): 17-25, 17-25, 32 (1), 35 (1), 62 (1). Third palpomere with 2 sensilla clavata subapically, longest 15 µm long. Fifth palpomere/third palpomere 1.92 (1).
Thorax. Dorsocentrals 16-17 in single row, acrostichals 14-16, prealars 3. Scutellum with 2-3 setae.
Wing. VR = 1.55-1.56. Brachiolum with 1 seta, R with 12-13 setae, R1 with 16-17, R4+5 with 5-22 setae, remaining veins bare.
Legs. Spur of fore tibia 54-59 µm long including 15-20 µm long scale. Mid-tibia with 1 spur, 25-29 µm long; hind tibia with 2 spurs, 49-51 and 28-31 µm long. Combs of mid-tibia 15-20 µm long, of hind tibia 18-25 µm long. Width at apex of fore tibia 48-50 µm, of mid-tibia 48-50 µm, of hind tibia 49-59 µm. Lengths and proportions of legs as in Table 2 View Table 2 .
Hypopygium (Fig. 3A, B View Figure 3 ). Tergite IX without dorsal lobes, with triangular posterior margin with 13-15 weak setae along posterior margin to each side of base of anal point. Anal point spatulate, 22-30 µm long, maximum width 10-12 µm. Tergite bands well developed. Laterosternite IX with 1-2 setae. Phallapodeme 47-60 µm long; transverse sternapodeme 55-62 µm long. Gonocoxite 112-125 µm long. Inferior volsella straight, 40-45 µm long, 15-20 µm wide medially, with microtrichia and 10-11 strong, simple setae apically. Superior volsella tapering to apex, 20-37 µm long, 12-14 µm wide at base, covered with microtrichia and apparently bare at tip. Median volsella 7-10 µm long, with 3-4 setae, longest 20-22 µm long. Gonostylus 87-90 µm long, straight. HR = 1.29-1.43. HV = 2.72-3.17.
Female adult and immatures.
Unknown.
Remarks.
See remarks for N. aleta Roback, 1960.
Distribution
(Fig. 16C View Figure 16 ). The species was originally described by Roback (1960) from the Department of Huánuco, in the Peruvian Amazon; the range is now extended to Serra Bonita (Bahia State) and Serra do Mar ( São Paulo State), in the Brazilian Atlantic Forest.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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