Galman G.,French Natural History Museum |
Matyot P.A.T.,Island Conservation Society ICS |
Voisin J.-F.,Seychelles Islands Foundation SIF
Annales de la Societe Entomologique de France | Year: 2011
The Seychellian species of the genus Cratopus are reviewed, and four new taxa described. The largesized (16-19 mm) C. roberti n. sp. possesses ten elytral striae, small denticules on its foretibiae, the profemoral tooth included, and a metallic squamulose green vestiture with a white stripe at the base and along the sides of the elytra as well as along each side of the prothorax. About 8-10 mm long, C. venustus n. sp. is recognizable from its black, shining integuments, its reduced metallic blue vestiture, its twelve elytral striae of strong punctures, and its careniform 8. and 9. interstriae. C. griseovestitus northislandensis n. ssp. differs from the nominative form C. griseovestitus griseovestitus Linell 1887 by its coriaceous integuments and denser vestiture with golden to green reflections. C. griseovestitus fregata n. ssp. differs from the nominative form by its more or less dark brown integuments, with scattered, very small hairs and squamules. The synonymy of C. parcesquamosus Fairmaire 1893 and C. abbotti Linell 1907 with C. aurostriatus Fairmaire 1892 is confirmed, and an identification key to the Seychellian species of the genus is given. These species can be divided into two sets according to their distribution. One of these sets comprises three species of the griseovestitus group, which have a broad distribution and inhabit coastal areas and low coral islands, and probably arrived fairly recently. The second set comprises six species living in the granitic islands, five of them having their habitat restricted to the interior of one or two islands. They are certainly of much older stock. The Cratopus are folivores at the adult stage, and often polyphagous, and a list of their known host-plants is provided.
PubMed | 193 bis CD41, Russian Academy of Sciences and Island Conservation Society ICS
Type: Journal Article | Journal: Zootaxa | Year: 2016
The Seychelles archipelago is characterized by an exceptionally high level of endemism in certain taxa, including at least 275 endemic species of Lepidoptera (Legrand 1966; Gerlach & Matyot 2006; De Prins & De Prins 2015). Despite the fact that endemics are the main objects of conservation efforts, information regarding endemic Seychelles Lepidoptera is very poor, because the majority of them are known from a single or a few specimens (Legrand 1966; Gerlach and Matyot 2006; Bolotov et al. 2014, 2015). The emerald moth specimens are lacking in extensive samples obtained by earlier collectors (Fletcher 1910; Scott 1910; Fryer 1912). Further, two emerald moth species in the genus Thalassodes Guene, 1858 have been reported from Seychelles, i.e., the widespread T. quadraria Guene, 1858 (Legrand 1966; Gerlach & Matyot 2006; De Prins & De Prins 2015) and the endemic T. antithetica Herbulot, 1962. The latter species is known from eight specimens, collected between 1959 and 1963 (Legrand 1966; Gerlach & Matyot 2006). Herbulot (1962) provided a very short description of this species without any illustration. The protologue consists of a description of some external characters, i.e., antennae, palpi and legs, as well as the pattern of markings, but the male and female genitalia are not described. As the main diagnostic features, Herbulot (1962) noted two specific characters in the male morphology, namely the hind tibia with a single pair of spurs and an exceptional development of the lateral processes (octavals) on the posterior margin of the eighth sternite.