Plateros mamasensis, Tvardik & Bocak, 2001

Tvardik, David & Bocak, Ladislav, 2001, Review of the genus Plateros Bourgeois (Coleoptera; Lycidae) from Sulawesi, Zootaxa 16, pp. 1-12 : 7-8

Plateros mamasensis sp. n.

Type material. Holotype: male, S Sulawesi, 25 km E Mamasa , 1100 m, 119.28.39E, 3.02.10S, 22­24 July 1999, Bolm lgt. ( LMBC).

Differential diagnosis. Plateros mamasensis sp. n. posses characteristically curved apical part of phallus with dorsoapical groove ( Figs 3, 4 ) similar to those of P. rubromamasensis sp. n. ( Fig. 11 ). These species differ externally in colouration and shape of antennae ( Figs 23, 26 ). Serrate antennae of P. mamasensis sp. n. remind P. tanatorajensis sp. n. although antennomeral processes are apparently shorter in the former ( Figs 23, 27 ).

Description. Body small, slender, parallel­sided, black, only pronotal margins light brown, legs brown, with dense light pubescence. Head small, eyes hemispherically prominent, interocular distance 1.13 times eye diameter. Antennae sharply serrate ( Fig. 23 ), reaching two thirds of elytral length, apical antennomeres gradually narrower, antennomeres 10­11 parallel­sided. Antennae covered with long erected pubescence. Pronotum width at base 1.4 times length at midline. Pronotum slightly projected and widely rounded anteriorly, lateral margins straight, anterior angles distinct, posterior angles weakly projected ( Fig. 15 ). Disc with two shallow but apparent rounded depressions, laterally to basal part of longitudinal midline. Disc shining, with long light pubescence. Elytra parallelsided, 3.6 times longer than width at humeri. Costae fine, covered with dense pubescence. Phallus curved in apical third, internal sac partly sclerotized ( Figs 3, 4 ).

Measurements. BL 6.65 mm, WH 1.53 mm PL 0.98 mm, PW 1.38 mm, Ediam 0.43 mm, Edist 0.49 mm.

Distribution. Central Sulawesi Province, Mamasa valley.

Etymology: The specific name is derived from the local name Mamasa, the centre of the West Toraja region.

Figures

FIGURES 1 ­ 10: Male genitalia. 1 ­ 2: Plateros kalamensis sp. n.; 3 ­ 4: P. m a m a s e n s i s sp. n.; 5 ­ 6: P. milenae sp. n.; 7 ­ 8: P. orobuensis sp. n.; 9 ­ 10: P. tanatorajensis sp. n. Scale 0.5 mm.

FIGURES 11 ­ 27. 11 ­ 13: Male genitalia. 11: Plateros rubromamasensis sp. n.; 12 ­ 13: P. lalui sp. n.; 14 ­ 19: Male pronota. 14: P. kalamensis sp. n.; 15: P. mamasensis sp. n.; 16: P. milenae sp. n.; 17: P. orobuensis sp. n.; 18: P. rubromamasensis sp. n.; 19: P. tanatorajensis sp. n.; 20: Female antenna. 20: P. flavidus Kleine, 1933; 21 ­ 27: Male antennae. 21: P. kalamensis sp. n.; 22: P. lalui sp. n.; 23: P. mamasensis sp. n.; 24: P. milenae sp. n.; 25: P. orobuensis sp. n.; 26: P. rubromamasensis sp. n.; 27: P. tanatorajensis sp. n. Scale 0.5 mm.