Anisandrus improbus (Sampson, 1913) Fig. 21E, F, K

Xyleborus improbus Sampson, 1913: 444.

Anisandrus improbus (Sampson): Hulcr et al. 2007: 578.

Type material.

Holotype (NHMUK).

Diagnosis.

3.3-3.4 mm long (mean = 3.4 mm; n = 2); 2.43-2.54 × as long as wide. This species is distinguished by the mesonotal mycangial tuft the length of the scutellum; elytral disc convex; declivity appearing flat when viewed laterally; declivital striae clearly impressed; declivital summit armed by a minute denticle on each interstriae 2 and 3; granules present on basal 1/2 of interstriae 2-4; declivital posterolateral margin costate to interstriae 7; declivital face strongly shiny; and declivital interstriae clearly punctate.

Similar species.

Anisandrus eggersi, A. feronia, A. mussooriensis .

Distribution.

China (Xizang), India (Assam, West Bengal).

Host plants.

Recorded from Quercus ( Fagaceae), Machilus ( Lauraceae), and Eucalyptus ( Myrtaceae) (Maiti and Saha 2004).