Siccia kabadougou Volynkin, 2022

Volynkin, Anton V., Müller, Günter C., Prozorov, Alexey M. & Saldaitis, Aidas, 2022, Two new peculiar species of the genus Siccia Walker from Mali and Ivory Coast (Lepidoptera: Erebidae: Arctiinae), Ecologica Montenegrina 54, pp. 44-52 : 47-51

Siccia kabadougou Volynkin , sp. n.

https://zoobank.org/ urn:lsid:zoobank.org:act:7FBF9525-DCB9-4CDD-809D-BB2A74590553

( Figs 4 , 11 )

Type material. Holotype ( Figs 4 , 11 ): male, “ Ivory Coast 479m | Denguélé Classified Forest | 09°30'0.6''N, 07°40'51.1''W | 11–18.xi.2019 LepiLED Light | Trap. Aristophanous, M., | Dérozier, V., Moretto, P., | Ouattara, S. Leg. | ANHRT:2019.23” / “Slide | AV6632 ♂ | A. Volynkin ” / “ANHRTUK | 00223553” ( ANHRT).

Diagnosis. The male of S. kabadougou sp. n. ( Fig. 4 ) is very similar to S. kravchenkoi sp. n. ( Figs 1, 2 ) but is distinguished by the somewhat more subapically convex costal margin of the forewing, the presence of two smaller ochreous-orange costal spots in the subbasal area (vs. one larger spot in S. kravchenkoi sp. n.), and the uniform dark brownish-grey hindwing with only slight ochreous-orange suffusion along the anal margin whereas the hindwing of the congener is ochreous-yellow with an intense dark brownish-grey suffusion along the costal margin and weaker suffusion medially. The male genital capsule of the new species ( Fig. 11 ) differs from that of S. kravchenkoi sp. n. ( Figs 9, 10 ) in the more medially convex dorsal margin of the valva, the rounded and ventrally protruding valva apex with a markedly shorter distal process directed ventrally-distally (whereas it is directed distally in the congener), the shorter ventral subapical process, and the longer, narrowly triangular distal saccular process. Compared to S. kravchenkoi sp. n., the phallus of S. kabadougou sp. n. is less curved medially and has a more apically tapered and upcurved coecum. The vesica shape of the new species is similar to that of S. kravchenkoi sp. n. but the dorsal cornutus is shorter (in proportion to the phallus length), only slightly larger than the lateral one, and the lateral diverticulum is absent.

Description. Adult male ( Fig. 4 ). Forewing length 8.0 mm in holotype. Antenna blackish-brown and ciliate. Head ochreous-orange with brown spot dorsally. Thorax brown, tegula and patagia brown, edged with ochreous-orange scales. Forewing elongate and narrowly triangular with slightly subapically convex costal margin, ground colour blackish-brown with slight orange suffusion along anal margin. Cell with two black spots: one sub-proximally, small and dot-like, the other discal, larger and reniform. Costal margin with six ochreous-orange spots: two in subbasal area, small and diffuse, one in proximal part of medial area, elongate and distinct, one in distal part of medial area, shorter and diffuse, one outwardly from discal spot, trapezoid and distinct, and one subapically, small, triangular and distinct. Terminal area ochreous-orange with blackish spot medially. Forewing cilia ochreous-orange. Hindwing uniform dark brownish-grey with slight orange suffusion along anal margin. Hindwing cilia ochreous-orange with two spots of darker brownish-grey scales apically and medially. Abdomen brown with admixture of ochreous-orange scales, and lateral tufts of hair-like androconial scales. Male genitalia ( Fig. 11 ). Uncus elongate, slender, distally dilated and apically tapered with tiny claw-shaped tip. Tegumen with weakly sclerotised and strongly posteriorly dilated arms. Tuba analis tubular medially and distally and strongly dilated basally, scaphium slender but well sclerotised. Vinculum somewhat shorter than tegumen, U-shaped, with small sparse corema medially. Valva elongate, with dilated medial section with strongly convex dorsal margin, and narrower distal section with parallel margins. Valva apex with broad rounded protrusion distally-ventrally and short, straight, narrowly triangular and apically pointed apical process directed distally-ventrally. Subapical ventral process very short, triangular, denticle-like. Sacculus narrow with short, narrowly triangular distal process directed dorsally. Juxta short but broad, band-like with deep anterior medial depression. Phallus elongate and tubular, somewhat upcurved medially and slightly dilated proximally and distally. Phallus coecum short, broad and straight basally, and narrowly conical, with apically rounded and upcurved tip. Vesica sack-like, shorter than phallus, with one large and slightly curved claw-like cornutus dorsally and one similar but somewhat smaller cornutus medially-laterally. Vesica ejaculatorius originating subbasally on ventral side and having small semiglobular ventral protrusion and elongate and thin basal plate.

Female unknown.

Distribution. The new species is known only from its type locality in north-western Ivory Coast.

Etymology. The species is named after the Kabadougou Kingdom which once flourished in north-western Ivory Coast, where the type specimen was collected.

Figures

Figures 1–8. Siccia spp.: adults. Depositories of the specimens: 1 in WIGJ; 2–4 and 6 in ANHRT; 5 in NHMUK (©The Trustees of NHMUK); 7 is after Hacker (2016); 8 in MWM/ZSM.

Figures 9–12. Siccia spp.: male genitalia. Depositories of the specimens dissected: 9 in WIGJ; 10–12 in ANHRT.