Microperus fulvulus (Schedl, 1942) stat. res.

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

Microperus fulvulus (Schedl, 1942) stat. res. Fig. 67C, D, J

Xyleborus fulvus Schedl, 1939b: 48. Preoccupied by Murayama 1936.

Xyleborus fulvulus Schedl, 1942c: 35 (new name for X. fulvus Schedl, 1939 nec Murayama 1936).

Microperus fulvulus (Schedl): Hulcr 2010: 111 (as a synonym of Microperus corporaali Eggers).

Type material.

Lectotype Xyleborus fulvus (NHMW), paralectotype (NHMW, 1).

New records.

China: Chongqing Mun., S-W Univ., viii.2015, Su, T-L., ex Cinnamomum camphora (RABC, 1). Sichuan, De Chang Co., roadside, vii. 2015, Su, T-L., ex Prunus yedoensis (RABC, 1). Thailand: Chiang Mai, Doi Pui, 28°50'23"N, 98°53'53"E, 1200-1300 m, vii.2014, S. Sanguansub et al. (RABC, 1). Chumphon, 1.iii.2010, W. Sittichaya, ex EtOH trap in durian plantn [plantation] (MSUC, 1; RABC, 1). [Chaiyaphum], Phu Khieo N.P., vii.2005, Hulcr et al. (RABC, 1). Nakhon Sri Thammarat, Namtok Yong N.P., Campgrd, 8°10.434'N, 99°44.508'E, 80 m, 8-15.vii.2008, U-prai, K., ex Malaise trap (QSBG, 1); as previous except: 29.vii-5.viii.2008 (RABC, 1); as previous except: 30-31.vii. 2008, ex pan trap (QSBG, 1). Phetchabun, Nam Nao N.P., helicopter landing ground, 16°43.156'N, 101°35.108'E, 890 m, 8-9.vii.2006, N. Hongyothi & L. Janteab, pan traps (QSBG, 1). Songkhla, Rathapum Distr., Silvic. Res. Stn, 21.ii.2009, W. Sittichaya, ex Cinnamomum iners branch (RABC, 1).

Diagnosis.

2.8-2.95 mm long (mean = 2.88 mm; n = 4), 1.93-2.19 × longer than wide. This species is distinguished by the elytral disc flat; declivity long, gradual; all declivital interstriae uniformly granulate from base to apex; declivital face convex; posterolateral costa strongly carinate; interstriae densely covered with long erect hair-like setae, setae longer than two interstrial widths; striae setose, setae short, recumbent, as long as 1.5 strial widths.

This species is distinguished from the closely related M. chrysophylli and M. corporaali by the convex declivity and strongly carinate posterolateral costa.

Similar species.

Coptodryas inornata , Microperus chrysophylli , M. corporaali .

Distribution.

China* (Chongqing, Sichuan), Indonesia (Sumatra), Thailand*.

Host plants.

Recorded from Cinnamomum camphora , C. iners ( Lauraceae ), Myristica fragrans ( Myristicaceae ), and Prunus yedoensis ( Rosaceae ).

Remarks.

The species was incorrectly synonymized with Microperus corporaali (Eggers) by Hulcr (2010) based on examination of a X. fulvus paratype in the NMNH. Hulcr concluded that the species were morphologically identical. However, comparison of the lectotypes shows that the species are closely related but are significantly different, particularly in regard to the declivity and body size. Specific details are given in the diagnosis and key.

Figures

Figure 67. Dorsal, lateral and declivital view of Microperus diversicolor, 1.6 - 1.8 mm (A, B, I), M. fulvulus lectotype, 2.8 - 2.95 mm (C, D, J), M. kadoyamaensis, 1.8 - 2.0 mm (E, F, K), and M. kirishimanus, 1.6 - 1.8 mm (G, H, L).