Euwallacea semiermis (Schedl, 1934)

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

Euwallacea semiermis (Schedl, 1934) Fig. 57G, H, L

Xyleborus semiermis Schedl, 1934c: 89.

Euwallacea semiermis (Schedl): Beaver et al. 2014: 49.

Type material.

Lectotype (NHMW).

Diagnosis.

2.5-2.75 mm long (mean = 2.62 mm; n = 3); 2.78-2.89 × as long as wide. This species is distinguished by its small size; short, steep, sulcate declivity armed only by one transverse row of four granules, one on interstriae 1 and three at declivital summit; pronotum from dorsal view elongate (type 7); and pronotal asperities fine, minute.

Similar species.

Euwallacea minutus .

Distribution.

Indonesia (Java), Thailand.

Host plants.

Recorded only from Schefflera ( Araliaceae ) ( Kalshoven 1959b).

Figures

Figure 57. Dorsal, lateral and declivital view of Euwallacea neptis holotype, 4.2 mm (A, B, I), E. perbrevis, 2.3 - 2.5 mm (C, D, J), E. piceus, 2.2 - 2.6 mm (E, F, K), and E. semiermis lectotype, 2.5 - 2.75 mm (G, H, L).