Lanurgus subsulcatus Browne, 1970

Jordal, Bjarte H., 2021, The mainly South African genus Lanurgus revised (Coleoptera, Scolytinae), Zootaxa 5027 (1), pp. 87-106 : 103

Lanurgus subsulcatus Browne, 1970

( Figs 49, 50, 52, 53, 55, 56 )

Type material. Male holotype: [ South Africa] Cape Prov., Swellendam ii. 1932, R.E. Turner coll. Paratype male: Mossel Bay , 15-18. iii. 1922, R.E. Turner coll [both in NHMUK] .

Diagnosis, female. Length 1.5–1.7 mm, 2.5–2.7 × as long as wide, colour black. Scapus with long dorsal spike on its dorsal side, with a long tuft of setae as long as the spike; antennal club with two angulate sutures clearly marked; frons broadly concave, with a small median triangular area just above epistoma with short erect setae and below this area with a peculiar tuft of longer setae reaching near tips of protruding mandibles; declivital interstriae 2 slightly impressed and glabrous; protibiae with three apical denticles. Male identical to female except scapus rounded with few setae, declivity with a pair of rounded nodules.

Distribution: South Africa.

New records. South Africa, Cape Prov., Worchester [GIS: -33.67, 19.41], Dec. 1933, R.E. Turner; Cape Prov., Mossel Bay [GIS: -34.16, 22.10], June 1921, R.E. Turner [NHMUK]. Eastern Cape: Alexandria Forest [GIS: - 33.70, 26.35], B. Jordal, leg., 15.xi.2006 #2. Western Cape: Nature’s Valley [GIS: -33.965, 23.562], B. Jordal, leg., 9.xi.2006 #10, ex [ Searsia ] Rhus chirindensis .

Biology. Searsia chirindensis (Anacardiaceae) is the first reported host plant for this species. Teneral specimens were produced under bark of 2–4 cm thick branches.

Figures

FIGURES 48–56. Dorsal, lateral and frontal view of Lanurgus carinatus sp. nov. male holotype (48, 51, 54), Lanurgus subsulcatus male holotype (49, 52), female (50, 53, 56) and male (55).