Nilothauma werekena, Pinho & Andersen, 2021
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publication ID |
https://dx.doi.org/10.3897/zookeys.1033.60686 |
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publication LSID |
lsid:zoobank.org:pub:BEFB015F-4A35-4987-AD10-DFEB7D4F91DD |
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persistent identifier |
https://treatment.plazi.org/id/2B7C1444-B834-4FAD-BE69-E0417DD42812 |
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taxon LSID |
lsid:zoobank.org:act:2B7C1444-B834-4FAD-BE69-E0417DD42812 |
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treatment provided by |
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scientific name |
Nilothauma werekena |
| status |
sp. nov. |
Nilothauma werekena sp. nov. Figures 14A-C View Figure 14 , 16D View Figure 16
Type material.
Holotype male, slide-mounted: Brazil, Amazonas, Barcelos, Rio Aracá, Foz do Igarapé Cuieiras, #11, 00°19'15"N, 63°16'15"W, 35 m a.s.l., 30.vii-01.viii.2009, light trap, N. Hamada et al. leg. (UFSC). Paratypes: 4 males, slide-mounted, same data as holotype (INPA). 2 males, slide-mounted, same data as previous, except: #9, 00°24'39"N, 63°23'12"W, 69 m a.s.l., 28.vii-06.viii.2009, light trap #3, N. Hamada et al. leg (MZSP).
Etymology.
The specific epithet honours the Werekena indigenous people from the Rio Negro Basin in the Amazon. The name is to be regarded as a noun in apposition.
Diagnostic characters.
The male can be distinguished from its congeners by the combination of: tergite IX with one low, but wide median dorsal protruberance with about 30 strong setae; anal point spatulate; superior volsella covered with microtrichia, fused to median volsella; laterosternite IX with thorn.
Description.
Male imago (n = 5-7, unless otherwise stated). Total length 1.89-2.26, 2.11 mm. Wing length 0.98-1.11, 1.05 mm. Total length/wing length 1.90-2.15, 1.99. Wing length/length of profemur 2.21-2.53, 2.37.
Colouration. Head, thorax, legs and abdomen uniformly brown. Wing membrane without dark markings.
Antenna. AR = 0.32-0.39, 0.35. Thirteenth flagellomere 230-274, 260 µm long.
Head. Temporal setae 7-8, 7 in single row. Clypeus with 10-14, 12 setae. Tentorium 47-75, 65 µm long, maximum width 12-20, 17 µm. Stipes 80-117, 100 (4) µm long. Palp segment lengths (in µm): 20-32, 27; 22-27, 25; 65-85, 72; 95-125, 110; 87-132, 115. Third palpomere with 2-5, 4 sensilla clavata subapically, longest 12-15, 14 µm long. Fifth palpomere/third palpomere 1.21-1.75, 1.54.
Thorax. Dorsocentrals 6-8, 7 in single row, acrostichals 10-14, 12, prealars 2. Scutellum with 2 setae.
Wing. VR = 1.21-1.32, 1.27. Brachiolum with 1 seta, R with 11-12, 11 setae, R1 with 5-8, 7 setae, R4+5 with 11-17, 15 setae, remaining veins bare.
Legs. Spur of fore tibia 39-44, 42 µm long including 15-20, 17 µm long scale. Mid-tibia with 1 spur, 20-25, 22 µm long; hind tibia with 2 spurs, 20-25, 23 and 28-31, 30 µm long. Combs of mid-tibia 17-19, 18 µm long, of hind tibia 18-21, 19 µm long. Width at apex of fore tibia 29-39, 34 µm, of mid-tibia 34-39, 37 µm, of hind tibia 34-44, 39 µm. Lengths and proportions of legs as in Table 12 View Table 12 .
Hypopygium (Fig. 14A-C View Figure 14 ). Tergite IX without dorsal lobe(s), with low, but wide median dorsal protruberance with 29-32, 31 strong, clustered median setae; posterior margin rounded to subrectangular, with 8-11, 9 weak setae to each side of base of anal point. Anal point spatulate, 37-47, 40 µm long, maximum width 5-10, 7 µm. Tergite bands not continuous. Laterosternite IX with 1-2, 1 seta; with anterolateral thorn. Phallapodeme 40-50, 45 µm long; transverse sternapodeme 15-25, 20 µm long. Gonocoxite 62-82, 72 µm long. Inferior volsella strongly curved, 22-30, 27 µm long, 5-8, 6 µm wide medially, with microtrichia and 3 strong, simple setae apically. Superior volsella tongue-shaped to slightly pediform, 32-40, 37 µm long, 15-25, 20 µm wide at base, densely covered with microtrichia. Median volsella fused to superior volsella, consisting of 2-3, 2 small tubercles, each bearing single, long seta. Gonostylus 70-100, 90 µm long, basal half curved, distal half straight. HR = 0.63-0.96, 0.83. HV = 2.26-2.70, 2.34.
Female adult and immatures.
Unknown.
Distribution
(Fig. 16D View Figure 16 ). Known from Barcelos (Amazonas State), in the Brazilian Amazon.
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.