Eumecurus skofitschii Huang & Holzinger

Huang, Min & Holzinger, Werner E., 2010, Cixiidae (Hemiptera: Fulgoromorpha) from Namibia, with records from neighbouring countries, Zootaxa 2717, pp. 34-52 : 44-45

Eumecurus skofitschii Huang & Holzinger , sp. nov.

Figs 28 , 59–68

Material. Holotype male, Angola, 5km E Capangombe (15°05’S, 13°10’E), 17–20.xi.1974 ( NMNW No. H22570).

Etymology. The species is dedicated to our friend and colleague Prof. Dr. Gerhard Skofitsch.

Description. Length of male 6.0 mm. Body brownish. Vertex distinctly longer than broad, lateral keels strongly elevated, median keel present only at caudal fifth of the vertex. Face brownish, with a pair of large maculae at lateral margins of frontoclypeal suture. Median carina prominent, yellowish brown; frons broader than long.

Mesonotum with five carinae. Fore wings hyaline, with pale yellow veins covered by well developed brown granules. Pterostigma brownish. Legs with femora brown, tibiae brownish yellow and tarsi pale yellow. Chaetotaxy of hind tarsi 7/5.

Aedeagal complex in male genitalia as in figs 59–62: Periandrium with two long, curved spines emerging basally – one pointing craniad, the other caudad ( Figs 61, 62 ). A slender, straight, spine emerging ventrolaterad in middle of periandrium, two shorter, slightly curved spines at caudal end of periandrium, one on left, the other on right lateral side. Three spines emerging at base of flagellum: the longest one as long as the flagellum, slender and curved, the second one half as long as the first, semicircular, and the third one, the shortest, slightly curving leftcephalad.

Flagellum initially curving cephalad, then strongly bent to the right, enlarged apically. Flagellum subapically with two spines of equal length, one directed caudad, the other beginning cephalad and then slightly curving right.

Genital styles slightly asymmetrical; with shafts narrowed at midlength, expanded apically; left shaft narrower than right. Pygofer ( Figs 63, 64 ) with medioventral process unusually small; with two well produced lobes, conspicuously asymmetrical: right lobe rounded at apex, bearing a thin spine, left lobe broader, with the central area of its lateral margin swollen. Anal segment ( Figs 65–68 ) symmetrical in lateral view, medioventral margin asymmetrical, right protrusion further ventrad than left one.

Differential diagnosis: The new species is well distinguishable from other species of the genus by the unique shape of the aedeagus ( Figs 59–62 ); no other species has this combination of spines. The two long, curved, basoventral spines of the periandrium enable easy identification of the species by checking the aedeagus in lateral view.

Figures

FIGURES 22 – 28. Head in dorsal view. 22. Eumecurus zairensis [specimen from Malawi]; 23. Pentastiridius sudanicus [specimen from Uniab Delta Area, Skeleton Coast Park]; 24. Eumecurus hottentottus [specimen from Starkberg, Etosha Nat. Park]; 25. Pentastiridius moestus [specimen from Popa Falls, Kavango]; 26. P. limbifer [specimen from 80 km W Rundu, Okavango]; 27. Eumecurus incompletus [specimen from 80 km W Rundu, Okavango]; 28. Eumecurus skofitschii [holotype]; Scale bar = 1 mm.

FIGURES 59 – 68. Eumecurus skofitschii, male genitalia. 59. aedeagus, ventral view; 60. same, dorsal view; 61. same, right lateral view; 62. male genital segment from the right; 63. ventrobasal spines of the aedeagus, left lateral view; 64. male genital segment from the left; 65. male anal tube from ventral; 66. same, from dorsal; 67. same, from the left; 68. same, from the right [drawn after the holotype].