Nilothauma yekwana, 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/2FDCF2C9-C8ED-4675-93F2-65B893098864 |
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taxon LSID |
lsid:zoobank.org:act:2FDCF2C9-C8ED-4675-93F2-65B893098864 |
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treatment provided by |
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scientific name |
Nilothauma yekwana |
| status |
sp. nov. |
Nilothauma yekwana sp. nov. Figures 15A, B View Figure 15 , 16A View Figure 16
Type material.
Holotype male, slide-mounted: Brazil, Roraima, Boa Vista, BR-174, Igarapé Água Boa, 02°43'32"N, 60°48'43"W, 2014, N. Hamada leg (UFSC).
Etymology.
The specific epithet honours the Ye’kwana, indigenous people from the Roraima State, Brazil. 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 two setose dorsolateral lobes; anal point absent; posterior margin of tergite IX subrectangular; inferior volsella straight, tapering to apex; superior volsella curved, projecting posteriolaterally; median volsella broad, triangular, bearing 7 strong setae.
Description.
Male imago (n = 1). Total length 1.77 mm. Wing length 0.91 mm. Total length/wing length 1.95. Wing length/length of profemur 2.19.
Colouration. Head, thorax, legs and abdomen uniformly light brown. Wing membrane without dark markings.
Antenna. AR = 0.22. Thirteenth flagellomere 137 µm long.
Head. Temporal setae 7 in single row. Clypeus with 15 setae. Tentorium 65 µm long, maximum width 12 µm. Stipes 80 µm long. Palp segment I-III lengths (in µm): 22, 17, 50; segment IV and V lost. Third palpomere with 2 sensilla clavata subapically, longest 15 µm.
Thorax. Dorsocentrals 5 in single row, acrostichals 10, prealars 2. Scutellum with 2 setae.
Wing. VR = 1.48. Brachiolum with 1 seta, R with 6 setae, R4+5 with 2 setae at apex, remaining veins bare.
Legs. Spur of fore tibia 44 µm long including 15 µm long scale. Mid-tibia with 1 spur, 20 µm long; hind tibia with 2 spurs, 20 and 25 µm long. Combs of mid-tibia 15 µm long, of hind tibia 18 µm long. Width at apex of fore tibia 39 µm, of mid-tibia 39 µm, of hind tibia 44 µm. Lengths and proportions of legs as in Table 13 View Table 13 .
Hypopygium (Fig. 15A, B View Figure 15 ). Tergite IX with 2 dorsolateral, densely setose lobes, setae about 15 µm long; with 2 strong setae anterolaterally, 2 medially and 4 close to posterior margin; posterior margin subquadrangular, anal point absent. Tergite bands lacking. Laterosternite IX with 1 seta. Phallapodeme 37 µm long; transverse sternapodeme 10 µm long. Gonocoxite 65 µm long. Inferior volsella straight, tapering to apex, 40 µm long, 7 µm wide medially, with microtrichia and 9 simple setae subapically. Superior volsella curved, projecting posteriolaterally, 22 µm long, 5 µm wide at base, covered with microtrichia and fringed at apex. Median volsella broad, triangular, 15 µm long, with 7 strong setae (one of them bifid), longest 20 µm. Gonostylus 75 µm long, straight. HR = 0.87. HV = 2.36.
Female adult and immatures.
Unknown.
Distribution
(Fig. 16A View Figure 16 ). Known from Roraima State, 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.