Nullana albinoi, Domahovski & Cavichioli, 2017

Domahovski, Alexandre Cruz & Cavichioli, Rodney Ramiro, 2017, Two new species of Nullana from southern Brazil (Hemiptera: Cicadellidae: Gyponini) with key to males, Zootaxa 4281 (1), pp. 207-218 : 208-209

Nullana albinoi sp. nov.

( Figs 1 –19)

Diagnosis. Style (Fig. 10) cleft forming two rami, ventral ramus narrow, produced posterad as far as dorsal portion, dorsal ramus three times wider than ventral ramus in lateral view.

Description. (male) length 8.1mm (n=5), (female) length 8.8mm (n=5). Head ( Fig. 1 ), in dorsal view, not produced; median length of crown approximately half interocular width; crown with transverse parallel striae; anterior margin of crown approximately parallel to posterior margin; transocular width of head near eight-tenths humeral width of pronotum. Ocelli equidistant between eyes and median line and near anterior margin of crown. Head (Fig. 2), in frontal view, with clypeus approximately 1.4 times longer than wide, lateral margins slightly divergent toward apex, apical margin straight; maxillary plates produced ventrally as far as apex of clypeus; frons approximately 1.2 times wider than long, separated from lateral margin of eye by short distance, slightly larger than diameter of antennal scape; frontogenal suture surpassing supra-antennal lobes and reaching anterior margin of crown, supra-antennal lobes carinate and oblique,. Head (Fig. 3), in lateral view, with crown-face transition thin with three clearly defined carinae. Pronotum, in lateral view, slightly convex and declivous, with transverse striae on disc and posterior third. Forewing (Fig. 4) without extra crossveins; appendix well developed and bordering first and second apical cells, wider than maximum width of first apical cell. Foreleg with femoral AD, AM and PD rows reduced and poorly defined, except for apical setae AD1, AM1 and PD1, respectively; AV and PV rows formed by few and sparse setae, AV row restricted to proximal half, IC row formed by slightly arched comb of fine setae, beginning at distal half of femur and extending to AM1; protibia with longitudinal carina near and anterior to AD row; AV row formed by long setae subequal in size; AD row with only minute setae; PD row with about ten setae; PV row developed, with about six setae. Hind leg with femoral setal formula 2:2:1; metatibia AD row with intercalary microsetae between macrosetae; PV row with setae of apical half, homogeneous in length and thickness, except for ticker apical seta; first tarsomere with two rows of setae on plantar surface, medial row with setae strongly reduced; apex with four or five platellae; second tarsomere apex with two apical platellae.

Coloration. Head and thorax (Figs 18, 19) yellow. Crown with two rounded black maculae behind ocelli. Face (Fig. 2) light yellow without maculae. Pronotum with four light yellow spots near anterior margin, behind ocelli and eyes, disc and posterior half darker yellow. Forewing (Fig. 4) translucent, heavily mottled with yellow in reticulate pattern resembling numerous extra crossveins, except on apex and near costal margin; anal margin with black maculae, apical cells with veins black, appendix smoky with white macula on anterior third. Legs yellow with black maculae.

Male terminalia. Sternite VIII (Fig. 5) 1.4 times wider than long; posterolateral angles rounded, posterior margin with small V-shaped notch at middle. Valve (Fig. 6) 1.7 times wider than long; integument thickening present only on anterior margin; posterior margin rounded. Pygofer (Fig. 7) 1.8 times longer than maximum height; dorsal margin with attenuate inner process at base; dorsoapical margin approximately straight; ventroapical margin slightly rounded; apex tapered; macrosetae dispersed on posterior half. Subgenital plate (Fig. 7) produced posterad as far as apex of pygofer; in ventral view (Fig. 8), 3.6 times longer than wide, with small setae on external margin and apex; external margin slightly rounded near base; internal margin straight; apex abruptly tapered. Connective (Fig. 9) T-shaped, basal width twice length of stalk; stalk longer than wide; apex directed posterad. Style (Fig. 9), in dorsal view, with outer lobe reduced; in lateral view (Fig. 10), ventral margin not serrated, blade narrow near base and cleft near middle forming two rami, ventral ramus narrow, produced posterad as far as dorsal portion, apex acute, dorsal ramus three times wider than ventral portion, apex acute and curved dorsally. Aedeagus (Figs 11, 12) with preatrium strongly developed; dorsal apodeme developed laterodorsally, with divergent apex; shaft short, wider near base and slender at apex, with small pair of spinelike subapical processes; apex membranous, bent ventrally.

Female terminalia. Sternite VII ( Fig. 13 ) 1.8 times wider than long; posterolateral angles rounded, posterior margin produced and deeply excavated at middle. Sternite VIII membranous. Female pygofer (Fig. 14) 1.8 times longer than maximum height; apex rounded; macrosetae dispersed on dorsoapical fourth and ventroapical half.. First valvifer (Fig. 15) 1.2 times higher than long, margins straight. First valvulae (Figs 15) slightly curved dorsally; with approximately the same height along its entire length; apical third with dorsal sculptured area strigate; apex acute. Second valvulae (Fig. 16) higher near mid-length; apical portion with dorsal margin with small teeth, prominent anterad and evanescent posterad; apex tapered and acute. Second valvifer (Fig. 17) 2.2 times longer than wide. Third valvulae (Fig. 17) with dorsoapical margin straight; ventral margin with only short setae; posteroventral margin slightly rounded; apex rounded.

Material examined. Holotype male: " Brasil, Paraná, S.[São] J.[ José ] dos\ Pinhais , 25°36'18"S \ 49°11'37"W 880m \ 03.XII.2011 Sweep \ A. C. Domahovski leg."; Paratypes: 1 ♀, same data as the holotype except 12.X.2011 ; 2 ♀, same data as the holotype except 05.XI.2011 ; 1 ♀, same data as the holotype except 27.XI.2011 ; 1 ♀, same data as the holotype except 30.XI.2011 ; 3 ♀, same data as the holotype except 21.XII.2011 ; 1 ♂, same data as the holotype except 08. II.2012 ; 1 ♀, same data as the holotype except 21.III.2014 ; 1 ♀, same data as the holotype except 17.IX.2014 ; 1 ♀, same data as the holotype except 12.XII.2014 ; 1 ♀, 1 ♂, same data as the holotype except 15.XII.2014 ; 1 ♂, same data as the holotype except 10.I.2015 ; 1 ♂, "S. [São] José Pinhais - PR \ Brasil (BR277- Km 54)\ 22.III.1985 \ C.I.I.F. (Luminosa) ; 1 ♀, " Brasil, Paraná, São José \ dos Pinhais, BR 277- Km 54\ ( Torre - Telepar ) 1060m \ 25°33'18"S 48°58'22"W \ Malaise 01-15.X.2015 \ ACD & RRC leg." ; 1 ♂, "Morretes-PR Brasil \ ( IAPAR)\ 09.V.1985 \ C.I.I.F. (Luminosa)" ; 1 ♀, same data as preceding except 18.I.1985 ; 1 ♀, same data as preceding except 18.II.1985 ; 1 ♂, " Brasil, PR, Antonina \ Res. Rio Cachoeira \ 25,316°S 46.696°W \ 50m, 05- 10.XI.2015 \ Luminosa solo\ Entomologia-UFPR" ; 1 ♀, " Tijucas do Sul, PR, Brasil \ Br 376 Km 655 879m -25.835°\ -49.048° 07.X.2011 \ M.L.Monné & R.R. Cavichioli " ; 1 ♀, same data as preceding except 27a29.IX.2011 F.L. Santos leg. ; 2 ♀, " Brasil: PR, Tijucas \ do Sul Br 376 Km 655\ -25.835°\ -49.048°\ 879m, 1a3-iv-2011 \ F. L. Santos leg." ; 1 ♀, " Campo Largo -\ PR - Brasil \ (Est. Faxina Km4)", " 01/XI/2002 (Luz)\ Excursão Fauna \ Local - DZOO ".

Remarks. Nullana albinoi sp. nov. is most similar to Nullana huallaga in having the style cleft forming two rami. However, in the new species the style is more robust and the ventral ramus is as long as the dorsal ramus. In N. huallaga the style is elongated and the ventral ramus is one third the length of the dorsal ramus.

Figures

FIGURES 1 ─ 12. N. albinoi sp. nov., holotype male. 1, head and thorax, dorsal view. 2, head, frontal view. 3, head and thorax, lateral view. 4, forewing. 5 – 12, male terminalia: 5, sternite VIII, ventral view. 6, valve, anterior view. 7, pygofer, valve and subgenital plate, lateral view. 8, subgenital plate, ventral view. 9, style and connective, dorsal view. 10, style, lateral view. 11, aedeagus, lateral view. 12, aedeagus posterior view. Scale bars: 1 – 3 = 1.0 mm, 4 = 2.0 mm, 5 – 10 = 0.5 mm, 11 – 12 = 0.25 mm.

FIGURES 13 ─ 19. 13 – 17, N. albinoi sp. nov., terminalia of female paratype. 13, sternite VII and pygofer, ventral view. 14, pygofer and valvulae, lateral view. 15, first valvifer and first valvulae, lateral view. 16, second valvulae, lateral view. 17, second valvifer and third valvulae, lateral view. 18 – 19, N. albinoi sp. nov. holotype habitus. 18, dorsal view. 19, lateral view. Scale bars: 13 – 17 = 1.0 mm, 18 – 19 = 2 mm.