Xylotrechus smei

Adult body length 10.4–11.9 mm in males, 11.9–16.6 mm in females; humeral width 2.5–2.9 mm in males, 2.8–3.9 mm in females. Body elongate, belonging to subfamily Cerambycinae, tribe Clytini. Eyes reniform. Mandible black, broader in basal half with a broad, flat shallow depression covered with pale white setae, few golden setae in middle, narrowing toward blunt glabrous apex. Surface finely punctulate, covered with moderately long setae; apicolateral and posterior margin with short setae intermixed with few long setae. Prothorax 1.3 times wider than head in both sexes. Procoxae round, slightly convex, with shallow short longitudinal depression in middle, margin bicarinate from base to middle. Lateral preapical margin of antennomeres 3–6 with few long golden setae. Metasternum with fine sparser punctures covered with pale white setae, margin with denser setae. Sternite VII of female 1.8 times longer and 1.5 times wider than that of male; in male broadly rounded at apex, with few hairs on surface, margin fringed with hairs. Tergite VII of female 1.5 times longer and 1.2 times wider than that of male; in male 1.4 times longer than wide, posterior margin very weakly emarginated.

Literature