Birketsmithiola smithi, Volynkin, 2022

Volynkin, Anton V., 2022, Taxonomic review of the Afrotropical genus Birketsmithiola Krüger with descriptions of five new species (Lepidoptera: Erebidae: Arctiinae), Zootaxa 5205 (1), pp. 73-86 : 77

publication ID 10.11646/zootaxa.5205.1.5

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Birketsmithiola smithi

sp. nov.

Birketsmithiola smithi View in CoL sp. n.

( Figs 9–11 View FIGURES 9–16 , 24 View FIGURES 21–24 , 25 View FIGURES 25–28 , 31 View FIGURES 29–33 )

Type material. Holotype ( Figs 9 View FIGURES 9–16 , 25 View FIGURES 25–28 ): male, “ Zambia 1460m | Mutinondo Wilderness Area , | Mpika, Northern Prov. | 12°27′06′′S, 31°17′30′′E | 14–17.ii.2019 Actinic Light Trap | Dérozier, V., Mulvaney, L., | Takano, H. Leg. | ANHRT:2019.4” / “ANHRTUK | 00139630” / “Slide | AV6435 ♂ | A. Volynkin ” ( ANHRT). GoogleMaps

Paratypes: ZAMBIA: 2 males, 5 females, same locality and collectors as holotype, unique numbers: ANHRT 00111046–00111049 , 00139536 , 00139537 , 00192205 , gen. prep. Nos.: AV6787 (male) and AV6788 (female) ( ANHRT) ; MALAWI: 1 male, Central Region, Lilongwe District, 1560m, Ntchisi Forest Reserve , E 034°00.677′ S13°22.073′, 18–19.ii.[20]04, A.J. Kingston [leg.], gen. prep. No.: AV6785 ( AKW) .

Diagnosis. The forewing length is 15.5–16.0 mm in males and 16.0–18.0 mm in females. Birketsmithiola smithi sp. n. is distinguished from other congeners by its conspicuous red forewing costal strip which is the broadest in the genus. The male genital capsule of the new species differs from other species in the B. nyassana species group by the slenderer uncus, the more elongate valvae, and the apically bilobate and serrulate juxta (it bears an apical dentate crest in the similar species). The phallus of B. smithi sp. n. is more upcurved distally than in the similar congeners and has a markedly larger midventral protrusion. The vesica of the new species is the broadest in the species group and bears a medial cornutus which is absent in B. nakuru sp. n., B. nyassana and B. bvumba sp. n. In the female genitalia, B. smithi sp. n. is distinguished from B. nakuru sp. n. and B. nyassana by the broader anterior section of the ductus bursae, the broader and more heavily sclerotised posterior section of the corpus bursae, and the longer, elliptical anterior section of the corpus bursae, which is more or less globular in the aforementioned congeners.

Distribution. The new species is known from two localities in north-eastern Zambia and central Malawi ( Fig. 35 View FIGURE 35 ).

Etymology. The new species is dedicated to Mr. Richard Smith, Chairman of the Board of Trustees, African Natural History Research Trust, who, through organising and undertaking numerous entomological expeditions to Sub-Saharan Africa has enabled the discovery of numerous species new to science. The name is a noun in the genitive case.


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