Polydictya Guérin-Méneville, 1844

Constant, Jérôme, 2015, The Lanternfly genus Polydictya (Hemiptera: Fulgoromorpha: Fulgoridae) from Sulawesi and neighbouring islands, with the description of three new species, European Journal of Taxonomy 110, pp. 1-19 : 3

Genus Polydictya Guérin-Méneville, 1844

Polydictya Guérin-Méneville, 1844: 358 . Type species: Polydictya basalis (Hope, 1843) by monotypy. Thaumastodictya Kirkaldy, 1902: 307 . Type species: Polydictya krisna Kirkaldy, 1902 by original designation (junior synonym of Polydictya pantherina Gerstaecker, 1895 , see Nagai & Porion 1996).

Polydictya – Walker 1851: 289 (list of species). — Stål 1866: 135 (key). — Atkinson 1885: 155 (described). — Distant 1888: 487 (compared to Myrilla Distant, 1888 ). — Karsch 1890: 63 (compared to Anecphora Karsch, 1890 ). — Gerstaecker 1895: 10 (compared to Holodictya Gerstaecker, 1895 ). — Kirkaldy 1902: 307 (compared to Thaumastodictya Kirkaldy, 1902 ). — Melichar 1903: 71 (erroneous synonymy with Chalia Walker, 1858 ). — Distant 1906a: 199 (key to Oriental genera), 215 (described, senior synonym of Thaumastodictya ). — Kirkaldy 1907: 59 (note on publication date). — Schmidt 1907: 113 (compared to Myrilla , copied from Distant 1888). — Jacobi 1910: 101 (compared to Coelodictya Jacobi, 1910 ). — Schmidt 1912: 71 (compared to Coelodictya and Holodictya , comments on species). — Lallemand 1963: 7 (key to genera), 14 (key to species). — Nagai & Porion 1996: 13 (list of species, synonymies). — Constant & Pham 2008 (notes). — Constant 2009 (notes, key to species with hind wings red basally). — Constant 2010 (notes).

Thaumastodictya – Melichar 1903: 71 (description). — Distant 1906a: 215 (junior synonym of Polydictya ).

The characters defining the genus were given by Lallemand (1963), i.e., head broad, slightly narrower than the pronotum; frons as long as broad, not carinate, largely rounded dorsally, broadened above clypeus and strongly broader than the latter; vertex at least 4 times broader than long, excavate; tegmina at least 2.5 times longer than broad, densely reticulate; clavus closed with vein A1+A2 extending up to sutural margin; hind wings almost entirely reticulate; anterior tibiae as long as femora, sometimes slightly foliaceous; hind tibiae with 4–6 lateral spines.

Identification key to the species of Polydictya from Sulawesi and neighbouring islands

1. Dorsum of abdomen black ( Figs 5A, 6A ) ......................................................................................... 2

– Dorsum of abdomen red or brown ( Figs 3A, 4A ) ............................................................................. 3

2. Tegmina dark olivaceous brown with small whitish spots along costal margin, claval suture and disc ( Fig. 5A ); frons and vertex yellow brown ( Fig. 5 C–D); anterior tibiae slightly laminate ( Fig. 5 A–B).......................................................................................... Polydictya pelengana sp. nov.

– Tegmina black with irregular white tranverse bands ( Fig. 6A ); frons and vertex red brown ( Fig. 6 C– D); anterior tibiae slender, not laminate ( Fig. 6 A–B).......................................................................... .......................................................... Polydictya thanatos Chew Kea Foo, Porion & Audibert, 2010

3. Frons and vertex unicolorous ( Figs 3 C–D, 4C–D)............................................................................ 4

– Frons black-brown with baso-lateral angles yellow brown ( Fig. 1 C–D) ............................................ ........................................................................................................ Polydictya bantimurung sp. nov.

4 Hind wings basally without large bright red patch ( Figs 3A, 4A )..................................................... 5

– Hind wings with a large basal bright red patch ( Fig. 2 A ).................... Polydictya basirubra sp. nov.

5. Tegmina nearly unicolorous, brown with a small whitish spot along claval suture and 3 small spots on disc of membrane, no spot along costal margin ( Fig. 3A ) and not tinged with red ventrally ( Fig. 3B ); tegmina slightly broader: LTg/BTg = 2.72 ....................................... Polydictya crassa Distant, 1906

– Tegmina brown, tinged with reddish ventrally ( Fig. 4B ), and with whitish spots: large one at apex of clavus, 3 along claval suture, 3–4 along costal margin and 3 on disc of membrane ( Fig. 4A ); tegmina slightly narrower: LTg/BTg = 2.86............................ Polydictya katsurakoae Nagai & Porion, 1996

Figures

Figs 5–6. 5. Polydictya pelengana sp. nov. 6. Polydictya thanatos Chew Kea Foo, Porion & Audibert, 2010. A. Habitus, dorsal view. B. Habitus, ventral view. C. Vertex, pro and mesonotum, dorsal view. D. Frons, normal view. E. Habitus, lateral view. F. Head and prothorax, lateral view. Scale bars = 10 mm.

Figs 3–4. 3. Polydictya crassa Distant, 1906. 4. Polydictya katsurakoae Nagai & Porion, 1996. A. Habitus, dorsal view. B. Habitus, ventral view. C. Vertex, pro and mesonotum, dorsal view. D. Frons, normal view. E. Labels. Scale bars = 10 mm.

Figs 1–2. 1. Polydictya bantimurung sp. nov. 2. Polydictya basirubra sp. nov. A. Habitus, dorsal view. B. Habitus, ventral view. C. Vertex, pro and mesonotum, dorsal view. D. Frons, normal view. E. Habitus, lateral view. F. Head and prothorax, lateral view. Scale bars = 10 mm.