Sogana longiceps Fennah, 1978

Constant, Jérôme & Pham, Hong Thai, 2019, The planthopper genus Sogana Matsumura, 1914 in Vietnam: Two new species, new records and identification key (Hemiptera: Fulgoromorpha: Tropiduchidae), Belgian Journal of Entomology 85, pp. 1-19 : 1-19

Sogana longiceps Fennah, 1978

Figs 3 , 7–8

Sogana longiceps FENNAH, 1978: 262 , figs 219–226 [described; habitus, details, male genitalia and distribution illustrated].

Sogana longiceps – LIANG & WANG, 2008: 33 [keyed], 37 [described based on FENNAH, 1978] (based on erroneous identification according to CONSTANT & PHAM, 2013). — CONSTANT & PHAM, 2013: 72 [keyed], 76 [notes on data from China], fig. 5 [male genitalia illustrated based on FENNAH, 1978], fig. 6 [distribution map].

15

16

17

non Sogana longiceps – CHOU et al., 1985: 40 [described, listed from China], fig. 36 [habitus and frons illustrated] (based on erroneous identification according to CONSTANT & PHAM, 2013). — LIANG & WANG, 2008: 37 [listed from China], fig. 4 [habitus illustrated] (based on erroneous identification according to CONSTANT & PHAM, 2013).

TYPE MATERIAL EXAMINED. VIETNAM: holotype ♂: [Vietnam, Chine aa Hanoi, 25.6.1959, leg. B. Pisarski & I. Proszynski (5868)], [Inst. Zool. P.A.N., Warszawa, 58/59] , [Holo- type], [ Sogana longiceps det. R. G. Fennah] ( ZMPA) .

Note

The type specimen, that was not available for our previous study ( CONSTANT & PHAM, 2013), was later located in the collections of ZMPA .

AMENDED DESCRIPTION

Measurements and ratios: LT: ♂ (extrapolated – n = 1): 11.7 mm; LTg/BTg = 3.4; LV/BV = 1.15; LF/BF = 1.7.

Terminalia ♂: ( Fig. 8 ) pygofer narrow with posterodorsal angle roundly angular in lateral view; anterior and posterior margins sinuate in lateral view ( Fig. 8 A–B ); posterior margin deeply V-shaped notched dorsally ( Fig. 8 D ). Gonostyli ( Fig. 8 A–D ) very elongate, laterally compressed, with apex roundly pointed; 3 hooked processes on dorsal margin at about 2/3 of gonostylus length. Aedeagus ( Fig. 8 E–I ) elongate and narrow, with 2 dorsal processes, with left one more posterior and longer than right one, and one lateral process on right side; right dorsal process long, directed anteriorly, more or less rounded in cross section, slightly dilated before apex and pointed apically; left dorsal process very long, projecting anterodorsally, more or less rounded in cross section, slightly dilated before apex and pointed apically ( Fig. 8 E–G ); right lateral process more or less round in cross section gently curved posterodorsally, slightly inflated anteapically, apex pointed ( Fig. 8 E, G ); apex of aedeagus with small ear-shaped process ( Fig. 8 E–I ). Periandrium with flat laminate process on left side ( Fig. 8 G ) and short strongly hooked lateral process on left side ( Fig. 8 I ); elongate, dorsoventrally flattened process ventrally not reaching apex of aedeagus with laterobasal hooked process, curved to the right and rounded apically ( Fig. 8 E–H ). Anal tube ( Fig. 8 A–B, D ) very elongate and narrow, slightly more developed to the right side in dorsal view, with sides subparallel, slightly constricted before apex and with apical angles rounded; sinuate in lateral view; anal column situated slightly beyond half length.

Figures

Fig. 3. Sogana spp. of Vietnam, distribution map.

Fig. 7. Sogana longiceps Fennah, 1978, holotype ♂. A, habitus dorsal view. B, habitus, ventral view. C, right tegmen. D, habitus, lateral view. E, head and thorax, dorsal view. F, head and thorax, laterodorsal view. G, frons, perpendicular view. H, head and thorax, lateral view.

Fig. 8. Sogana longiceps Fennah, 1978, holotype ♂. A, pygofer, anal tube and gonostyli, left lateral view. B, pygofer, anal tube and gonostyli, right lateral view. C, left gonostylus, dorsal view. D, pygofer, anal tube and gonostyli, dorsal view. E, aedeagus, right lateral view. F, aedeagus, left lateral view. G, aedeagus, dorsal view. H, aedeagus, left posterolateral view. I, aedeagus, ventral view. An: anal tube – cn: connective – esp: ear-shaped process of aedeagus – G: gonostylus – ldp: left dorsal process of aedeagus – pe: periandrium – Py: pygofer – rdp: right dorsal process of aedeagus – rlp: right lateral process of aedeagus – vpp: ventral process of periandrium.