Rectapona nigrifascia, Domahovski & Cavichioli, 2018

Domahovski, Alexandre C. & Cavichioli, Rodney R., 2018, Two new remarkable genera and two new species of Gyponini (Hemiptera: Cicadellidae: Iassinae) from Brazil, European Journal of Taxonomy 476, pp. 1-17 : 13-15

Rectapona nigrifascia gen. et sp. nov.

urn:lsid:zoobank.org:act:F9BB9E1A-B66D-4AF6-B1D2-80E4278F9EEB

Figs 23 –43 , 46–47

Diagnosis

As for genus.

Etymology

The new species name nigrifascia comes from the Latin term ‘ nigro faciem ’. It refers to the black coloration of the face.

Material examined

Holotype

BRAZIL: ♂, South Region, Paraná, São José dos Pinhais , “ Brasil, PR, S.[ São ] J. [ José ] dos Pinhais \ Rep. [ Represa ] Guaricana, Malaise susp. [suspensa] \ 25.7305º S 48.9535º W, 495 m \ 01-20.II.2018, Muniz, Melo \ Cavichioli & Domahovski ” ( DZUP 215371 ) .

Paratypes

BRAZIL: 1 ♀, “ Brasil, Paraná, Morretes \ P. [ Parque ] E. [ Estadual ] do Marumbi , cami-\ nho para Estação Eng. [ Engenheiro ]\ Lange , 330 m 25º25′41″ S \ 48º54′55″ W 27.IX.2016 \ Sweep, A.C. Domahovski ” ( DZUP 215372 ) ; 1 ♀, “ Brasil, SP, Ubatuba,\ Parque Estadual da\ Serra do Mar YPT [Yellow plate trap]\ 23º17′49″ S 44º47′31″ W \ 800 m 21.II-2.III.2007 \ E. F. Santos & C. P. Scott ” ( MZSP) .

Description

MORPHOLOGY. External morphological characters as in generic description.

Male

COLORATION. Crown ( Fig. 23 ) yellow, tinged with red; anterior and posterior margins red. Face ( Fig. 24 ) black; lora margined with yellow; gena yellowish below ventral margin of eye; frons with a transversal red stripe below crown margin; antenna yellow. Pronotum ( Fig. 23 ) golden-yellow; lateral and anterior margins yellow; laterally ( Fig. 25 ), proepimeron black with dorsal margin yellow. Mesonotum ( Fig. 23 ) golden-yellow. Forewing ( Fig. 26 ) clavus opaque; basal portion greenish-yellow margined with yellow; apex of 1A vein dark-brown; apex dark-brown; corium translucent with black veins on basal portion and white veins on apical portion; costal margin golden-yellow with a longitudinal black stripe from wing base to base of external discal cell; apical half of subapical cells and apical cells dark-brown; appendix dark-brown with base and apex black. Legs (Fig. 46) with coxae black; femurae black with apex yellow; pro and mesotibiae yellow; meta tibia yellow with distal half black, except dorsal surface; tarsomeres yellow, exept hind leg tarsomeres black with apex of third tarsus and pretarsus yellow. Abdome with dorsum red with lateral margins of each terguite black; venter black with laterotergite III orange, posterior margin of each laterotergite and sternite yellowish-orange, sternite VIII entirely black.

TERMINALIA. Sternite VIII ( Fig. 27 ) 1.2 times as wide as long, hiding basal half of subgenital plates; lateral margins rounded; posterior margin emarginated. Valve ( Fig. 28 ) rectangular, 1.5 times as wide as long; integument thickening present only on dorsal margin; ventral margin emarginated. Pygofer ( Fig. 29 ) simple, without processes, about 1.8 times as long as maximum height laterally; integument thickening present parallel to anterodorsal margin and continuous with the integument thickening of valve; ventral margin straight; posterodorsal and posteroventral margins slightly convergent posterad; apex rounded. In lateral view, subgenital plate ( Fig. 29 ), not produced posteriorly as far as pygofer apex; apex curved dorsally; ventrally ( Fig. 30 ) elongated, five times as long as wide, with setae on dorsal surface near and on external margin; internal and external margins straight, parallel on base and mid-portion; apex tapered and subacute. Connective ( Fig. 31 ) triangular dorsally, wider than long; arms wide; stalk two times as wide as long; apex tapered; laterally ( Fig. 32 ) arms curved dorsally; stalk flat. In dorsal view, style ( Fig. 31 ) with outer lobe small, rounded; laterally ( Fig. 33 ) elongate, with apodeme as long as blade; ventral margin serrated medially, approximately same height along its entire length; apex acute, curved dorsally. Aedeagus ( Figs 34–35 ) with preatrium strongly developed, laterally constricted at base; dorsal apodeme strongly developed dorsolaterally; atrial processes absent; shaft short, flattened dorsoventrally, a pair of slender processes near base, directed posterad, with two subapical spine-like processes on dorsal margin; ventral margin near base with a single short, robust process with blunt triangular apex, directed posterad; shaft apex rounded, without processes.

Female

COLORATION. Pronotum (Fig. 47) with proepimeron golden-yellow with dorsal margin yellow. Face black; gena yellowish-orange around eye; frons with a transversal orange stripe below crown margin and frontogenal suture. Forewing (Fig. 47) with corium with veins yellow on basal portion of wing, except by cross veins of discal cells dark-brown; costal margin greenish-yellow without longitudinal black stripe from wing base to base of external discal cell. Hind leg tarsomeres grey with base of first and apex of third tarsus and pretarsus yellow. Abdomen with dorsum orange with lateral margins of each terguite yellow; venter ( Fig. 36 ) yellow with sternites III to VII with mid-portion black; pygofer brown. Other colorations as in male description.

TERMINALIA. Sternite VII ( Fig. 36 ) 1.8 times as wide as long; lateral angles rounded; posterior margin excavated laterad of broad median lobe, which occupies median third and is not produced posteriorly as far as lateral angles. Sternite VIII membranous. Pygofer ( Figs 36–37 ) short, about 1.7 times as long as maximum height; apex rounded; macrosetae dispersed on posterior half. First valvifer ( Fig. 38 ) 1.2 times as high as long, anterior, dorsal and posterior margins straight; posteroventral corner rounded. First valvula ( Fig. 38 ) wide, slightly curved dorsally; about 5.1 times as long as high; same height along its entire length; apex ( Fig. 39 ) tapered, with sculptured area strigate; apex acute. Second valvula ( Fig. 40 ) 4.8 times as long as high; higher near mid-length; apical portion ( Fig. 41 ) dorsal margin with small teeth evanescent posterad; apex acute. Gonoplac ( Fig. 42 ) 3.8 times as long as high, only with microsetae; ventral and dorsoapical margins straight; posteroventral margin rounded; apex ( Fig. 43 ) subacute.

Remarks

Some polymorphism in the forewing venation was observed in the studied specimens: the holotype has an extra crossvein on base of the forth apical cell of both wings; the paratype from the state of Paraná has an extra crossvein on the apex of the inner anteapical cell of the left wing and the paratype from the state of São Paulo does not have extra crossveins.

Figures

Figs 23–35. Rectapona nigrifascia gen. et sp. nov., holotype, ♂ (DZUP 215371). 23. Head and thorax, dorsal view. 24. Head, frontal view. 25. Head and thorax, lateral view. 26. Forewing. 27–35. Male terminalia. 27. Sternite VIII, ventral view. 28. Valve, anterior view. 29. Pygofer, valve and subgenital plate, lateral view. 30. Subgenital plate, ventral view. 31. Style and connective, dorsal view. 32. Connective, lateral view. 33. Style, lateral view. 34. Aedeagus, lateral view. 35. Aedeagus, posterior view. Scale bars: 23–25 = 1.0 mm; 26 = 2.0 mm; 27–31, 33 = 0.5 mm; 32, 34–35 = 0.25 mm.

Figs 36–43. Rectapona nigrifascia gen. et sp. nov., paratype, ♀ (DZUP 215372), terminalia. 36. Sternite VII and pygofer, ventral view. 37. Pygofer and valvulae, lateral view. 38. First valvifer and first valvula, lateral view. 39. Apex of first valvula, lateral view. 40. Second valvula, lateral view. 41. Apex of second valvula, lateral view. 42. Second valvifer and gonoplac, lateral view. 43. Apex of gonoplac. Scale bars: 36–37 = 1.0 mm; 38, 40, 42 = 0.5 mm; 39, 41, 43 = not to scale.

Figs 23–35. Rectapona nigrifascia gen. et sp. nov., holotype, Ƌ (DZUP 215371). 23. Head and thorax, dorsal view. 24. Head, frontal view. 25. Head and thorax, lateral view. 26. Forewing. 27–35. Male terminalia. 27. Sternite VIII, ventral view. 28. Valve, anterior view. 29. Pygofer, valve and subgenital plate, lateral view. 30. Subgenital plate, ventral view. 31. Style and connective, dorsal view. 32. Connective, lateral view. 33. Style, lateral view. 34. Aedeagus, lateral view. 35. Aedeagus, posterior view. Scale bars: 23–25 = 1.0 mm; 26 = 2.0 mm; 27–31, 33 = 0.5 mm; 32, 34–35 = 0.25 mm.