Effossana circumnota, 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

Effossana circumnota sp. nov.

Figs 37 , 38 , 42C, D

Diagnosis.

Head, in lateral view (Fig. 37C ), crown-face transition thick. Pygofer (Fig. 37G ) without processes. Style, in lateral view (Fig. 37K ), ventral margin with subapical process truncated apically and serrated on anterior margin. Aedeagus (Fig. 37L ) with shaft very long, basal portion strongly curved forming wide ring.

Measurements.

Total length: holotype male 9.2 mm; paratypes, males (n = 28) 8.7-10.3 mm, females (n = 12) 9.6-10.4 mm.

Coloration.

Head and thorax (Figs 37A-B , 42C, D ) yellowish brown. Crown (Fig. 37A ) with coronal suture black. Face (Fig. 37B ) gena yellow, brown maculae near subgenal suture, ventral and inner margins of eye. Pronotum (Fig. 37A ) with brown punctures, pair of elongated and oblique black maculae behind ocelli, near anterior margin; posterior margin with black transverse band; proepimeron (Fig. 37C ), with dorsal half black. Mesonotum (Fig. 37A ) with yellow markings, pair of black ring-shaped maculae near lateral angles and pair of rounded black spots, near scutoscutelar suture. Scutellum (Fig. 37A ) black with large yellow macula. Forewing (Fig. 37D ) strongly marked by dark-brown mottling; membrane translucent light yellow; veins brown outlined by dark brown. Metatibia (Fig. 37C ) with cucullate bases of setae blacks.

Description.

Head, in dorsal view (Fig. 37A ) transocular width 8.2 tenths of humeral width of pronotum. Head, in frontal view (Fig. 37B ), frons 1.5 × longer than wide; clypeus 1.2 × longer than wide; lateral margins slightly divergent toward apex. Head, in lateral view (Fig. 37C ), crown-face transition thick, smooth medially and with few striae near of eye. Forewing (Fig. 37D ) with appendix reduced, narrower than the width of the first apical cell. Protibia AD row without differentiated setae. Metatibia PD, AD and AV rows with 23-26, 12-13 and 16-17 macrosetae respectively. Metatarsomere I moderately elongated, about 3 × longer than apical width; inner row of ventral surface with 5-6 setae; pecten with 6-7 platellae. Metatarsomere II pecten with 3 platellae. Other characteristics as in generic description.

Male terminalia.

Sternite VIII (Fig. 37E ) 1.7 × wider than long, lateral margins weakly rounded; posterior margin with median third deeply excavated and truncate. Valve (Fig. 37F ) 3.2 × wider than long; posterior margin narrowly excavated; in lateral view, strongly convex. Pygofer, in lateral view (Fig. 37G ), 1.8 × longer than maximum height; anteroventral margin rounded; posterodorsal and posteroventral margins slightly rounded; apex broadly rounded. Subgenital plate, in ventral view (Fig. 37H ), elongated, 4.4 × longer than wide, maximum width near half length; inner margin straight; outer margin slightly rounded; apex tapered and rounded. Connective (Fig. 37I ) with thin arms. Style, in lateral view (Fig. 37K ), with blade narrow tapered toward apex; ventral margin with subapical process truncated apically and serrated on anterior margin; apex slightly curved dorsally, abruptly tapered, and acute. Aedeagus (Fig. 37L, M ) dorsal apodeme reduced, dorsal margin excavated, lateral margins not projected laterally; apodemal process elongated and curved dorsally, dorsal margin excavated medially, apex rounded; shaft cylindrical and very long, basal portion strongly curved forming wide ring, portion after the ring straight; apex twisted laterally, with two pairs of processes directed dorsally: one apical very short and one subapical 3 × longer than the apical. Other characteristics as in generic description.

Female terminalia.

Sternite VII (Fig. 38A ) 1.7 × wider than long; posterolateral angles produced as far as posterior margin; posterior margin deeply V-shaped excavated each side of triangular median lobe. Internal sternite VIII membranous. Pygofer (Fig. 38A, B ) 1.9 × longer than maximum height; apex rounded. First valvifer (Fig. 38C ) sub-rectangular 1.2 × wider than long; anterior and dorsal margins straight; posterior margin rounded. First valvula (Fig. 38C ) 4.1 × longer than wide. Second valvula (Fig. 38E ) 4 × longer than wide; dorsal protuberance rounded. Gonoplac (Fig. 38G ) 3.6 × longer than wide. Other characteristics as in the diagnosis of the genus.

Etymology.

The new species name refers to the ringed basal portion of the aedeagal shaft.

Material examined.

Holotype male: Brazil: Goiás: "Brasil, GO, Novo Mundo,\ Armadilha Malaise\ 13.9292°S 49.9716°W,\ 282m, 05.III.2011 " (DZUP) . Paratypes: 1♂, same data as holotype (DZUP) ; 1♂, 2♀, same data as holotype except 26.XI.2010 (DZUP) ; 1♀ same data as holotype except 03.XII.2010 (DZRJ) ; 1♀, same data as holotype except 10.XII.2010 (DZUP) ; 1♂, same data as holotype except 03.I.2011 (DZRJ) ; 2♀, same data as holotype except 10.III.2012 (DZUP) ; 4♂, 1♀, same data as holotype except 06.X.2012 (3♂ DZUP, 1♂, 1♀ MNRJ) ; 18♂, " Brasil, Goiás \ Sao Domingos \ Fazenda Cipasa \ 18-IX a 2-X-93", “Dionísio ", “Malaise”, " MPEG 05029105, 05029106, 05029109, 05029113-05029117, 05029119-05029121, 05029123-05029128 and 05029132" (MPEG). - Distrito Federal : 1♂, " Brasil, Brasília - DF, Faz. \ Agua Limpa , 15.9594°S 47.9328°W, 31.V.2012 \ Malaise, A.J.C. Aguiar" (DZUP) ; 1♀, " Brasil, Brasília - DF,\ Fazenda Agua Limpa ,\ Cerrado , malaise, 09-\ 23.XI.2017, J.R.P. Luz " (DZUP) ; 1♀, same as preceding except 22.XII.2017 (DZUP). - Piauí: 1♂, 2♀, " Brasil: Piauí, Corrente , PARNA \ das Nascentes do Rio Parnaiba \ - 10.43412 S, - 45.16392 W Tri- \ lha 1, 18.viii-24.ix.2021 Malaise \ R.N.Guedes & H.C.Onody cols" (1♂, 1♀ DZUP, 1♀ UESPI). - Tocantins : 1♂, " Brasil, Tocantins, Palmas \ Taquaruçu, Fazenda \ Encantada 10°15′2.3″S 48°07′33.6″W Malaise \ 03-10.viii.2012 Krolow,\ T.K. & Lima, H.I.L. leg." (DZUP). - Minas Gerais : 1♀, " Brasil, Minas \ Gerais , Águas \ Vermelhas xii.1983 \ M. Alvarenga leg." (DZUP) .

Remarks.

Effossana circumnota sp. nov. was recovered as sister to E. intrinseca sp. nov. with high branch support (SR = 99), sustained by one synapomorphy, 134:2, aedeagal shaft with basal portion directed anterad, and four homoplasies, as for example: 58:0, forewing with appendix reduced; and 135:0, aedeagal shaft with apical portion straight in lateral view. Effossana circumnota sp. nov. can easily be separated from E. intrinseca sp. nov. by the pygofer (Fig. 37G ) without processes and the style (Fig. 37K ) with ventral margin of blade forming a truncated subapical process.

Figures

Figure 37. Effossana circumnota 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 38. Effossana circumnota 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 42. Species of Effossana gen. nov., dorsal (left) and lateral (right) views. A, B E. assimulata sp. nov., holotype male, DZUP. C, D E. circumnota sp. nov., holotype male, DZUP. E, F E. fructa comb. nov., holotype male, USNM. G, H E. gatuna comb. nov., holotype male, OSU.