Nilothauma mateusi, 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/679EA037-9083-4F6D-9460-3F9F8E590EA2 |
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taxon LSID |
lsid:zoobank.org:act:679EA037-9083-4F6D-9460-3F9F8E590EA2 |
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treatment provided by |
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scientific name |
Nilothauma mateusi |
| status |
sp. nov. |
Nilothauma mateusi sp. nov. Figures 9A, B View Figure 9 ; 16B View Figure 16
Type material.
Holotype male, slide-mounted: Brazil, Mato Grosso, Nova Xavantina, Fazenda Sr. Queté, Córrego Cachoeira, 14°32.817'S, 52°31.395'W, 16.x.2007, light trap, L.C. Pinho, S. Mateus, L. Torati & F.R. Silva leg. (UFSC).
Etymology.
The specific epithet is a noun in the genitive case honouring Sidnei Mateus, for his friendship and prolific fieldwork.
Diagnostic characters.
The male can be distinguished from its congeners by the combination of: wing without markings; tergite IX with pair of rounded lobes submedially with about 14 long setae; anal point parallel-sided; superior volsella small, subtriangular, projecting medially, with 2 setae on tubercles apically.
Description.
Male imago (n = 1). Total length 2.09 mm. Wing length 0.87 mm. Total length/wing length 2.40. Wing length/length of profemur 2.41.
Colouration. Thorax and legs brown, abdomen light brown. Wing membrane without dark markings.
Antenna. AR = 0.19. Thirteenth flagellomere 82 µm long.
Head. Temporal setae 7 in single row. Clypeus with 9 setae. Tentorium 55 µm long, maximum width 12 µm. Stipes not measurable. Palp segment I-III lengths (in µm): 21, 19, 55; remaining palp segments lost. Third palpomere with 2 sensilla clavata subapically, longest about 10 µm.
Thorax. Dorsocentrals 8 in single row, acrostichals 6, prealars 2. Scutellum with 2 setae.
Wing. VR = 1.64. Brachiolum with 1 seta, R with 6 setae, R1 with 2 setae, R4+5 with 4 setae, remaining veins bare.
Legs. Spur of fore tibia 37 µm long including 18 µm long scale. Mid-tibia with 1 spur, 23 µm long; hind tibia with 2 spurs, 19 and 28 µm long. Combs of mid-tibia 14 µm long, of hind tibia 17 µm long. Width at apex of fore tibia 29 µm, of mid-tibia 30 µm, of hind tibia 33 µm. Lengths and proportions of legs as in Table 8 View Table 8 .
Hypopygium (Fig. 9A, B View Figure 9 ). Tergite IX with 4 weak setae to each side of the anal point and pair of rounded lobes submedially, each with about 14 long setae, longest about 50 µm long. Anal point parallel-sided with rounded apex, 23 µm long, 12 µm wide basally, 8 µm wide medially. Tergite bands not continuous. Laterosternite IX with 1 seta. Phallapodeme 35 µm long; transverse sternapodeme 19 µm long. Gonocoxite 73 µm long. Inferior volsella straight, 43 µm long, 7 µm wide subapically, with microtrichia and 4 strong apical setae. Superior volsella projecting medially, subtriangular with two apical tubercles, 14 µm long, 7 µm wide at base, 4 µm wide subapically, covered with microtrichia and with 2 apical setae, longest 9 µm long. Median volsella consisting of single strong tubercle, about 12 µm long, with single 10 µm long setae at apex. Gonostylus curved, 101 µm long, 10 µm wide medially, 14 µm wide subapically. HR = 0.72. HV = 2.07.
Female adult and immatures.
Unknown.
Distribution
(Fig. 16B View Figure 16 ). Only known from Mato Grosso State in Brazil.
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.