Olenecamptus bilobus (Fabricius, 1801)

Majumder, Amitava, Mitra, Bulganin, Ghate, H. V. & Chandra, Kailash, 2016, On Three Species of the GenusOlenecamptusChevrolat, 1835 (Coleoptera: Cerambycidae: Lamiinae: Dorcaschematini) from Chhattisgarh, India, with a List of the Indian Species, The Coleopterists Bulletin 70 (2), pp. 321-326 : 321-326

Olenecamptus bilobus (Fabricius, 1801)

Material Examined. C h h a t t i s g a r h, D u r g, Badbhum FRH, 20°34′22.5″, 81°19′4.4″, 419 m, 11.II.2014 (1♂), 31.III.2014 (1♂). Collected by Sunil Gupta and party; Korba, Lemru FRH, 22°38′26.2″, 82°50′19.0″, 447 m, 24.III.2014 (1♀). Collected by A. Majumder and party; Koriya, GGNP, Sonath FRH, 23°28′32.7″, 82°31′35.9″, 690m, 15.VII.2013 (1♀), 14.VII.2013 (2♂ 1♀), 13.XI.2013 (1♀). Collected by A.Parida and party .

Redescription. Body robust, clothed with greyish yellow pubescence, more so than in O. indianus and O. anogeissi , with fewer spots and patches of pubescence ( Fig. 1Q, T ); vertex broad, densely pubescent, without spots and patches ( Fig. 1U ); frons with dense, yellowish white pubescence; gena little longer than that of O. indianus and O. anogeissi ( Fig. 1V ); antenna 11-segmented, granulations on antennomere I similar to those on O. indianus in both the sexes, more granulations on male antenna than on female antenna ( Fig. 2F,G ), antennomere III warty, more than twice longer than IV ( Fig. 1W ); pronotum greyish yellow throughout, with a very small spot at base ( Fig. 1U ); elytra elongate, 1 large, broad, kidney-shaped, whitish yellow patch close to scutellum on either side of elytra, 1 small, suboval patch laterally in front of middle, 1 suboval, large, whitish yellow patch behind middle of elytra; elytral apex rounded ( Fig. 1T ); without any pale whitish spots or bands on lateral margins of abdominal segments ( Fig. 1R, S ). Legs densely pubscent, mesocoxal cavities closed ( Fig. 1S ), tarsal claws diverging by more than 90° ( Fig. 1X ). Median lobe little longer than median struts ( Fig. 3G ); medial part smaller than tegmen. Apex of median lobe rounded, smooth throughout ( Fig. 3I ). Ring portion of tegmen long ( Fig. 3G ); parameres almost united, basally broader, tips covered with small setae ( Fig. 3I ). Endophallus attached between bifurcated parts of median lobe, elongate ( Fig. 3H ).

Figures

Fig. 1. Olenecamptus species. O. indianus: A) Dorsal view, B) Ventral view, C) Coxal cavities, D) Elytra with scutellum, E) Pronotum, F) Head and frons, G) Antenna, H) Tarsus and claw. O. anogeissi: I) Dorsal view, J) Ventral view, K) Coxal Cavities, L) Elytra with scutellum, M) Pronotum, N) Head and frons, O) Antenna, P) Tarsus and claw. O. bilobus: Q) Dorsal view, R) Ventral view, S) Coxal cavities, T) Elytra with scutellum, U) Pronotum, V) Head and frons, W) Antenna, X) Tarsus and claw.

Fig. 2. Olenecamptus species. O. indianus: A) Color variation of the elytra, B) Antennal granulations in male, C) Antennal granulations in female. O. anogeissi, antennal granulations: D) Male, E) Female. O. bilobus, antennal granulations: F) Male, G) Female.

Fig. 3. Olenecamptus species, male genitalia. O. indianus: A) Dorsal view, B) Ventral ventral, C) Tip of median lobe and parameres. O. anogeissi: D) Dorsal view, E) Ventral view, F) Tip of median lobe and parameres. O. bilobus: G) Dorsal view, H) Ventral view, I) Tip of median lobe and parameres.