Tricosa indochinensis Cognato, Smith & Beaver, 2020

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

Tricosa indochinensis Cognato, Smith & Beaver, 2020 Fig. 77C, D, J

Tricosa indochinensis Cognato, Smith & Beaver, 2020 (in Cognato et al. 2020a): 549.

Type material.

Holotype (NMNH), paratypes (IZAS, 1; NMNH, 4; RABC, 1).

Diagnosis.

3.2-3.4 mm long (mean = 3.32 mm; n = 5); 2.83-2.91 × as long as wide. This species is distinguished by the discal interstrial punctures confused; protibiae distinctly triangular; and pronotum anterior margin with a clear row of eight moderate serrations.

This species is very similar to T. cattienensis and is distinguished by the larger size and narrower form ( Cognato et al. 2020a).

Similar species.

Heteroborips indicus , Tricosa cattienensis .

Distribution.

China (Yunnan), India (West Bengal), Thailand.

Host plants.

Known only from Pterocarpus ( Fabaceae ) ( Cognato et al. 2020a).

Figures

Figure 77. Dorsal, lateral and declivital view of Tricosa cattienensis holotype, 2.7 - 3.1 mm (A, B, I), T. indochinensis holotype, 3.2 - 3.4 mm (C, D, J), T. jacula holotype, 3.2 mm (E, F, K), and T. metacuneolus paratype, 2.4 - 2.5 mm (G, H, L).