Anisandrus eggersi (Beeson, 1930)

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

Anisandrus eggersi (Beeson, 1930) Fig. 20C, D, J

Xyleborus eggersi Beeson, 1930: 215.

Cyclorhipidion eggersi (Beeson): Maiti and Saha 2004: 105.

Anisandrus eggersi (Beeson): Hulcr et al. 2007: 578.

Type material.

Paratypes (FRI, 1; NMNH, 1).

New records.

Bhutan: km 87 von Phuntsholing, 22.v.1972, Nat.-Hist. Museum Basel - Bhutan Expedition (NHMB, 1) [Misdetermined by K. E. Schedl as Xyleborus fabricii Schedl]. Thailand: Chiang Mai, Doi Inthanon, 5.viii.[20]02, R.A. Beaver, K. Koivisto (RABC, 1); as previous except: 13.xi.[20]11, W. Sittichaya (RABC, 2). Loei, Phu Hin Rongkla N. Park, Huai Man Daeng Naoi @ trail, 16°57'N, 101°03'E, 17.iii-10.iv.2003, G.W. Courtney, ex malaise trap (MSUC, 2). Vietnam: Cao Bang, 22°36.804'N, 105°51.982'E, 1831 m, 17.iv.2014, Cognato, Smith, Pham, 0.3-3.0 cm twigs/branches (MSUC, 10). Lao Cai, Hoang Lien N.P., 22.35, 103.77, 1500-2000 m, 20.v.2019, VN185, S.M. Smith, A.I. Cognato, ex branch; 1-2 cm (MSUC, 1); as previous except: 20.v.2019, VN194, ex dead sapling; 1 cm at base (MSUC, 1).

Diagnosis.

3.1-3.2 mm long (mean = 3.12 mm; n = 5); 2.21-2.29 × 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; two or three small tubercles present on basal 1/2 of interstriae 2; declivital posterolateral margin costate to interstriae 5; declivital face strongly shagreened; and declivital interstriae clearly punctate.

Similar species.

Anisandrus feronia , A. improbus , A. mussooriensis .

Distribution.

Bhutan*, India (West Bengal), Myanmar, Nepal, Thailand*, Vietnam*.

Host plants.

Polyphagous, recorded from five genera in five different families ( Euphorbiaceae , Lauraceae , Rosaceae , Staphyleaceae , Symplocaceae ) ( Maiti and Saha 2004).

Remarks.

Maiti and Saha (2004) suggest that it is a high-altitude species.

Figures

Figure 20. Dorsal, lateral and declivital view of Anisandrus dispar, 3.1 - 3.5 mm (A, B, I), A. eggersi, 3.1 - 3.2 mm (C, D, J), A. feronia holotype, 2.9 mm (E, F, K), and A. geminatus, 2.9 - 3.2 mm (G, H, L).