Amasa cylindrotomica (Schedl, 1939)

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

Amasa cylindrotomica (Schedl, 1939) Fig. 8A, B, I

Pseudoxyleborus cylindrotomicus Schedl, 1939b: 40.

Xyleborus cylindrotomicus (Schedl): Schedl 1942c: 6.

Xylosandrus cylindrotomicus (Schedl): Wood 1989: 177.

Amasa cylindrotomica (Schedl): Dole and Cognato 2010: 525.

Xyleborus semitruncatus Schedl, 1942c: 35. Synonymy: Schedl 1951a: 79; Wood 1989: 177.

Xyleborus truncatellus Schedl, 1951a: 79. Synonymy: Kalshoven 1959a: 95.

Xyleborus jucundus Schedl, 1954a: 138 (new name for Xyleborus truncatellus Schedl, 1951 nec Schedl 1949). Synonymy: Kalshoven 1959a: 95.

Type material.

Lectotype (NHMW). Not examined.

Diagnosis.

2.1-2.4 mm long (mean = 2.25 mm; n = 2); 2.0 × as long as wide ( Sittichaya et al. 2019). This species is distinguished by its minute size, stout form with the pronotum approximately as long as the elytra; declivital surface shagreened, dull, glabrous; and antennal club type 5.

Similar species.

Amasa opalescens .

Distribution.

Indonesia (Java, Sumatra), Thailand.

Host plants.

Recorded from Syzygium aromaticum ( Myrtaceae ) ( Sittichaya et al. 2019).

Figures

Figure 8. Dorsal, lateral and declivital view of Amasa cylindrotomica, 2.1 - 2.4 mm (A, B, I), A. eugeniae paratype, 2.8 - 3.2 mm (C, D, J), A. galeoderma holotype, 3.0 mm (E, F, K), and A. gibbosa holotype, 3.5 - 3.6 mm (G, H, L).