A monograph of the Xyleborini (Coleoptera, Curculionidae, Scolytinae) of the Indochinese Peninsula (except Malaysia) and China Author Smith, Sarah M. Department of Entomology, Michigan State University, 288 Farm Lane, East Lansing, Michigan 48824, USA https://orcid.org/0000-0002-5173-3736 camptocerus@gmail.com Author Beaver, Roger A. 161 / 2 Mu 5, Soi Wat Pranon, T. Donkaew, A. Maerim, Chiangmai 50180, Thailand Author Cognato, Anthony I. Department of Entomology, Michigan State University, 288 Farm Lane, East Lansing, Michigan 48824, USA text ZooKeys 2020 983 1 442 http://dx.doi.org/10.3897/zookeys.983.52630 journal article http://dx.doi.org/10.3897/zookeys.983.52630 1313-2970-983-1 7DED4CE2934C4539945F758930C927F9 C890C7FD4B2D57A8B1A062305ED42D53 Cnestus testudo (Eggers, 1939) Fig. 34E, F, I Xyleborus testudo Eggers, 1939b: 116. Xylosandrus testudo (Eggers): Wood and Bright 1992 : 801. Cnestus testudo (Eggers): Dole and Cognato 2010 : 532. Type material. Lectotype (NMNH), paratypes (TARI, 3). Diagnosis. 4.2-4.4 mm long (mean = 4.31 mm; n = 5); 1.54-1.62 x as long as wide. This species is distinguished by the presence of a mesonotal mycangial tuft on the pronotal base; elytral disc short, 3 x scutellum length; declivity obliquely truncate; pronotum type 1 when viewed dorsally; antennal club type 2, with two sutures visible on posterior face; antennal funicle 4-segmented; protibiae distinctly triangular; procoxae narrowly separated; declivital posterolateral margin weakly carinate from apex to declivital base along interstriae 7; declivital interstriae granulate, setose with recumbent ground vestiture and a median row of long erect hair-like setae; declivital striae 1 impressed; discal punctures dense, confused; and uniformly pitch black or piceous colored body with brown legs and antennae. Similar species. Cnestus ater , C. gravidus , C. improcerus , C. mutilatus . Distribution. China (Yunnan), Laos, Taiwan, Thailand, Vietnam. Host plants. Unknown.