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.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Cicadellidae

Tribe

Gyponini

Genus

Coarctana