Philippinithosia lourensi, Volynkin & Černý, 2023

Volynkin, Anton V. & Černý, Karel, 2023, On the taxonomy of “ Tigrioides ” leucanioides (Walker) with descriptions of two new genera and ten new species from the Oriental realm (Lepidoptera: Erebidae: Arctiinae: Lithosiini), Zootaxa 5352 (2), pp. 151-176 : 159-160

Philippinithosia lourensi sp. n.

http://zoobank.org/ urn:lsid:zoobank.org:act:BFAF2275-98B7-4BFB-9A2F-99F7412E33FB

( Figs 28–31 , 58, 59 , 72 )

Type material. Holotype ( Figs 28 , 58 ): male, “the Philippines E.Luzon | Sierra Madre 180m | 5 km W of Gen Nakar | 14°46.703’N 121°36.799’E | prim forest edge | 12.02.2007 K Knoblich | & JH Lourens leg.” / “Museum Witt | München” / “Slide | ZSM Arct. | 2021-085♁ | A. Volynkin ” (MWM/ ZSM).

Paratypes. THE PHILIPPINES: 5 males, 12 females, E Luzon , N. Ec. Bongabon Bgy Laby, Sierra Madre Mingan Mts, 15°38’N 121°15’E, 950m, 7–9.ix.2005, J.H. Lourens leg., gen. prep. No.: ZSM Arct. 2021-323 (female) (MWM/ ZSM); 1 male, 1 female, Mindoro , Mt. Halcon , 1000m, 20–25.vi.2002, local people leg. (MWM/ ZSM); 2 males, 820m, Negros ( western Negros Prov. ), Mt. Kanlaon, W route via Mambucal, 15.vii.1996, primary forest, R. Brechlin leg., gen. prep. Nos.: ZSM Arct. 2021-004, ZSM Arct. 2021-079 (prepared by Volynkin) (MWM/ ZSM) .

Diagnosis. The forewing length is 14.5–16.0 mm in males and 18.0– 18.5 mm in females. The male genital capsule of the new species is most similar to P. settelei but differs in the longer and distally broader uncus, the somewhat longer vinculum, the narrower setose apex of the valva, and the broader setose apex of the distal saccular process. The phallus of P. lourensi is broader and somewhat narrower than in P. settelei . Compared to P. settelei , the vesica of the new species is longer and proximally broader, and has longer and broader diverticula bearing larger terminal cornuti. The female genitalia of the two species are similar but in P. lourensi , the ductus bursae is longer, the rugose posterior area of the corpus bursae is shorter, and the signa are somewhat smaller than the corresponding structures of P. settelei .

Distribution. The new species is known from the islands of Luzon, Negros and Mindoro (the Philippines).

Etymology. The new species is named after Dr Johannes H. Lourens, a dedicated researcher of the Lepidoptera fauna of the Philippines and collector of the part of the type series including the holotype. The name is a noun in the genitive case.

Figures

FIGURES 24–31. Leucanithosia spp. (24–27) and Philippinithosia lourensi (28–31): adults. Depositories of the specimens: 24, 26, and 28–31 in MWM/ZSM (24 and 26 ex CKC); 25 and 27 in CKC.

FIGURES 58–60. Philippinithosia spp.: male genitalia. The specimens dissected are deposited in MWM/ZSM.

FIGURES 69–72. Leucanithosia (69–71) and Philippinithosia (72) spp.: female genitalia. Depositories of the specimens dissected: 69, 70, and 72 in MWM/ZSM; 71 in CKC.