Coarctana vilavelha, 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

Coarctana vilavelha sp. nov.

Figs 29 , 30 , 32K, L

Diagnosis.

Head (Fig. 29A ) with wide longitudinal dark-brown band between ocelli. Pygofer (Fig. 29G ) with apex truncated. Subgenital plate (Fig. 29H ) with long filiform setae. Style (Fig. 29K ) apex obliquely truncate, with dorsal process subacute. Aedeagus (Fig. 29L, M ) with ventral margin of apodemal processes forming rounded lobe produced ventrally; shaft slightly twisted laterally, bearing pair of processes directed ventrally, with 1\5 length of shaft.

Measurements.

Total length: holotype male 7.2 mm; paratypes, males (n = 12) 7.0-7.2 mm, females (n = 11) 7.7-7.8 mm.

Description.

Head, in frontal view (Fig. 29A ), frons 1.2 × wider than long; frontogenal suture distant from eye margin by approximately half maximum width of clypeus; clypeus 1.2 × wider than long; lateral margins straight, slightly convergent apically; apex straight. Head, in lateral view (Fig. 29C ), crown-face transition thin, with 3 transverse carinae; clypeus not inflated. Forewing (Fig. 29D ) with apex of anal veins bifid. Profemur AV row with 5-6 setae; PV row with 1 seta near apex. Protibia PD row with 3 setae and undifferentiated intercalary setae; PV row with 5 setae and undifferentiated intercalary setae. Metatibia PD, AD and AV rows with 23-25, 12 and 14-15 macrosetae respectively. Metatarsomere I 4 × longer than apical width; inner row of the ventral surface with 5 setae. Other characteristics as in generic description.

Coloration.

Head and thorax (Figs 29A, B , 32K, L ) yellowish-brown. Head (Fig. 29A ) with pair of small circular black maculae near posterior margin behind ocelli and wide longitudinal dark-brown band between ocelli. Face (Fig. 29B ) yellowish; antennal pit dark brown. Pronotum (Fig. 29A ) with black punctures; small black maculae near anterior margin, behind eye; proepimeron (Fig. 29C ) almost entirely black. Mesonotum (Fig. 29A ) with brown lateral angles and pair of small median brown spots near scutoscutelar suture. Forewing (Fig. 29D ) with brown veins; larger dark-brown maculae on apex of anal veins, outer discal cell, costal margin, cross veins of discal and apical cells; transverse brown stripe over subapical cells; apical cells smoky apically. Metatibia (Fig. 29C ) with cucullate bases of setae blacks.

Male terminalia.

Sternite VIII (Fig. 29E ) 1.3 × wider than long; lateral margins parallel; posterior margin straight. Valve (Fig. 29F ) 2 × wider than long; posterior margin rounded. Pygofer, in lateral view (Fig. 29G ), 1.7 × longer than maximum height; basodorsal process thin and short, extending ventrally for 1/5 height of lateral lobe; ventral margin rounded; posterodorsal and posteroventral margins straight and convergent posterad; apex truncated. Subgenital plate, in lateral view (Fig. 29G ), not reaching pygofer apex; in ventral view (Fig. 29H ), elongated, 3.5 × longer than wide, maximum width near median third; ventral surface near outer margin and dorsal surface near base with long filiform setae; lateral margins slightly rounded; apex rounded. Connective (Fig. 29I ) about as wide as long; anterior margin excavated; dorsal keel reduced; stem short. Style, in dorsal view (Fig. 29J ), with outer lobe developed and rounded; in lateral view (Fig. 29K ), blade narrow with approximately same width along entire length; ventral margin with apical third serrated; apex obliquely truncate, with dorsal process subacute. Aedeagus (Fig. 29L, M ) 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 rounded lobe produced ventrally; distal portion straight, apex broadened, slightly excavated and curved over the apex of shaft; shaft approximately cylindrical, strongly curved dorsally near base, with small basolateral expansion that surrounds the previous portion of the shaft; apex slightly twisted laterally, bearing pair of processes directed ventrally, with 1/5 length of shaft. Other characteristics as in generic description.

Female terminalia.

Sternite VII (Fig. 30A ) 1.9 × wider than long; posterolateral angles produced posterad as far as posterior margin; posterior margin excavated each side of median lobe which occupies the median third and is V-shape notched medially. Internal sternite VIII membranous. Pygofer (Fig. 30A, B ) 1.8 × longer than maximum height; ventral margin slightly rounded; dorsal margin straight; apex rounded. First valvifer (Fig. 30C ) triangular, 1.5 × longer than wide; anterior and dorsal margins straight; posterior margin slightly rounded. First valvula (Fig. 30C ) 6.2 × longer than wide; apex (Fig. 30D ) tapered and acute. Second valvula (Fig. 30E ) 4.7 × longer than wide; wider after mid-length; dorsal protuberance developed and rounded; dorsal margin (Fig. 30F ) with few minute rounded teeth; apex abruptly tapered, subacute. Second valvifer (Fig. 30G ) 2.5 × longer than wide. Gonoplac (Fig. 30G ) 3.3 × longer than wide; apex (Fig. 30H ) rounded. Other characteristics as in generic description.

Material examined.

Holotype male: Brazil: Paraná: " P. Grossa (V. Velha)- PR \ Reserva IAPAR Br376\ Brasil 01.IX.1986 \ Lev. Ent. Profaupar\ Malaise" (DZUP) . Paratypes: 1♀, same data as holotype except 15.IX.1986 (DZUP) ; 1♀, same data as holotype except 20.X.1986 (DZUP) ; 1♂, same data as holotype except 15.XII.1986 (DZUP) ; 1♀, same data as holotype except 12.I.1987 (DZUP) ; 1♀, same data as holotype except 30.III.1987 (MNRJ) ; 1♀, same data as holotype except 28.IX.1987 (DZUP) ; 1♂, same data as holotype except 05.X.1987 (MNRJ) ; 1♀, same data as holotype except 25.I.1988 (DZUP) ; 1♀, same data as holotype except 14.III.1988 (DZRJ) ; 1♀, same data as holotype except 21.III.1988 (DZUP) ; 1♂, " Brasil, Paraná, Parque \ Estadual de Vila Velha \ 25°13′5.9″S 50°2′31.2″W \ Malaise2 06.XII.1999 \ Provive" (DZUP) ; 1♂, same data as preceding except 15.IV.2002 (DZUP) ; 1♂, " Brasil, Paraná, Parque \ Estadual de Vila Velha \ 25°13′13.3″S 50°2′314.1″W \ Malaise3 28.II.2000 \ Provive" (DZRJ) ; 1♂, same data as preceding except 17.IV.2000 (DZUP) ; 1♀, same data as preceding except 22.IV.2002 (DZUP) ; 1♂, " Brasil, Paraná, Parque \ Estadual de Vila Velha \ 25°13′2.9″S 50°2′14.1″W \ Malaise4 20.XII.1999 \ Provive" (DZRJ) ; 1♂, same data as preceding except 24.I.2000 (DZUP) ; 1♂, same data as preceding except 07.I.2002 (DZUP) ; 1♀, same data as preceding except 12.XI.2001 (DZUP) ; 1♀, same data as preceding except 05.VIII.2002 (DZUP) ; 1♀, " Guarapuava - Paraná \ Est. Águas Santa Clara \ Brasil 14.IX.1987 \ Lev. Ent. Profaupar\ Malaise" (DZUP). - Minas Gerais : 1♂, " Brasil, MG, Botelhos,\ Corrego da Onca \ 21°40′90″S 46°22′05″W \ Malaise mata\ 21.II-30.III.2007 \ João Bass leg\ SISBIOTA - DIPTERA" (MZSP) ; 1♂, "Brasil, MG, Cabo Verde,\ Fazenda da Cata 598m \ 21°27′11″S 46°20′52″W \ 10-23.IX.2006 Malaise2\ mata Amorin, Ribeiro,\ Falaschi & Oliveira\ BIOTA-FAPESP" (MZSP) .

Etymology.

The new species name refers to the locality where many specimens were collected.

Remarks.

Coarctana vilavelha sp. nov. was strongly supported (SR = 98) as sister to C. nigromedia sp. nov. + C. asymmetrica sp. nov. by one synapomorphy 130:1, aedeagus with apodemal process with ventral margin forming a rounded lobe, and four homoplastic characters, as for example, 20:1, frontogenal suture distant from inner margin of eye by approximately half width of clypeus, and 114:1, subgenital plate with long filiform setae on ventral surface. The new species can be separated from C. nigromedia sp. nov. and C. asymmetrica sp. nov. by having the pygofer (Fig. 29G ) not excavated apically; the apex of style (Fig. 29K ) with a dorsal process subacute; and the aedeagal shaft (Fig. 29L, M ) slightly twisted laterally, bearing a pair of apical processes symmetrical in length.

Figures

Figure 29. Coarctana vilavelha sp. nov., holotype male. A head and thorax, dorsal view. B head, ventral view. C head and thorax, lateral view. D forewing. E sternite VIII, ventral view. F valve, ventral view. G pygofer, valve and subgenital plate, lateral view. H subgenital plate, ventral view. I connective, dorsal view. J style, dorsal view. K style, lateral view. L aedeagus, lateral view. M aedeagus, posterior view. Scale bars in mm.

Figure 30. Coarctana vilavelha sp. nov., paratype female. A distal portion of abdomen, ventral view. B distal portion of abdomen, lateral view. C first valvifer and first valvula, lateral view. D apical portion of first valvula. E second valvula, lateral view. F apical portion of second valvula. G second valvifer and gonoplac, lateral view. H apical portion of gonoplac. Scale bars in mm.

Figure 32. Species of Coarctana gen. nov., dorsal (left) and lateral (right) views. A, B C. punctata comb. nov., holotype female, NHRS GULI 000069783. C, D C. rana comb. nov., holotype male, OSU. E, F C. serpenta comb. nov., holotype male, AMNH. G, H C. striata sp. nov., holotype male, DZUP. I, J C. taurina sp. nov., holotype male, DZUP. K, L C. vilavelha sp. nov., holotype male, DZUP.