Audibert , 2011 , with a new species from Sumatra ( Hemiptera : Fulgoromorpha : Fulgoridae )

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.


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.

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 CS3.The inflation of the phallus was not done due to the difficulty in obtaining good results.
The measurements were taken as in Constant (2004)

Note
Lallemand erroneously wrote brevicornuta instead of brevirostris on the identification label attached to the specimen.

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 dorsoposteriorly (Fig. 15).Phallic complex with latero-ventral curved sclerotized process on each side (Fig. 17), processes with ante-apical expansion directed anteriorly (Fig. 18).

Distribution
Borneo.The species seems widespread on the island (see map Fig. 7).

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.
Head 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).Antennae with scape cylindrical and pedicel reniform.tHorax .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 .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 .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 .Rosy orange with tarsi I and II yellow-brown.All tibiae slender.Tibiae III with 5 lateral and 7 apical spines.

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.

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.
Dr. Thierry Bourgoin (MNHN) for reminding me of a specimen I had identified as a new genus and species nearly ten years ago.