Effossana tenuemarginata, 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 tenuemarginata sp. nov.

Figs 41 , 43G, H

Diagnosis.

Head, in lateral view (Fig. 41C ), crown-face transition thin. Pygofer (Fig. 41G ) without processes. Style, in lateral view (Fig. 41K ), with blade short, dorsal margin forming conspicuous process directed dorsally, flattened laterally and abruptly tapered apically. Aedeagus (Fig. 41L, M ) apodemal processes narrow and straight, almost as long as shaft, gradually tapered toward apex; shaft with pair of processes directed dorsally, anterior margin bearing a small spiniform process near mid-length.

Measurements.

Total length: holotype male 9.7 mm; paratypes, males (n = 5) 9.7-10.3 mm.

Coloration.

Head and thorax (Figs 41A-B , 43G-H ) reddish-brown. Crown (Fig. 41A ) with pair of rounded black spots near posterior margin, behind ocelli. Face (Fig. 41B ) without maculae. Pronotum (Fig. 41A ) with black punctures; larger black spots near anterior margin, behind eye; humeral angels with a small yellow macula; posterior margin with poorly defined dark brown transverse band; proepimeron (Fig. 41C ), with transverse black stripe below pronotal carina. Mesonotum (Fig. 41A ) with three pairs of yellow spots: two pairs near anterior margin and one near scutoscutelar suture. Scutellum (Fig. 41A ) with pair of large yellow spots. Forewing (Fig. 41D ) strongly marked by dark-brown mottling and yellow maculae; membrane translucent brown; veins dark brown. Metatibia (Fig. 41C ) with cucullate bases of setae blacks.

Description.

Head, in dorsal view (Fig. 41A ), transocular width 8.1 tenths of humeral width of pronotum. Head, in frontal view (Fig. 41B ), frons 1.3 × longer than wide; clypeus 1.3 × longer than wide; lateral margins parallel. Head, in lateral view (Fig. 41C ), crown-face transition thin, with 5 transverse striae. Forewing (Fig. 41D ) with appendix developed, as wide as first apical cell maximum width. Protibia AD row without differentiated setae. Metatibia PD, AD and AV rows with 23-24, 12 and 17-19 macrosetae respectively. Metatarsomere I elongated, about 4 × longer than apical width; inner row of the ventral surface with 8-10 setae; pecten with 4 platellae. Metatarsomere II pecten with 2 platellae. Other characteristics as in generic description.

Male terminalia.

Sternite VIII (Fig. 41E ) 1.6 × wider than long, lateral margins parallel; posterior margin with deep rounded excavation. Valve (Fig. 41F ) 3 × wider than long; posterior margin narrowly excavated, in lateral view, weakly convex. Pygofer, in lateral view (Fig. 41G ), 1.8 × longer than maximum height; anteroventral margin rounded; posterodorsal and posteroventral margins straight and slightly convergent posterad; apex broadly rounded. Subgenital plate, in ventral view (Fig. 41H ), elongated, 4.7 × longer than wide, maximum width near half length; inner margin straight; outer margin slightly rounded; apex rounded. Connective (Fig. 41I ) with arms moderately robust. Style, in lateral view (Fig. 41K ), with blade short, widened towards apex; ventral margin straight and serrated on apical 2\3; dorsal margin forming conspicuous process directed dorsally, flattened laterally and abruptly tapered apically, forming acute small tip curved anterad; apex rounded. Aedeagus (Fig. 41L, M ) dorsal apodeme developed, dorsal margin slightly excavated, lateral margins weakly projected dorsolaterally; apodemal process elongated and narrow, almost as long as shaft, slightly curved dorsally and gradually tapered toward apex; shaft very long, slightly flattened dorsoventrally, basal portion curved, posterior portion almost straight; apex truncated, with pair of processes directed dorsally, anterior margin bearing a small spiniform process near mid-length. Other characteristics as in generic description.

Female.

Unknown.

Etymology.

The new species name refers to the crown-face transition thin.

Material examined.

Holotype male: Brazil: Rondônia: " Brasil, Rondônia, Porto \ Velho , Rio Madeira \ 09°35′29″S 65°02′57″W \ Malaise 04-17.I.2012 \ W. Datilo & G.R. Mazão” (MZSP) . Paratypes: 1♂, " Brasil, Rondônia, Porto \ Velho , Rio Madeira \ 09°26′08″S 64°48′09″W \ Malaise 18-29.VI.2011 \ Albuquerque & Ferreira" (MZSP) ; 1♂, same as preceding except 09°26′14″S 64°49′58″W (MZSP); 2♂, same as preceding except 09°35′29″S 65°02′57″W (DZUP). - Amazonas: 1♂, " Brasil: AM, Ipixuna, Rio Liberdade , Com. \ Sao Vicente no Estirao da Preta \ 07°21′47″S 071°52′07″W 175m \ 11-15.v.2011 Cavichioli,\ Gonçalves, Rafael\ & Takiya et al." (DZRJ) .

Remarks.

Effossana tenuemarginata sp. nov. resembles E. gatuna comb. nov. and E. scapa comb. nov. by the shape of aedeagus with the apodemal processes straight. However, E. tenuemarginata sp. nov. can be separated from E. gatuna comb. nov. and E. scapa comb. nov. by the style (Fig. 41K ), with blade short and dorsal margin forming a conspicuous process directed dorsally, flattened laterally and abruptly tapered apically.

Figures

Figure 41. Effossana tenuemarginata 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 43. Species of Effossana gen. nov., dorsal (left) and lateral (right) views. A, B E. gloma comb. nov., male, DZUP. C, D E. intrinseca sp. nov., holotype male, DZUP. E, F E. scapa comb. nov., holotype male, BMNH. G, H E. tenuemarginata sp. nov., holotype male, DZUP.