Cortona catanachae, Duan, Yani, Dietrich, Christopher H. & Zhang, Yalin, 2017

Duan, Yani, Dietrich, Christopher H. & Zhang, Yalin, 2017, Revision of the South American grassland leafhopper genus Cortona Oman (Hemiptera: Cicadellidae: Deltocephalinae: Deltocephalini) with description of four new species from Argentina, Zootaxa 4242 (2), pp. 359-371 : 363-364

Cortona catanachae sp. n.

( Figs 3–4 , 11 F)

Length. Male: 2.4–2.8 mm (n=6), female: 3.6–3.7 mm (n=5).

Morphology. Crown nearly as long as distance between eyes ( Fig. 3 A). Male anteclypeus slightly tapered, nearly parallel-sided ( Fig. 3 D).

Male genitalia. Subgenital plate long, lateral margin slightly concave ( Fig. 4 C). Style with articulating arm long; preapical lobe angulate; apophysis short, laterally curved ( Fig. 4 D). Connective shorter than aedeagus. Aedeagus broadly and deeply bifid apically, with pair of long slender appendages extended nearly to apex on dorsal surface, close to each other, distal depressed section of shaft with pair of lateral teeth directed basad subapically ( Fig. 4 F–H).

Female abdomen. Sternite VII with median lobe covering approximately half of posterior margin, trilobed, median lobe subtruncate and approximately same width as lateral lobes, with pair of arcs of dark pigment ( Fig. 11 F).

Material examined. Holotype: male, Argentina: Chaco, P.N. Chaco, 70 m, 26° 48′50" S, 59° 36′52" W, 12 Jan 2008, T. Catanach, vacuum, AR10–14 [ MLP] . Paratypes: 2 males, same data as holotype ; 1 male, Argentina: Chaco P.N. Chaco, 70 m, 26° 48′50" S, 59° 36′52" W, 10 Jan 2008, C. H. Dietrich, vacuum, AR10–5 ; 1 male, 5 females, Argentina: Chaco, P.N. Chaco, 70 m, 26° 48′50" S, 59° 36′52" W, 10 Jan 2008, C. H. Dietrich, vacuum, AR10–9 ; 1 male, Argentina: Chaco P.N. Chaco, 70 m, 26° 48′50" S, 59° 36′52" W, 10 Jan 2008, A. Gonçalves, vacuum, AR10–10 [ INHS] .

Etymology. This species is named for T. Catanach who collected the holotype.

Remarks. This species closely resembles C. minuta but differs in having the distal cleft portion of the aedeagus more elongate with concave lateral margins and lateral spines near the base, and the aedeagal appendages extended nearly to the apex ( Fig. 4 F–H).

Figures

FIGURE 3. Cortona catanachae sp. n. male: A, habitus, dorsal view; B, habitus, lateral view; C, forewing; D, face.

FIGURE 4. Cortona catanachae sp. n. A, male pygofer lobe, lateral view; B, male pygofer and segments X – XI, dorsal view; C, subgenital plate, ventral view; D, style, dorsal view; E, valve, ventral view; F, G, H, connective and aedeagus, dorsal, ventral and lateral view, respectively.

FIGURE 11. Females of Cortona: A – D, Cortona minuta: A, first valvula; B, detail of first valvula apex; C, second valvula; D, third valvula. E – I, abdominal sternite VII: E, C. minuta; F, C. catanachae; G, C. silvai; H, C. otamendiensis; I, C. concordica.