Coarctana glabra, Domahovski & Cavichioli, 2023
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publication ID |
https://dx.doi.org/10.3897/asp.81.e81961 |
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publication LSID |
lsid:zoobank.org:pub:5C1FDC82-8F9F-4869-ADDD-83FA96E507ED |
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persistent identifier |
https://treatment.plazi.org/id/5BF609DC-F952-4CE6-BE27-11A2BA6AEC20 |
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taxon LSID |
lsid:zoobank.org:act:5BF609DC-F952-4CE6-BE27-11A2BA6AEC20 |
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treatment provided by |
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scientific name |
Coarctana glabra |
| status |
sp. nov. |
Coarctana glabra sp. nov.
Figs 19 View Figure 19 , 31E, F View Figure 31
Diagnosis.
Subgenital plate, in ventral view (Fig. 19H View Figure 19 ), ovoid, outer margin with minute setae. Connective (Fig. 19I View Figure 19 ) with stem thin, about as long as arm length. Style, in lateral view (Fig. 19K View Figure 19 ), ventral margin with median third with small, rounded lobe; apex strongly tapered, curved dorsally. Aedeagus (Fig. 19L, M View Figure 19 ) apodemal process elongated, broadly curved dorsally; apex tapered and truncated, finely serrated; shaft apex with two pairs of short processes: subapical pair directed ventrally, and apical pair curved laterally, as long as the subapical pair.
Measurements.
Total length: holotype male 8.0 mm.
Description.
Head, in frontal view (Fig. 19B View Figure 19 ), frons 1.1 × wider than long; frontogenal suture distant from eye margin by approximately half maximum width of clypeus; clypeus 1.5 × wider than long; lateral margins parallel; apex straight. Head, in lateral view (Fig. 19C View Figure 19 ), crown-face transition thin, almost foliaceus, with 3 transverse carinae; clypeus not inflated. Profemur AV row with 5-6 setae; PV row with 2 setae. Protibia PD row with 3 setae and undifferentiated intercalary setae; PV row with 2-3 setae and undifferentiated intercalary setae. Metatibia PD, AD and AV rows with 24, 13 and 14-15 macrosetae respectively. Metatarsomere I moderately elongated, 3 × longer than apical width; inner row of the ventral surface with 7-8 setae. Other characteristics as in generic description.
Coloration.
Head and thorax (Figs 19A-D View Figure 19 , 31E, F View Figure 31 ) reddish-brown. Head (Fig. 19D View Figure 19 ) with pair of small circular black spots, near posterior margin, behind ocelli. Gena (Fig. 19B View Figure 19 ) yellowish; antennal pit dark brown. Pronotum (Fig. 19A View Figure 19 ) with black punctures and irregular black spots near anterior margin; proepimeron (Fig. 19C View Figure 19 ), with black band below pronotal carina, wider near anterior margin; lateral carina yellow. Mesonotum (Fig. 19A View Figure 19 ) with dark-brown lateral angles, pair of small median black spots near scutoscutellar suture, pair of small yellow spots on lateral angles. Forewing (Fig. 19D View Figure 19 ) strongly marked by dark-brown mottling; veins brown, outlined by dark brown. Legs yellowish with black punctures and maculae. Metatibia (Fig. 19C View Figure 19 ) with cucullate bases of setae blacks.
Male terminalia.
Sternite VIII (Fig. 19E View Figure 19 ) 1.5 × wider than long; lateral margins parallel; posterior margin slightly excavated each side of broad median lobe. Valve (Fig. 19F View Figure 19 ) 2 × wider than long; posterior margin notched medially. Pygofer, in lateral view (Fig. 19G View Figure 19 ), 1.5 × longer than maximum height; basodorsal process present but reduced; anteroventral margin truncated; posterodorsal margin rounded; posteroventral margin straight; apex broadly rounded. Subgenital plate, in lateral view (Fig. 19G View Figure 19 ), almost reaching pygofer apex; apex curved dorsally; in ventral view (Fig. 19H View Figure 19 ), ovoid, 2.5 × longer than wide, maximum width near basal third; outer margin with minute setae; lateral margins rounded; apex weakly tapered and rounded. Connective (Fig. 19I View Figure 19 ) wider than long; anterior margin weakly excavated; dorsal keel reduced; stem thin, about as long as arm length. Style, in dorsal view (Fig. 19J View Figure 19 ), with outer lobe reduced; in lateral view (Fig. 19K View Figure 19 ), with blade wider near base and tapered toward apex; dorsal margin slightly sinuate; ventral margin with apical half serrated, median third with small, rounded lobe; apex strongly tapered, curved dorsally. Aedeagus (Fig. 19L, M View Figure 19 ) preatrium weakly developed; dorsal apodeme with dorsal margin slightly excavated, lateral margins produced ventrolaterally; apodemal process elongated, strongly curved dorsally, slightly wider medially; apex tapered and truncated, finely serrated; shaft slightly asymmetrical, basal half weakly flattened dorsoventrally and cylindrical apically, curved dorsally near base; apex slightly twisted laterally, with two pairs of short processes: subapical pair directed ventrally and apical pair curved laterally, as long as the subapical pair. Other characteristics as in generic description.
Female.
Unknown.
Material examined.
Holotype male: Brazil: Amapá: "Brasil, AP, Serra do\ Navio, Igarapé na\ estrada para Rio Amapari ( Pedra Preta )\ XI.2014 J.A. Rafael & F.F. Xavier " (INPA).
Etymology.
The new species name refers to the subgenital plates without filiform setae.
Remarks.
C. glabra sp. nov. is sister to C. rana comb. nov. + C. serpenta comb. nov. with moderate branch support (SR = 65) (Fig. 7 View Figure 7 ). Coarctana glabra sp. nov. resembles C. rana comb. nov. and C. serpenta comb. nov. by having the forewings (Figs 31E View Figure 31 , 32C-F View Figure 32 ) with several small black maculae and by the similar shape of the apodemal processes of aedeagus (Fig. 19L View Figure 19 ) slender and strongly curved dorsally. The new species is easily separated by the subgenital plate (Fig. 19H View Figure 19 ) ovate and lacking long filiform setae.
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