Xyloctonus magnus, Jordal, 2024

Jordal, Bjarte H., 2024, Integrated taxonomy, biology and biogeography of the Afrotropical genus Xyloctonus (Coleoptera, Curculionidae, Scolytinae), Deutsche Entomologische Zeitschrift 71 (1), pp. 67-84 : 67

Xyloctonus magnus sp. nov.

Figs 51 , 53 , 55

Type material.

Holotype: Madagascar, Anjozorobe 11 km SE [-18.43, 47.94], Malaise trap, BLF2375, B. Fischer, leg. [CAS].

Diagnosis.

Largest species in the genus, 3.4 mm long; scutellar shield longitudinally elongated as a heart-shaped scoop; sutural side of interstriae 1 with dense fine trifid setae.

Description.

Length 3.4 mm, 1.9 × as long as wide, colour dark brown. Frons impressed just above epistoma, nearly glabrous. Antennal club with one strongly procurved suture, others faint; funiculus 6-segmented. Upper and lower eye parts widely separated, roughly punctured between. Pronotum very broad, broader than elytra; anterior margin with four raised teeth, median pair slightly longer, asperities near summit as fine granules, intermixed with shiny punctures. Scutellar shield elongated, densely pilose, narrowly impressed to form a heart-shaped scoop. Elytral striae with transversely elongated punctures, spaced by longitudinally raised ridges, the whole stria appearing as a dashed line. Elytral interstriae 9 curves before apex and continues to elytral suture; elytral suture straight. Metaventrite and surrounding sclerites, including ventrite I, with mainly trifid setae.

Distribution.

Madagascar.

Biology.

One specimen was taken in a Malaise trap.

Etymology.

Based on the Latin masculine adjective magnus, meaning large, referring to the body size of the species.

Figures

Figures 50 - 55. Dorsal, lateral and front view of male X. quadridens (50, 52, 54); X. magnus, holotype (51, 53, 55).