Cryptoxyleborus quadriporus Beaver, 1990

Smith, Sarah M., Beaver, Roger A. & Cognato, Anthony I., 2020, A monograph of the Xyleborini (Coleoptera, Curculionidae, Scolytinae) of the Indochinese Peninsula (except Malaysia) and China, ZooKeys 983, pp. 1-442 : 1

Cryptoxyleborus quadriporus Beaver, 1990 Fig. 39A, B, I

Cryptoxyleborus quadriporus Beaver, 1990: 281.

Type material.

Holotype (NHMUK).

New records.

Thailand: Chiang Mai, Fang, 12-19.iv.1958, T.C. Maa (BPBM, 1).

Diagnosis.

3.2-3.3 mm long (n = 2); 3.2-3.4 × as long as wide. This species is distinguished by the two distinctive pairs of round mycangial pits along the basal slope of elytra; and antennal funicle 4-segmented.

Similar species.

Cryptoxyleborus eggersi , C. stenographus , C. turbineus .

Distribution.

Thailand.

Host plants.

Unknown.

Remarks.

Only two specimens of this species are known, both from Chiang Mai, Thailand.

Figures

Figure 39. Dorsal, lateral and declivital view of Cryptoxyleborus quadriporus holotype, 3.2 - 3.3 mm (A, B, I), C. stenographus, 2.35 - 2.6 mm (C, D, J), C. subnaevus, 2.2 - 2.7 mm (E, F, K), and C. turbineus, 3.2 - 3.3 mm (G, H, L).