Ctonoxylon cornutum Eggers, 1943

Jordal, Bjarte H., 2024, An integrated taxonomic revision of Ctonoxylon (Coleoptera, Curculionidae, Scolytinae) reveals new Malagasy species originating from multiple recent colonisations of the island, ZooKeys 1203, pp. 95-130 : 95-130

Ctonoxylon cornutum Eggers

Figs 40 , 43 , 46

Ctonoxylon cornutum Eggers, 1943: 246 .

Type material.

Holotype: Kamerun, coll Strohmeyer [ SDEI].

Diagnosis.

Length 3.8–4.1 mm. 1.9–2.0 × as long as broad; colour dark brown. Upper and lower eye parts separated by 1.5 × the width of upper part; pronotal eye scraper acutely pointed; a sharp carina running from scraper to procoxa, without associated groove or propleural pit; anterior pair of teeth on pronotum much larger than other asperities; scutellar shield at level with elytra; striae weakly impressed; interstrial setae short and bristle-like, dense, confused with similar type of ground vestiture; elytral apex nearly entire, very slightly emarginated; elytral suture buckled a little behind scutellar shield; resting position of mesotibiae marked on metaventrite.

Distribution.

Cameroon.

Figures

Figures 39–47. Dorsal, lateral, and front views of 39, 42, 45 Ctonoxylon camerunum female 40, 43, 46 Ctonoxylon cornutum female holotype, and 41, 44, 47 Ctonoxylon torquatum sp. nov. female holotype.