Losbanosia taivaniae, Szwedo, Jacek & Adamczewska, Malgorzata, 2004

Szwedo, Jacek & Adamczewska, Malgorzata, 2004, Notes on some Oriental Derbidae (Hemiptera: Fulgoroidea) with description of new species, Zootaxa 597, pp. 1-11 : 2-4

Losbanosia taivaniae sp. nov.

( Figs. 1–12 )

Losbanosia hiberensis [sic!] ( Matsumura, 1935): Yang & Wu 1993: 37, Fig.14 A–J.

Losbanosia hiberensis [sic!] (Muir) [sic!]: Yang & Chang 2000: 545, 546, Fig. 444A–F.

DIAGNOSIS: It differs from Losbanosia hibarensis (Mats.) by the almost subtriangular, only slightly diamond­like shape of the ventral median process of the pygofer (distinctly diamond­shaped in L. hibarensis ); the posterolateral margin of pygofer lacking a process, angulately rounded (angulate process in L. hibarensis ); the anal tube about three times as long as wide at the base, and not widened at the base (shorter and widened at base in L. hibarensis ); the apical portion of the anal tube with two short teeth (lack of such teeth in L. hibarensis , apical portion rounded); curved ventrad (straight in L. hibarensis ); the aedeagus with the endosomal process blunt at apex (acute in L. hibarensis ); VIIIth abdominal segment a without distinct dorsal crest (small crest in L. hibarensis ).

DESCRIPTION (Based also on data provided by Yang & Wu 1993): Length of body (including tegmina) 12.8 mm. General colour brown; rostrum and legs pale yellowish; tegmina white with brown to black markings as in Fig. 4 , veins on markings red.

Vertex ( Fig. 1 ) triangular with bifurcate apex, disc shallowly excavate; lateral carinae of frons distinctly separated throughout; compound eyes deeply incised ventrally; ocelli absent ( Figs. 2 & 3 ).

Tegmina ( Fig. 4 ) longer than widest part about 3.5:1, longer than wings about 1:0.35, with anterior and posterior margins nearly parallel; vein RA with two terminals, RP with three terminals, M with 5 terminals, CuA + CuP with 4 terminals; second transverse veinlet m­cu short.

Wings ( Fig. 5 ) with anterior margin arched anteriad in median portion, ScRA reaching margin in about half of wing length, M simple, CuA with three terminals, CuP distinctly curved and deflected basad in terminal portion, at the level of oblique veinlet uniting CuA2 with CuP, PCu distinctly curved, stridulatory area on anal field distinct.

Tibio­metatarsal formula 5:(5–6):(5–6).

Abdominal tergite VII ( Fig. 6 ) in profile distinctly longer than ventrally, dorsal margin with basal half produced dorsad, in form of rounded crest.

Anal segment ( Fig. 7 ) slender, apical third slightly curved, in dorsal view evenly widened at apical third, then narrowed, apical margin distinctly incised medially, each side with a small process; pygofer ( Figs. 8 & 9 ) with ventral margin sharply oblique, dorsal margin rounded, in ventral view medioventral process subtriangular (diamond­shaped), lateral incisions very small; aedeagus ( Figs. 11 & 12 ) in left lateral view with membranous flagellar lobe, in right lateral view small process arising from phallotheca and directed dorsomediad, endosomal process rod­like, blunt at apex; genital styles with basal portion rather narrow, apical portion quadrate, with dorsobasal angle produced dorsad roundly, dorsal margin at middle with lower portion hooked at apex, same position at ventral margin produced ventrad roundly.

ETYMOLOGY: Species named after Latin form of the name of Taiwan—Taivania.

REMARKS: The description and figures in Yang & Wu (1993) are based on a single male, collected in Chihsingshan, Taipei Hsien, 7I­X­1985, by S.C. Tsaur. Yang & Yeh (1994) described a nymph identified as Losbanosia hiberensis [sic!] ( Matsumura, 1935), collected in Hualien Hsien, Tailuko, 14­II­1990, by W.­B. Yeh, under rotten wood, and identified by Yeh on the basis of two males. These data should probably also be referred to the species described above.

MATERIAL EXAMINED: Holotype, male, dissected specimen. Labelled: [ Losbanosia taivaniae Szw. et Ada. ɗ]; red label [HOLOTYPE]; [ TAIWAN: Taipei / Chihsingshan / 7I­X­1985 / col. S.C. Tsaur]; [ Losbanosia hiber­ / ensis (Mats.)]; [1]; tegmina and wings on separate microscopic slides with the same labels and annotations: [2]–tegmina and [3]– wings.

Figures

FIGURES 1 – 12. Losbanosia taivaniae sp. nov. Fig. 1. Head in dorsal view; (After Yang & Wu 1993); Fig. 2. Head in right lateral view; (After Yang & Wu 1993); Fig. 3. Head in frontal view; (After Yang & Wu 1993); Fig. 4. Tegmen; Fig. 5. Wing; Fig. 6. Abdomen segments VI – VIII in lateral view; (After Yang & Wu 1993); Fig. 7. Anal tube in dorsal view; (After Yang & Wu 1993); Fig. 8. Pygofer, anal tube, and style in right lateral view; Fig. 9. Pygofer in ventral view; Fig. 10. Styles in ventral view; Fig. 11. Aedeagus in right lateral view; Fig. 12. Aedeagus in left lateral view.

FIGURES 13 – 30. Losbanosia tamdaoensis sp. nov. Fig. 13. Anterior part in dorsal view; Fig. 14. Head in frontal view; Fig. 15. Anterior part in left lateral view; Fig. 16. Antenna; Fig. 17. Hind tibia and tarsus; Fig. 18. Tegmen; Fig. 19. Wing; Fig. 20. Abdomen in left lateral view; Fig. 21. Abdomen in dorsal view; Fig. 22. Abdomen in ventral view; Fig. 23. Pygofer in ventral view; Fig. 24. Anal tube in dorsal view; Fig. 25. Left style in lateral view; Fig. 26. Styles in dorsal view; Fig. 27. Styles in ventral view; Fig. 28. Aedeagus in right lateral view; Fig. 29. Aedeagus in left lateral view; Fig. 30. Aedeagus in dorsal view.