http://dx.doi.org/10.5852/eit.2014.92
www. europeani ournaloftaxonomv. eu
2014 • Constant J.
This work is licensed under a Creative Commons Attribution 3.0 License.
Research article
urn:lsid:zoobank.org:pub:9AD31876-2799-46Cl-AEF7-C624FA7C96B7
Review of the Oriental lantern-fly genus Egregia Chew Kea
Foo, Porion & Audibert, 2011, with a new species from Sumatra
(Hemiptera: Fulgoromorpha: Fulgoridae)
Jerome CONSTANT
Royal Belgian Institute of Natural Sciences, D.O. Phylogeny and Taxonomy, Entomology,
Vautier Street 29, B-1000 Brussels, Belgium. E-mail: [email protected]
urn:lsid:zoobank.org:author:6E6072Al-9415-4C8D-8E60-2504444DB290
Abstract. Datua brevirostris Lallemand, 1959 is transferred to the genus Egregia Chew Kea Foo, Porion
& Audibert, 2011 in the Aphaeninae and the new combination Egregia brevirostris (Lallemand, 1959)
comb. nov. is proposed. Egregia marpessa Chew Kea Foo, Porion & Audibert, 2011, the type-species
of the genus Egregia , is synonymized with Egregia brevirostris (Lallemand, 1959). A second species,
Egregia laprincesse sp. nov. is described from Sumatra, extending the distribution of the genus hitherto
recorded only from Borneo. Distribution maps and an identification key are provided. The male genitalia
of E. brevirostris are illustrated and described. The genus Datua Schmidt, 1911 now contains a single
species, D. bisinuata Schmidt, 1911.
Keywords. Lantern bug, planthopper, Malaysia, Fulgoroidea, citizen science
Constant J. 2014. Review of the Oriental lantern-fly genus Egregia Chew Kea Foo, Porion & Audibert, 2011, with
a new species from Sumatra (Hemiptera: Fulgoromorpha: Fulgoridae). European Journal of Taxonomy 92: 1-9.
http://dx.doi.org/10.5852.eit.2014.92
Introduction
In the process of revising the Old World fauna of Fulgoridae, it appeared necessary to propose some
nomenclatural changes within the recently described genus Egregia Chew Kea Foo, Porion & Audibert,
2011. The genus currently contains the unique species E. marpessa Chew Kea Foo, Porion & Audibert,
2011 from Borneo.
Lallemand (1959) described Datua brevirostris based on a single female from Borneo. However,
Lallemand (1963) did not mention D. brevirostris in his monograph on Oriental and Australian
Fulgoridae, and it is also missing in the catalogue of Nagai & Porion (1996) and its supplements (Nagai
& Porion 2002, 2004).
The study of the type specimens of both species revealed that they are conspecific. The present paper
aims to clarify that nomenclatural issue and to describe a new species, Egregia laprincesse sp. nov. from
Sumatra.
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European Journal of Taxonomy 92: 1-9 (2014)
Material and methods
The type specimens have been examined. The male genitalia were dissected as follows: the pygofer was
cut from the abdomen of the softened specimen with a needle blade, and then boiled for about one hour
in a 10% solution of potassium hydroxide (KOH) at about 100°C. The phallic complex was dissected
with a needle blade and all pieces examined in ethanol, the whole placed in glycerine for preservation.
Observations were done with a Leica MZ8 stereo microscope. Pictures were taken with a Canon EOS
300 D camera with a Sigma DG Macro lens and optimized with Photoshop CSS. The inflation of the
phallus was not done due to the difficulty in obtaining good results.
The measurements were taken as in Constant (2004) and the following abbreviations are used:
BF
= breadth of the frons
BTg
= breadth of the tegmen
BV
= breadth of the vertex
LF
= length of the frons
LTg
= length of the tegmen
LV
= length of the vertex
TL
= total length
(LV, LF and TL measured to the base of the cephalic process)
Acronyms used for the collections (names of the curators in parentheses):
MHNL = Museum d’Histoire Naturelle de Lyon, France (H. Labrique, J. Clary, C. Audibert)
MNHN = Museum national d'Histoire Naturelle, Paris, France (Thierry Bourgoin)
NHRS = Naturhistoriska riksmuseet, Stockholm, Sweden (Gunvi Lindberg)
Results
Taxonomy
Family Fulgoridae Latreille, 1807
Subfamily Aphaeninae Blanchard, 1847
Tribe Aphaenini Distant, 1906
Genus Egregia Chew Kea Foo, Porion & Audibert, 2011
Type-species: Egregia marpessa Chew Kea Foo, Porion & Audibert, 2011 by original designation.
Identification key to the species of Egregia
- In lateral view, cephalic process slightly curved postero-dorsally at apex and narrower than eye
(Fig. 14); hind wings with dark purple basal patch covering less than half of surface and prolonged
by lines of spots along costal half (Figs 9-10) . Egregia brevirostris (Lallemand, 1959)
- In lateral view, cephalic process strongly curved postero-dorsally at apex and broader than eye (Fig.
23); hind wings with red basal patch covering about half of surface and without additional spots
(Figs 19-20) . Egregia laprincesse sp. nov.
Egregia brevirostris (Lallemand, 1959) comb. nov.
Figs 1-18
Datua brevirostris Lal 1 emand, 1959: 268.
Egregia marpessa Chew Kea Foo, Porion & Audibert, 2011: 45, syn. nov.
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CONSTANT J., The genus Egregia (Hemiptera: Fulgoridae)
Material examined
Type material
Holotype $ of Datua brevirostris (Figs 1-6) labelled: [Borneo, Brunnei.] [Type] [Datua brevicornuta ,
V. Xallemand det., 1958] [NHRS-HEMI 000000183] (NHRS).
Holotype S of Egregia marpessa : Indonesia, centre of Kalimantan, Mont Payang 1200-1600 m, May
2008, Stanislav Jakl leg. (MHNL).
Figs 1-8. 1-6, Egregia brevirostris (Lallemand, 1959), holotype, $. 1. Dorsal view. 2. Ventral view. 3.
Head and pronotum: dorsal view. 4. Frons: normal view. 5. Head and thorax: left lateral view (Figs 3-5
not to scale). 6. Tabels. 7. Distribution map. 8. Specimen in nature at night, Sarawak, Mufti National
Park, 50 m asl (photograph by Ch’ien C. Lee - www.wildborneo.com.mv L
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European Journal of Taxonomy 92: 1-9 (2014)
Paratype $ of Egregia marpessa : East-Malaysia, Sabah, Sandakan, 2 Nov. 2006, Steven ChewKeaFoo
leg. (MHNL).
Additional material examined
MALAYSIA: 1 $ (Figs 9-14), East Malaysia, Sabah, Tawau, 6 Apr. 2010 (MHNL).
Material examined on photograph
MALAYSIA: 1 specimen (probably S, Fig. 8), Sarawak, Mulu National Park, 4°03.107’ N 114°81.666’
E, c. 50 m asl, 23 Nov. 2012, 19:49, Ch’ien C. Lee (Lee, 2014).
Additional data
INDONESIA: (Edy Bhaskara pers. comm. 2013): 1 specimen, E Kalimantan, Long Bagun village; 1
specimen, E Kalimantan, Malinau village (about 150 m alt).
Note
Lallemand erroneously wrote brevicornuta instead of brevirostris on the identification label attached to
the specimen.
Figs 9-14. Egregia brevirostris (Lallemand, 1959), from Tawau (TL: 30.2 mm). 9. Habitus: ventral
view. 10. Habitus, dorsal view. 11. Habitus: right lateral view. 12. Head: normal view of Irons. 13. Head
and thorax: dorsal view. 14. Head and thorax: right lateral view (Figs 12-14 not to scale).
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CONSTANT J., The genus Egregia (Hemiptera: Fulgoridae)
Measurements and ratios. LTg/BTg (n = 2) = 2.22; BV/LV (n = 1) = 3.42; LF/BF (n = 1) = 1.21.
Male genitalia
Pygofer with digitiform process dorsally on each side of anal tube, directed dorso-posteriorly (Figs
15-16); posterior margin of pygofer strongly sinuate on ventral 1/3 in lateral view (Fig. 15). Anal tube
elongate, about 1.34 times longer than broad near apex, with lateral margins diverging from base to
apex in dorsal view (Fig. 16); ventral margin sinuate and apical margin rounded in lateral view (Fig.
15). Gonostyli elongate, twice as long as broad, with apex broadly rounded and dorsal and ventral
margins subparallel in lateral view (Fig. 15); strong hook-shaped tooth under dorsal margin close to
pygofer, curved ventro-posteriorly and prolonged by a small rounded lobe on gonostylus wall dorso-
posteriorly (Fig. 15). Phallic complex with latero-ventral curved sclerotized process on each side (Fig.
17), processes with ante-apical expansion directed anteriorly (Fig. 18).
Figs 15-18. Egregia brevirostris (Lallemand, 1959), from Tawau, genitalia. 15. Pygofer, anal tube
and gonostylus: left lateral view. 16. Pygofer and anal tube: dorsal view. 17. Phallic complex: left lateral
view. 18. Tatero-ventral sclerotized process of phallic complex, left lateral view. An — anal tube, G =
gonostylus, Py = pygofer. Scale 1 mm (Fig. 17 not to scale).
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European Journal of Taxonomy 92: 1-9 (2014)
Distribution
Borneo. The species seems widespread on the island (see map Fig. 7).
Egregia laprincesse sp. nov.
Figs 19-26
um:lsid:zoobank.org:act:91745C72-BE87-4FCD-80CC-355CC07F46B9
Etymology
The species name used in apposition is the contraction of “la princesse”, the original name of “Sleeping
Beauty” in the classic 1697 fairytale by Charles Perrault. The name refers to the fact that the single
known female has been sleeping in the collections of the MNHN for more than one century.
Type material
Holotype
INDONESIA: 1 §: [Museum Paris, Sumatra, Benkollen, Marang-Liwa, Coll. Noualhier 1898] [Museum
Paris, MNHN (EH), 22030] (Fig. 24). Coordinates of Marang-Liwa: 5°04’S 104°06’E (Medler 1999).
Museum Paris
MNKtffeH)
22030
10 mm
MUSEUM PARIS
SUMATRA
BEHtCC^-EN ♦
MABAKGH.1WA
Figs 19-25. Egregia laprincesse sp. nov., holotype, $ (TL: 31.6 mm). 19. Habitus: dorsal view. 20.
Habitus, ventral view. 21. Habitus: left lateral view. 22. Head and thorax: dorsal view. 23. Head and
thorax: left lateral view. 24. Labels. 25. Head: normal view of frons (Figs 22-25 not to scale).
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CONSTANT J., The genus Egregia (Hemiptera: Fulgoridae)
Description
Measurements and ratios. TL: 31.6 mm ; LTg/BTg = 2.08; BV/LV = 3.12; LF/BF = 1.11.
Head (Figs 22-23,25). Entirely orange. Elongate with scimitar-shaped process projecting antero-dorsally
and curved backwards apically; apex pointed; process broader than eye in lateral view and about as long
as pro- and mesonotum together. Vertex before process broader than long and irregularly wrinkled;
posterior and lateral margins carinate; lateral carinae extending to apex of process. Frons elongate with 2
smooth discal carinae extending to apex of process and getting more strongly marked from base to apex.
Lateral margins of frons carinate, extending along sides of process and sub-parallel to anterior margin.
Clypeus slightly narrower than frons and with sides sub-parallel on basal half. Postclypeus pointed.
Labium reaching hind coxae (Fig. 20). Ante nn ae with scape cylindrical and pedicel reniform.
96°E 99°E 102°E 105°E 108°E
Fig. 26. Egregia laprincesse sp. nov., distribution map.
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European Journal of Taxonomy 92: 1-9 (2014)
Thorax (Figs 22-23). Orange. Pronotum nearly smooth, with obsolete longitudinal carina and transverse
wrinkles; dorso-lateral carinae with edge black-brown. Mesonotum with smooth peridiscal carinae.
Longitudinal carina of metathoracic pleura black-brown. Tegulae orange.
Tegmina (Figs 19- 21). Orange with irregular reddish spots, some of them with orange center. Sutural
margin with 7 very small black-brown spots on edge. Costal and apical margins broadly rounded. Ventral
surface slightly covered with white wax.
Hind wings (Figs 19-20). Broad, orange with rosy-red large basal patch covering about half of total
surface. Numerous cross-veinlets marked with milky white and forming dense net on entire wing. Anal
area well developed.
Legs (Figs 19-20). Rosy orange with tarsi I and II yellow-brown. All tibiae slender. Tibiae III with 5
lateral and 7 apical spines.
Abdomen (Figs 19-20). Rosy red dorsally, yellow-brown ventrally.
Note
It is possible that the colour of living specimens is more or less olivaceous or green and that it faded to
orange after death, as has also been observed in E. brevirostris.
Distribution
Sumatra (see map Fig. 26).
Discussion
The reason for the placement of brevirostris within Datua Schmidt, 1911 by Lallemand (1959) remains
obscure, as brevirostris is very different from the single species contained in Datua , D. bisinuata
Schmidt, 1911 (see also Nagai & Porion 1996 for illustrations).
Although the collecting date of the holotype described by Lallemand (1959) is unknown, at least 50
years passed until another specimen of E. brevirostris was collected. However, since the paper by Chew
Kea Foo et al. (2011), it has been possible to gather a number of data showing that the species is
actually widespread in Borneo, and proving once more that more collecting is necessary to improve our
knowledge even of big and spectacular insects.
Collaboration with local naturalists and nature photographers via the internet is also an efficient way to
collect information on species which can be identified from photographs: 3 of the 7 distribution data in
the present work come from such “citizen science” sources.
Acknowledgements
I thank all the curators listed above for their help to study the material under their responsibility, Mr.
Thierry Porion for interesting discussions, Mr. Ch’ien C. Lee ( www.wildborneo.com.mv ) for the kind
permission to use his photograph and data, Mr. Joachim Bresseel for informing the author about the
picture on the internet, Mr. Edy Bhaskara for transmitting his data, and Dr. Patrick Grootaert (Royal
Belgian Institute of Natural Sciences, RBINS) and Mr. Pol Limbourg (RBINS) for their support and
comments. This study has also benefited from funds of the European Union for a visit to the collections
of the NHRS (Synthesys project) and MNHN (Colparsyst Project), and from MHNL for a visit to its
collections so kindly arranged by Mr. Cedric Audibert, Joel Clary and Harold Labrique. I warmly thank
8
CONSTANT J., The genus Egregia (Hemiptera: Fulgoridae)
Dr. Thierry Bourgoin (MNHN) for reminding me of a specimen I had identified as a new genus and
species nearly ten years ago.
References
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espece de Fulgoridae de Borneo (Hemiptera: Fulgoromorpha). Les cahiers du Musee des Confluences
-Etudes scientifiques 1: 43-50. http://www.museedesconfluences.fr/musee/publications/publications_
scientifiques/cahiers_museedesconfluences/cmdc_esl_a2.pdf
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Lallemand V. 1963. Revision des Fulgoridae (Homoptera). Deuxieme partie. Faunes asiatique et
australienne. Memoires de l Lnstitut royal des Sciences naturelles de Belgique (2 e serie) 75: 1-99.
Lee C.C. 2014. Nature Photography of Southeast Asia [online], www.wildbomeo.com.mv [accessed
November 2013].
Medler J.T. 1999. Flatidae (Homoptera: Fulgoroidea) of Indonesia, exclusive of Irian Jaya. Zoologische
Verhandelingen (Leiden) 324: 1-88.
Nagai S. & Porion T. 1996. Fulgoridae 2: Catalogue illustre des Faunes asiatique et australienne.
Sciences Nat, Compiegne.
Nagai S. & Porion T. 2002. Fulgoridae 2. Supplement E New Fulgoridae from South-East Asia. Hillside
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Manuscript received: 1 7 December 2013
Manuscript accepted: 1 July 2014
Published on: 5 August 2014
Topic editor: Koen Martens
Desk editor: Kristiaan Hoedemakers
Printed versions of all papers are also deposited in the libraries of the institutes that are members of
the EJT consortium: Museum National d’Histoire Naturelle, Paris, France; Botanic Garden Meise,
Belgium; Royal Museum for Central Africa, Tervuren, Belgium; Natural History Museum, London,
United Kingdom; Royal Belgian Institute of Natural Sciences, Brussels, Belgium; Natural History
Museum of Denmark, Copenhagen, Denmark.
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