Euwallacea interjectus (Blandford)

Beaver, Roger A. & Smith, Sarah M., 2022, The bark and ambrosia beetles of Bhutan (Coleoptera: Curculionidae: Scolytinae and Platypodinae): a synopsis with three new species of Scolytinae, Zootaxa 5174 (1), pp. 1-24 : 14

Euwallacea interjectus (Blandford) *

Xyleborus interjectus Blandford, 1894: 576 .

Euwallacea interjectus (Blandford) : Saha & Maiti 1984: 2.

This species is newly recorded from Bhutan.

New record. Bhutan, Gedu, 6.viii.[19]85, AF Padgham, ex Trewia nudiflora, CIE A 17491 (8) ( NMHL) .

Distribution. From the Indian subcontinent, China and South Korea through Southeast Asia and Indonesia to the Philippines, New Guinea and Solomon Islands. Introduced to North America, Hawaii and South America ( Argentina).

Biology. The species is polyphagous ( Beeson 1930; Browne 1961; Beaver & Liu 2010). Mallotus (= Trewia ) nudiflorus ( Euphorbiaceae ) has not been recorded previously as a host tree. The biology and gallery system have been described by Beeson (1930), Browne (1961) and Kalshoven (1959). The relationship of the beetle with its symbiotic fungus and with the pathogen causing fig wilt disease in fig trees in Japan is discussed by Jiang et al. (2021).