Immanus colossus (Blandford)

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 colossus (Blandford)

( Fig. 2 D‒F)

Xyleborus colossus Blandford, 1896: 207 .

Ambrosiodmus colossus (Blandford) : Wood, 1989: 169.

Xyleborus szentivanyi Schedl, 1968: 267 : Wood, 1989: 169 (synonymy).

Immanus colossus (Blandford) : Hulcr & Cognato, 2013: 102.

Diagnosis: Elytral declivity with entire raised margin, without a series of distinct spines or teeth, prolonged forwards so that its face is longer than wide; interstriae 2 raised in middle of declivity with 3‒4 tubercles on raised section. Declivital vestiture of fine, semi-appressed hairs, longer on interstriae 2. Eyes with upper and lower parts equal in size. Anterior margin of pronotum with median teeth fused forming a carina. Very large species, 8.5‒9.0 mm long.

Distribution: Indonesia (West Papua), Papua New Guinea.

New record: Indonesia, W. Papua, 130 km SE Kaimana, Omba (=Yamor) river, 10‒20 km from coast, S04 o 05’49’’, E134 o 54’09’’, 10‒20 m, 09‒11.ii.2011, leg. A. Weigel (RAB, 1).

Biology: Recorded only from Celtis sp. ( Cannabaceae ) ( Hulcr & Cognato 2013).

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)