Coarctana striata, Domahovski & Cavichioli, 2023

Domahovski, Alexandre Cruz & Cavichioli, Rodney Ramiro, 2023, Phylogenetic analysis and revision of the leafhopper genus Acuera DeLong & Freytag (Hemiptera: Cicadellidae: Gyponini) based on morphological data, Arthropod Systematics & amp; Phylogeny 81, pp. 79-164 : 79

publication ID

https://dx.doi.org/10.3897/asp.81.e81961

publication LSID

lsid:zoobank.org:pub:5C1FDC82-8F9F-4869-ADDD-83FA96E507ED

persistent identifier

https://treatment.plazi.org/id/B32E1D93-4E16-4DC8-BBDE-6835F171450C

taxon LSID

lsid:zoobank.org:act:B32E1D93-4E16-4DC8-BBDE-6835F171450C

treatment provided by

Arthropod Systematics & Phylogeny by Pensoft

scientific name

Coarctana striata
status

sp. nov.

Coarctana striata sp. nov.

Figs 26 View Figure 26 , 27 View Figure 27 , 32G, H View Figure 32

Diagnosis.

Pygofer (Fig. 26G View Figure 26 ) with apex truncate. Style, in lateral view (Fig. 26K View Figure 26 ), blade curved dorsally, ventral margin not serrated and with lateral carina. Aedeagus (Fig. 26L, M View Figure 26 ) apodemal processes narrow basally, curved in right angle dorsally; ventral margin forming triangular lobe produced ventrally; posterior margin with transverse and parallel striae; shaft apex with pair of short processes, curved laterally and crossed over the posterior surface.

Measurements.

Total length: holotype male 8.5 mm; paratypes, females (n = 3) 9.6-10.4 mm.

Description.

Head, in frontal view (Fig. 26B View Figure 26 ), frons 1.2 × wider than long; frontogenal suture distant from eye margin by less than half maximum width of clypeus; clypeus 1.4 × wider than long; lateral margins parallel; apex straight. Head, in lateral view (Fig. 26C View Figure 26 ), crown-face transition thin with 4-5 transverse carinae; clypeus not inflated. Profemur AV row with 5-6 setae; PV row with 1 seta near apex. Protibia PD row with 4 setae and undifferentiated intercalary setae; PV row with 4 setae and undifferentiated intercalary setae. Metatibia PD, AD and AV rows with 23, 12 and 14-16 macrosetae respectively. Metatarsomere I 4 × 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 26A, B View Figure 26 , 32G, H View Figure 32 ) brown. Head (Fig. 26A View Figure 26 ) with pair of small circular black spots, near posterior margin, behind ocellus; coronal suture black. Face (Fig. 26B View Figure 26 ) yellowish; frons reddish-brown dorsally with pair of transverse black maculae below crown-face transition; black macula adjacent to antennal base. Pronotum (Fig. 26A View Figure 26 ) with black punctures, irregular black maculae near anterior margin; proepimeron (Fig. 26C View Figure 26 ) with black band below pronotal carina; lateral carina yellow. Mesonotum (Fig. 26A View Figure 26 ) with pair of large black maculae near lateral angles and pair of small median black spots near scutoscutellar suture. Forewing (Fig. 26D View Figure 26 ) with scattered dark-brown mottling, larger black maculae on apex of anal veins, cross veins of inner discal cell and base of first apical cell; veins brown, margined by black punctures on basal half of wing. Metatibia (Fig. 26C View Figure 26 ) with cucullate bases of setae blacks.

Male terminalia.

Sternite VIII (Fig. 26E View Figure 26 ) 1.4 × wider than long; lateral margins parallel; posterior margin slightly sinuous. Valve (Fig. 26F View Figure 26 ) 1.6 × wider than long; posterior margin rounded. Pygofer, in lateral view (Fig. 26G View Figure 26 ), 1.7 × longer than maximum height; basodorsal process present but reduced; anteroventral margin broadly rounded; posterodorsal and posteroventral margins straight; apex truncate. Subgenital plate, in lateral view (Fig. 26G View Figure 26 ), short, not reaching pygofer apex; in ventral view (Fig. 26H View Figure 26 ), elongated, 3.8 × longer than wide, maximum width near half length; dorsal surface with filiform setae near outer margin; lateral margins slightly rounded; apex weakly tapered and rounded. Connective (Fig. 26I View Figure 26 ) almost as wide as long; anterior margin excavated; dorsal keel and stem reduced; stem wide. Style, in dorsal view (Fig. 26J View Figure 26 ), with outer lobe truncated; in lateral view (Fig. 26K View Figure 26 ), blade curved dorsally, wider near base and tapered toward apex; ventral margin not serrated, with a longitudinal carina; apex tapered, forming a small dorsal process. Aedeagus (Fig. 26L, M View Figure 26 ) preatrium weakly developed; dorsal apodeme with dorsal margin straight, lateral margins slightly produced laterally; apodemal processes narrow basally, curved in right angle dorsally at basal third; ventral margin forming triangular lobe produced ventrally; posterior margin with transverse and parallel striae; apex tapered, subacute; shaft approximately cylindrical, symmetrical, strongly curved dorsally near base, with a basolateral expansion that surrounds the previous portion of the shaft, basal third slightly curved posterad; apical third straight; apex with pair of short processes, curved laterally and crossed over the posterior surface. Other characteristics as in generic description.

Female terminalia.

Sternite VII (Fig. 27A View Figure 27 ) 1.5 × wider than long; posterolateral angles produced as far as posterior margin; posterior margin excavated each side of emarginated median lobe which occupies the median third. Internal sternite VIII membranous. Pygofer (Fig. 27A, B View Figure 27 ) 1.9 × longer than maximum height; ventral margin slightly rounded; dorsal margin straight; apex obliquely truncate. First valvifer (Fig. 27C View Figure 27 ) triangular, 1.4 × longer than wide; lateral and dorsal margins straight. First valvula (Fig. 27C View Figure 27 ) 5.2 × longer than wide; apex (Fig. 27D View Figure 27 ) abruptly tapered and acute. Second valvula (Fig. 27E View Figure 27 ) 3.8 × longer than wide; strongly expanded near mid-length; dorsal protuberance weakly developed; dorsal margin (Fig. 27F View Figure 27 ) with few minute rounded teeth; apex gradually tapered and triangular. Second valvifer (Fig. 27G View Figure 27 ) 2.5 × longer than wide. Gonoplac (Fig. 27G View Figure 27 ) 3.7 × longer than wide; apex (Fig. 27H View Figure 27 ) rounded. Other characteristics as in generic description.

Material examined.

Holotype male: Brazil: Tocantins: "Brasil, Tocantins, Palmas\ Taquaruçu, Fazenda\ Encantada 10°14′57″S 48°07′35.4″W Malaise\ 10-17.viii.2012 Krolow,\ T.K. & Lima, H.I.L. leg." (DZUP) GoogleMaps . Paratypes: 1♀, same data as holotype except 15-22.vi.2012 (DZUP) GoogleMaps . - Maranhão: 1♀, "Brasil (MA), Bom Jardim\ REBIO-Res. Biol Gurupi\ Armadilha Malaise", " 01-06.xi.2010, F.Limei \ ra-de-Oliveira, D.W.A. Mar \ ques & E.A. S. Barbosa " (CZMA) ; 1♀, "Brasil (MA), Bom Jardim\ REBIO-Res. Biol Gurupi\ Armadilha Malaise", " 02-11.ix.2010, D.W.A.\ Marques, E.A. S. Barbosa \ J.A. Silva & M.M. Abreu " (CZMA) .

Etymology.

The new species name refers to the aedeagus with apodemal processes bearing many transverse striae.

Remarks.

Coarctana striata sp. nov. (Fig. 7 View Figure 7 ) was recovered with low support (SR = 54) as sister to the clade C. taurina sp. nov. + C. oricula sp. nov. and the clade of C. vilavelha sp. nov. + ( C. nigromedia sp. nov. + C. asymmetrica sp. nov.). Coarctana striata sp. nov. is easily separated from its congeners by the aedeagus (Fig. 26L, M View Figure 26 ) with apodemal transversely striated on posterior margin and the shaft with pair of short apical processes, curved laterally and crossed over the posterior surface of shaft.