Costanana luzi, Domahovski & Cavichioli, 2023

Domahovski, Alexandre C. & Cavichioli, Rodney R., 2023, Eight new species of Costanana DeLong & Freytag (Hemiptera: Cicadellidae: Gyponini): taxonomic changes, key to males, and description of Metacostana gen. nov., European Journal of Taxonomy 889 (1), pp. 1-53 : 15-17

Costanana luzi sp. nov.

urn:lsid:zoobank.org:act:7C5C362D-1771-4550-A0BC-D58A2C2A80C2

Figs 6 , 11G–H

Diagnosis

Coloration ( Fig. 11G ) of head and pronotum reddish-brown without black maculae, forewing costal margin with narrow light yellow macula on anterior third, depigmented (white) macula on apical third absent. Style ( Fig. 6K ) with dentiform process near base of blade; dorsal margin strongly produced medially, forming a triangular process. Aedeagus ( Fig. 6L–M ) without processes near base; shaft compressed, with pair of long subapical processes directed basally, branched near base, with ventral ramus half as long as dorsal ramus; apex rounded with pair of short spiniform processes directed dorsally.

Etymology

The new species name is in honor to Prof. Dr José Roberto Pujol Luz of the Universidade de Brasília who collected the holotype.

Material examined

Holotype BRAZIL • ♂; “Brasil, Brasília - DF [Distrito Federal], \ Fazenda Água Limpa , \ M. [Mata de] Galeria, malaise, 09- \ 23.XI.2017, J.R.P. Luz ”; DZUP 215489 .

Description

Male

MEASUREMENTS. Holotype male: total length 7.1 mm.

COLORATION. Dorsal portion of head and thorax reddish ( Figs 6A, C , 11G ); ventral portion yellow ( Figs 6B–C , 11H ). Crown ( Fig. 6A ) without markings; eyes and ocelli red. Pronotum ( Fig. 6A ) with lateral margins black. Scutellum yellowish. Face ( Fig. 6B ) with frons reddish. Forewing ( Fig. 6D ) costal margin dark brown, long and slender yellow macula on anterior half and apical fourth; appendix smoky with median whitish macula. Legs ( Figs 4C , 11H ) yellow, without black markings.

STRUCTURE. Head in dorsal view ( Fig. 6A ): median length of crown as long as half interocular width; transocular width of head 7.5 tenths of humeral width of pronotum; in lateral view ( Fig. 6C ), with anterior margin moderately thin, with 5–6 well developed carinae. Forewing ( Fig. 6D ) with inner discal cell very short, one-third as long as outer discal cell; apex slightly tapered. Profemur AV row with 4–5 setae restricted to basal half and PV row with 1 apical seta. Protibia PD row with 3 long setae and apical PD 1 seta developed; PV row developed, with 8 setae increasing in thickness and length towards apex. Metatibia rows PD, AD, and AV with 18–19, 13, and 12 macrosetae, respectively. Metatarsomere I apex with 3 platellae. Metatarsomere II apex with 2 apical platellae. Other characteristics as in the generic description.

MALE TERMINALIA. Sternite VIII ( Fig. 6E ) 1.3× as wide as long; lateral margins excavated at base, forming a triangular projection; apex broadly rounded. Valve ( Fig. 6F ) 3.1× as wide as long; posterior margin almost straight. Pygofer ( Fig. 6G ), in lateral view, 1.7× as long as maximum height; ventral margin with rounded protrusion near midlength; posterodorsal and ventral margins rounded; macrosetae distributed on dorsoapical quadrant; apex slightly tapered and rounded. Subgenital plate ( Fig. 6G ), in lateral view, surpassing half length of pygofer; in ventral view ( Fig. 6H ), 3.5× as long as wide; inner margin straight; external margin rounded on basal half; external margin with long filiform setae; apex strongly tapered and weakly sclerotized. Connective ( Fig. 6I ) Y-shaped; arms produced laterally; stalk shorter than maximum width of arms, widened apically; median keel weakly developed. Style ( Fig. 6J ), in dorsal view, with outer lobe reduced and rounded; apical portion directed outward; in lateral view ( Fig. 6K ), ventral margin not serrated, with dentiform process near base of blade; dorsal margin strongly produced on basal half, forming a triangular process; apical portion slender, curved dorsally; apex acute. Aedeagus ( Fig. 6L–M ) preatrium not developed; dorsal apodeme strongly elongated laterally, forming divergent and truncated apices; shaft compressed, curved dorsally; pair of long subapical processes directed basally, branched near base, ventral ramus half as long as dorsal ramus; apex rounded with pair of short spiniform processes directed dorsally.

Female

Unknown.

Remarks

Costanana luzi sp. nov. is most similar to C. praecellens in having the same color pattern ( Figs 11G–H , 13C–D ) and the aedeagal shaft compressed and bearing a pair of subapical processes branched near the base ( Fig. 6L ), and the apex of the aedeagus rounded with pair of short spiniform processes directed dorsally ( Fig. 6M ). The new species can easily be separated from C. praecellens in having the style with a process on the dorsal margin of the blade and the distal portion longer and distinctly more curved ( Fig. 6K ), and the branched subapical process of the aedeagus with the ventral ramus half as long as the dorsal ramus ( Fig. 6L–M ).

Figures

Fig. 6. Costanana luzi sp. nov., holotype, ♂ (DZUP 215489). A. Head and thorax, dorsal view. B. Head, ventral view. C. Head and thorax, lateral view. D. Forewing. E–M. Male terminalia. E. Sternite VIII, ventral view. F. Valve, anterior 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.

Fig. 11. Habitus of new species of Costanana DeLong & Freytag, 1972. Left, dorsal view; right, lateral view. A–B. C. alata sp. nov., holotype, ♂ (DZUP 215484). C–D. C. bifida sp. nov., holotype, ♂ (DZUP 215493). E–F. C. cifi sp. nov., holotype, ♂ (DZUP 215484). G–H. C. luzi sp. nov., holotype ♂ (DZUP 215489). Scale bars in mm.

Fig. 4. Costanana cifi sp. nov., holotype, ♂ (DZUP 215484). A. Head and thorax, dorsal view. B. Head, ventral view. C. Head and thorax, lateral view. D. Forewing. E–M. Male terminalia. E. Sternite VIII, ventral view. F. Valve, anterior 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.

Fig. 13. Habitus of species of Costanana DeLong & Freytag, 1972. Left, dorsal view; right, lateral view. A–B. C. flavina DeLong & Freytag, 1972 (DZUP). C–D. C. praecellens (Stål, 1862) (DZUP). E–F. C. santana DeLong & Wolda, 1983 (DZUP). Scale bars in mm.