Immanus acanthurus (Lea)

Beaver, R. A., Sittichaya, W. & Liu, Y., 2019, A review of the genus Immanus Hulcr & Cognato with a key to species (Coleoptera: Curculionidae: Scolytinae: Xyleborini), Zootaxa 4585 (2), pp. 378-386 : 382

Immanus acanthurus (Lea)

( Fig. 2 A‒C)

Tomicus acanthurus Lea, 1910: 137 .

Xyleborus acanthurus (Lea) : Schedl, 1938: 50.

Immanus acanthurus (Lea) : Hulcr & Cognato, 2013: 101.

Diagnosis: Elytral declivity matt, with a series of spines or teeth extending from the upper margin to the apex, declivity strongly impressed, concave above, lower half almost flat; margin with large spines, largest in middeclivity; striae and interstriae distinct, striae 1‒2 strongly impressed, interstriae with 1‒2 rows of minute granules, without larger tubercles; elytral vestiture sparse, of short, bristle-like setae. Eyes with upper and lower parts equal in size. Anterior margin of pronotum with 6‒8 more or less separate asperities. Large species, 7.0‒ 7.5 mm long.

Distribution: Australia, Papua New Guinea.

Biology: Unknown.

Figures

FIGURE 2. Dorsal, lateral and postero-lateral views of Immanus species: A–C, Immanus acanthurus (Lea); D-F, Immanus colossus (Blandford); G–I, Immanus desectus (Eggers); J–L Immanus pseudocolossus (Schedl); M-O, Immanus sarawakensis (Eggers)