Oecleopsis Emeljanov, 1971

Guo, Hong-Wei, Wang, Ying-Lun & Feng, Ji-Nian, 2009, Taxonomic study of the genus Oecleopsis Emeljanov, 1971 (Hemiptera: Fulgoromorpha: Cixiidae: Pentastirini), with descriptions of three new species from China, Zootaxa 2172, pp. 45-58 : 46-47

Genus Oecleopsis Emeljanov, 1971

Oecleopsis Emeljanov, 1971: 621 . Type species: Oliarus artemisiae Matsumura , original designation.

Description. Length 5–8 mm. Head small, distinctly narrower than thorax, moderately elongate. Vertex narrow ( Figs 16 , 34, 35 ) with highly elevated lateral carinae, crown-like in lateral view ( Fig. 36 ); subapical carina converging forward into a distinct acute angle, fused with apical border and thereby divided into two lateral parts ( Fig. 35 ), or uniting just before the apex but then fused with the apical border by two small longitudinal carinae; basal longitudinal carina rudimentary ( Figs 16 , 34 ). Frons and postclypeus flat, combined forming elongate rhomboid figure; without maculae or fenestrae; median carina forked at apex ( Fig. 35 ); median ocellus present but small. Pronotum black with yellow borders and carinae. Mesonotum usually shiny black with five concolorous carinae, or carinae tinged with yellow. Tegmina usually 3–3.6 times as long as broad, costal margin and claval suture (CuP) without granules; stigma well developed, triangular; Sc+R forked distad of fork CuA1+CuA2 or at same level as fork CuA1+CuA2, r-m crossvein situated basad of fork MA+MP; apex with ten or eleven cells ( Figs 1 , 7 , 17 , 27 ). Hind tibia with six apical teeth, lateral spines varied from three to eight in number within each species and even within same specimen. Chaetotaxy of hind tarsomere 6–7/4–5; first and second segment of hind tarsus without platellae.

Male genitalia. Very characteristic and uniform throughout the genus. Anal segment asymmetrical, with rounded posterior margin slanting downwards, left lateral margin straight or slightly convex, right lateral margin usually excavated near apex ( Figs 9 , 19 , 29 ). Pygofer with triangular lateral margins, symmetrical or almost symmetrical ( Figs 2, 3 , 8 , 18 , 28, 29 ). Genital styles very characteristic in shape, elongate, with complex, transverse, denticulate apices, situated in narrow lower excision of pygofer ( Figs 13 , 23, 24 , 28, 30 ). Aedeagus with flagellum terminating into one or several spinose processes, usually one or two subapical processes; apex of aedeagus with one spine on right side ( Figs 4 , 11 , 20 , 31 ); flagellum curved along dorsal margin ( Fig. 29 ) and not along the left margin as in many Oliarus species.

Female genitalia ( Figs 14 , 25 ). Caudal border of pregenital sternite usually shallowly excavated in middle. Anal segment small, rectangular or elliptic, distinctly narrower than half the width of pygofer. Ovipositor with first pair of valvulae very short, broad and tapering at apex, second pair rudimentary, third pair fused together at base. Pygofer with a large elliptic wax field between anal tube and ovipositor.

Distribution. Oecleopsis is a tropical and subtropical genus with 12 species recorded from China, Japan, Thailand, Cambodia, Russia and Borneo.

Remarks. This genus can be recognized by the deeply excavated surface of the vertex with highly elevated lateral borders in combination with the venation of the tegmina (Sc+R forked distad of fork CuA1+CuA2 or at same level as fork CuA1+CuA2, r-m crossvein basad of fork MA+MP). The most characteristic features that distinguish Oecleopsis from related genera, however, are found in the male and female genitalia. In males the genital styles are very characteristic, as is the uniform shape of the anal segment, pygofer and aedeagus. In females the short first valvulae in combination with a fused third pair distinguish Oecleopsis from all other Pentastirini .

Figures

FIGURES 7 – 16. Oecleopsis spinosus sp. nov. 7. right tegmen; 8. male pygofer, ventral view; 9. male anal segment, right lateral view; 10. apex of flagellum, anterior view; 11. aedeagus, right lateral view; 12. apical spine of flagellum, anterior view; 13. right genital style; 14. female genitalia, ventral view; 15. female anal segment, ventral view; 16. head, dorsal view.

FIGURES 27 – 36. Oecleopsis wuyiensis sp. nov. 27. right tegmen; 28. male pygofer, ventral view; 29. male genitalia, right lateral view; 30. left genital style; 31. aedeagus, right lateral view; 32. apex of flagellum, anterior view; 33. apical spine of flagellum, anterior view; 34. head, dorsal view; 35. upper part of head, anterodorsal view; 36. head, right lateral view.

FIGURES 1 – 6. Oecleopsis sinicus (Jacobi, 1944). 1. left tegmen; 2. male pygofer, ventral view; 3. male pygofer, left lateral view; 4. aedeagus, right lateral view; 5. apex of flagellum, anterior view; 6. apical spine of flagellum, anterior view.

FIGURES 17 – 26. Oecleopsis tiantaiensis sp. nov. 17. right tegmen; 18. male pygofer, ventral view; 19. male anal segment, right lateral view; 20. aedeagus, right lateral view; 21. apex of flagellum, anterior view; 22. apical spine of flagellum, anterior view; 23. right genital style; 24. apex of genital style, caudal view; 25. female genitalia, ventral view; 26. female anal segment, ventral view.