Polydictya chantrainei Nagai & Porion, 2004

Constant, Jérôme & Pham, Hong Thai, 1843, Polydictya lanternflies of the Indochinese region: Six new species and identification key (Hemiptera: Fulgoromorpha: Fulgoridae), Belgian Journal of Entomology 86, pp. 1-42 : 1-42

Polydictya chantrainei Nagai & Porion, 2004

Figs 1–4

Polydictya chantrainei NAGAI & PORION, 2004: 5 [described], pl. 2 fig. 9 [habitus in dorsal view].

Polydictya chantrainei – CONSTANT, 2009: 294 [key], 296 [distribution, compared with P. duffelsi Constant, 2009 , intraspecific variation], figs 1 [distribution map], 9 [habitus, from Myanmar]. — CONSTANT & PHAM, 2017: 279 [listed], 280 [compared with P. drumonti Constant & Pham, 2017 ], 285 [compared with P. grootaerti Constant & Pham, 2017 ], 289 [keyed].

DIAGNOSIS. The species can be separated from all other Polydictya species by the following combination of characters: (1) tegmina with paler and darker areas forming cloudy effect ( Fig. 1 A ); (2) posterior wings with bright orange basal area extending to half-length and remaining part translucent brown with very narrow opaque band along sutural margin ( Fig. 1 A ); (3) frons with dorsal margin slightly projecting anterodorsally ( Fig. 1 B, D ), yellow-brown ( Fig. 1 D ); (4) protibiae slightly laminate, brown basally and black distally with pale yellowish ring in middle ( Fig. 1 A, C ); (5) abdomen red dorsally ( Fig. 1 A ); (6) genital segments orange.

The closest species are P. grootaerti Constant & Pham, 2017 from Vietnam ( CONSTANT & PHAM, 2017: fig. 3), P. khmera sp. nov. from Cambodia ( Fig. 6 ) and P. kuntzi Nagai & Porion, 2004 from Borneo ( Fig. 18 ), from which P. chantrainei can be separated by character (2): the three other species show the brown coloured part of the posterior wings entirely opaque.

TYPE MATERIAL EXAMINED. THAILAND: Holotype ♂: [Chiang Mai, Thailand , VI.2002] ( MHNL).

MALAYSIA: Paratype ♂: [Coll. P. Bleuzen, Cameroon Highlands, Malaisie, XI 1993] ( MHNL) .

NOTES.

On the label of the paratype, “ Cameroon Highlands ” is a misspelling of “ Cameron Highlands ” .

From the type series, only the paratype from Malaysia was examined in CONSTANT (2009). The present study allowed the examination of the male genitalia of a specimen from the type locality, Chiang Mai and revealed that the specimen from Laos attributed to P. chantrainei by CONSTANT (2009) actually belongs to a separate species, P. laotiana sp. nov. For this reason, the distribution map only shows the type location and the identity of the specimens from Malaysia and Myanmar as listed in CONSTANT (2009) require verification based on male genitalia.

ADDITIONAL MATERIAL. THAILAND: 1 ♂ ( Fig. 1 – dissected): Thailand , Chiang Mai, Sept. 2000 ( MNHN) .

SUPPLEMENTARY DESCRIPTION.

Measurements and ratios: LT: ♂ (n = 1): 21.6 mm; LTg/BTg = 3.0; BV/LV = 4.1; LF/BF = 0.87.

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9 Male genitalia: ( Figs 2–3 ) pygofer, anal tube and gonostyli orange; pygofer higher than long, with posterior margin slightly curved in lateral view and with blunt dorsolateral process directed posterodorsally and laterally. Anal tube elongate, 1.42 times longer than broad in dorsal view, broader near apex; dorsal margin nearly straight in lateral view and abruptly curved ventrally near apex; apicoventral angle rounded in lateral view; lateral margins strongly sinuate in dorsal view, subparallel on distal half; apical margin excavate in dorsal view, apicolateral angles blunt in dorsal view; in posterior view, dorsal and lateral margins strongly rounded, ventral margin bisinuate and lateral lamina visible on a distance. Gonostyli elongate, subrectangular with posterior half wider and dorsal margin excavate on basal half in lateral view; strong lateral bifid tooth directed antero-ventrally at about half length; apical margin nearly straight medially. Aedeagus with endosomal process rather straight in dorsal view, curved ventrally on distal portion in lateral view; in dorsal view, widening from base towards apex and abruptly narrowing after mediodorsal small hook, laterodorsal margin

10 laminate on distal portion and with 5–6 irregular teeth directed laterally; in lateral view, laterodorsal lamina incurved and apex rounded; inflated phallus rather complex, symmetrical, with 3 pairs of membranous processes; dorsal pair projecting dorsally, large, broad and furcate on distal portion; median pair projecting posteriorly, with weakly sclerotized shaft more or less following endosomal process, hemi crescent-shaped and basally inflated ventrally; ventral pair with spiralate external structure and with internal weakly sclerotized shaft, inflated in median portion in lateral view.

DISTRIBUTION. Thailand (Chiang Mai Province) ( Fig. 4 ).

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Figures

Fig. 1. Polydictya chantrainei Nagai & Porion, 2004, ♂ from Chiang Mai, Thailand (MNHN). A, habitus, dorsal view; B, head, pro- and mesonotum, dorsal view. C, habitus, ventral view. D, frons, normal view. E, habitus, lateral view. F, head and prothorax, lateral view.

Fig. 2. Polydictya chantrainei Nagai & Porion, 2004, ♂ from Chiang Mai, Thailand (MNHN), genitalia. A, pygofer, anal tube and gonostylus, left lateral view. B, apex of anal tube, postero-dorsal view. C, anal tube and pygofer, dorsal view. D, endosomal process of aedeagus, lateral view. E, endosomal process of aedeagus, dorsal view. An, anal tube – EP, endosomal process of aedeagus – G, gonostylus – Py, pygofer.

Fig. 3. Polydictya chantrainei Nagai & Porion, 2004, ♂ from Chiang Mai, Thailand (MNHN), aedeagus. A, dorsal view. B, lateral view. C, ventral view. D, posterior view. E, laterodorsal view.

Fig. 4. Polydictya spp. nov. and P. chantrainei Nagai & Porion, 2004, distribution map.

Fig. 6. Polydictya khmera sp. nov., holotype ♂ (RBINS). A, habitus, dorsal view; B, head, pro- and mesonotum, dorsal view. C, habitus, ventral view. D, frons, normal view. E, habitus, lateral view. F, head and prothorax, lateral view.

Fig. 18. Polydictya kuntzi Nagai & Porion, 2004, ♀ (MHNL). A, habitus, dorsal view; B, habitus, ventral view. C, head, pro- and mesonotum, dorsal view. D, frons, normal view. E, habitus, lateral view. F, label. G, head and thorax, lateral view.