Effossana assimulata, 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 assimulata sp. nov.

Figs 35 , 36 , 42A, B

Diagnosis.

Head, in lateral view (Fig. 35C ), crown-face transition thin. Pygofer (Fig. 35G ) without processes. Subgenital plate, in ventral view (Fig. 35H ), narrow and long, inner and outer margins straight, slightly divergent toward apex. Style, in lateral view (Fig. 35K ), apex forming conspicuous process very thin and acute, directed posterodorsad. Aedeagus (Fig. 35L, M ) apodemal process sigmoid, elongated and narrow, almost as long as shaft; shaft very long, cylindrical, basal portion curved, posterior portion almost straight; apex truncated, with pair of processes directed dorsally bearing small spiniform process near base.

Measurements.

Total length: holotype male 9.9 mm; paratype, female (n = 1) 10.5 mm.

Coloration.

Head and thorax (Figs 35A, B , 42A, B ) yellowish brown. Crown (Fig. 35A ) with pair of rounded black spots near posterior margin, behind ocelli. Face (Fig. 35B ) without maculae. Pronotum (Fig. 35A ) with brown punctures; larger black maculae near anterior margin, behind eye; portion near anterior and lateral margins yellowish; posterior margin with black transverse band. Mesonotum (Fig. 35A ) with three pairs of yellow spots: two pairs near anterior margin and one near scutoscutelar suture; black maculae near lateral angles and median portion. Scutellum (Fig. 35A ) with pair of large yellow spots; apex black. Forewing (Fig. 35D ) strongly marked by dark-brown mottling and yellow maculae; membrane translucent brown; veins dark-brown. Metatibia (Fig. 35C ) with cucullate bases of setae blacks.

Description.

Head, in dorsal view (Fig. 35A ), transocular width 8.3 tenths of humeral width of pronotum. Head, in frontal view (Fig. 35B ), frons 1.3 × longer than wide; clypeus 1.3 × longer than wide; lateral margins parallel. Head, in lateral view (Fig. 35C ), crown-face transition thin, with 5 transverse striae. Forewing (Fig. 35D ) 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 16-17 macrosetae respectively. Metatarsomere I 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. 35E ) 1.5 × wider than long, lateral margins parallel; posterior margin with deep rounded excavation. Valve (Fig. 35F ) 2.5 × wider than long; posterior margin with median third excavated; in lateral view, strongly convex. Pygofer, in lateral view (Fig. 35G ), 2 × longer than maximum height; anteroventral margin rounded; posterodorsal and posteroventral margins straight and slightly convergent posterad; apex slightly tapered and rounded. Subgenital plate, in ventral view (Fig. 35H ), narrow and long, 6 × longer than wide, maximum width near apical portion; inner and outer margins straight, slightly divergent toward apex; apex rounded. Connective (Fig. 35I ) slender. Style, in lateral view (Fig. 35K ), blade moderately wide near basal half; ventral margin slightly produced ventrally and serrated, bearing small dentiform tooth; apex forming conspicuous process, very thin and acute, directed posterodorsad. Aedeagus (Fig. 35L, M ) dorsal apodeme developed, dorsal margin slightly excavated, lateral margins projected dorsolaterally; apodemal process sigmoid and narrow, almost as long as shaft; apex subacute; shaft very long, cylindrical, basal portion curved, posterior portion almost straight; apex truncated, with pair of processes directed dorsally, posterior margin bearing small spiniform process near base. Other characteristics as in generic description.

Female terminalia.

Sternite VII (Fig. 36A ) 1.5 × wider than long; posterolateral angles more produced than the posterior margin; posterior margin excavated, bearing a inconspicuous median lobe. Pygofer (Fig. 36A, B ) 1.9 × longer than maximum height; apex rounded. First valvifer (Fig. 36C ) as long as wide; lateral margins straight. First valvula (Fig. 36C ) 5.4 × longer than wide, basal portion strongly produced anterad; base slightly curved ventrally. Second valvula (Fig. 36E ) 3.7 × longer than wide; dorsal protuberance subacute. Gonoplac (Fig. 36G ) 3.4 × longer than wide. Other characteristics as in the diagnosis of the genus.

Etymology.

The new species name refers to the similarity to E. tenuemarginata sp. nov.

Material examined.

Holotype male: Brazil: Rondônia: "Vilhena, RO\ 27/XII/1986 \ C. Elias, leg.\ Polonoroeste" (DZUP) . Paratype: 1♀, same data as holotype except 19/XI/1986 (DZUP) .

Remarks.

Effossana assimulata sp. nov. was found as sister of E. tenuemarginata sp. nov. with moderate branch support (SR = 65), supported by a single homoplastic character, 8:1, crown-face transition in lateral view thin. The new species is similar to E. tenuemarginata sp. nov., and two other species not included in the phylogenetic analysis ( E. gatuna comb. nov. and E. scapa comb. nov.) by the shape of the aedeagus with shaft slender and very long, but not forming a conspicuous curvature at base like a ring. Effossana assimulata sp. nov. is easily recognized by the style (Fig. 35K ) with apex forming a slender process, thin and acute, directed posterodorsad; the aedeagus (Fig. 35L, M ) with apodemal process sigmoid; and the shaft with pair of apical processes with a small spiniform process near base.

Figures

Figure 35. Effossana assimulata 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 36. Effossana assimulata 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.