Ctonoxylon uniseriatum Schedl, 1965

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 uniseriatum Schedl

Figs 82 , 85 , 88

Ctonoxylon uniseriatum Schedl, 1965: 114 .

Ctonoxylon capensis Schedl, 1971: 8 , synonym by Beaver 2011.

Cryphalostenus erratium Schedl, genus et species nomen nudum.

Type material.

Holotype: [ Namibia] Deutsch S. W. Afrika [ NHMW] . Holotype of C. capensis : [ South Africa] Umgeberge, Cape Town , 1899 [ NHMW] .

Diagnosis.

Length 2.3–2.8 mm. 2.3–2.4 × as long as broad; colour dark brown. Male frons slightly inflated, smooth and impunctate with short setae near eyes and epistoma; female frons finely punctured with short erect setae; eye parts separated by the size of upper half; lateral anterior margin of prothorax with short elongated groove near front of procoxa; propleural pit large; scutellar shield detached from elytra; elytral suture a little buckled at midlength; apex entire; punctures on discal interstriae obscure, interstriae 1–7 with uniseriate, spatulate, curved setae, interstriae 8–10 sometimes with variably confused rows of setae, on declivital interstriae 1 and 2 setae partly confused, directed sideways; posterior metaventrite with unusually broad and long setae.

Distribution.

Namibia, South Africa.

New records.

South Africa, W. Cape province, 10 km N Hoekwil, Woodville [GIS: - 33.933, 22.639], 1. Nov. 2006 ; Knysna, Diepwalle [GIS: - 33.957, 23.152], 3. 11. 2006 and 7. 11. 2006 ; Knysna, Goudveld , Krisjan Se-Nek [GIS: - 33.913, 22.948], 5. 11. 2006, all collections ex liana, B. Jordal, leg. [ ZMUB] .

Biology.

A common species found exclusively in thin lianas ~ 1 cm in diameter. Females were excavating longitudinal tunnels in the pith and wood of rather fresh material which still exuded latex. Males had left the female either before egg laying or just after the first eggs were laid. Broods were small, with 3– 8 eggs per female (Table 5 ).

Remarks.

A specimen in NHMW marked as the holotype of Cryphalostenus erratium det. Schedl is not published. It is clearly the same species as C. uniseriatum .

Figures

Figures 81–89. Dorsal, lateral, and front views of 81, 84, 87 Ctonoxylon amanicum female 82, 85, 88 Ctonoxylon uniseriatum female, and 83, 86, 89 Ctonoxylon spinifer female.