Siccia campo Volynkin, sp. nov.

(Figs 3, 31)

Type material. Holotype (Figs 3, 31): male, “ Cameroon 48m | Campo Ma’an N. P. | 2°16'56''N, 9°57'03''E | 10– 22.iii.2018 UV cold | cathode light trap | Fotsing, E., Ishmael, K., | Miles, W., Safian, S. leg. | ANHRT:2018.3” / “ ANHRTUK | 00405845 ” / “Slide | AV8717 ♂ | A. Volynkin” (ANHRT).

Note. Belongs to the S. atriguttata Hampson, 1909 species-group established by Volynkin (2023).

Diagnosis. The forewing length is 6.5 mm in the male holotype. Siccia campo sp. nov. (Fig. 3) is morphologically most similar to S. nepa Volynkin, 2023 (Fig. 4), described from the coastal Ivory Coast, but can be easily distinguished by its larger size, the larger forewing markings, and the paler hindwing with a more distinct discal spot. In the male genital capsule, the new species (Fig. 31) differs from S. nepa (Fig. 32) in the shorter and thinner uncus, the less elongate and tapered distal section of the valva, and the cucullus having a short spiniform process on its inner surface and a thinner ventro-apical process. The phallus of S. campo sp. nov. has a strongly dilated distal section with a convex dorsal margin, whereas it is only slightly and gradually dilated in S. nepa . The vesica configurations of the two species are very similar, but in S. campo sp. nov., the medial bilobate diverticulum is broader and has longer lobes, and the ventral gelatinous diverticulum has a larger proximal lobe, in comparison to the corresponding structures of S. nepa .

The female is unknown.

Distribution. Southern coastal Cameroon (Campo Ma’an National Park).

Etymology. The specific epithet is derived from Campo Ma’an National Park, where the new species is found. The name is a noun in the nominative singular in apposition.