Sundabitecta Volynkin, Černý, 2025

Volynkin, Anton V., Černý, Karel & Huang, Si-Yao, 2025, On the generic assignment of the taxa placed in the Oriental footman-moth genus Teulisna with the description of three new genera, one subgenus and eighteen new species, Ecologica Montenegrina 88, pp. 104-163 : 107-108

Genus Sundabitecta Volynkin, Černý & Huang, gen. n.

https://zoobank.org/ urn:lsid:zoobank.org:act:B55C0ADB-0AA6-4F80-B906-4070AB6775BD

Type species: Bitecta fasciata Gaede, 1925 , by present designation.

Diagnosis. Species of the new genus ( Fig. 7, 8 ) are externally reminiscent of Bitecta but differ in the narrower forewing having only one cluster of androconial scales (between the veins R1 and R2). In the male genital capsule ( Fig. 96 ), Sundabitecta gen. n. differs from Bitecta in the combination of the following features. (1) The vinculum is shorter, narrower, has thicker arms and lacks the medial saccate corema, and the intravincular sclerotisations as well. (2) The valva is short, strongly dilated proximally and tapered distally. (3) The basis valvae is markedly narrower. (4) The lamella centralis is shorter, bears a crest-like pseudoampulla, and is displaced distally being situated within the inner surface of the distal saccular process and forming a complex with it. (5) The juxta is more heavily sclerotised, plate-like and has dorso-lateral processes, whereas in Bitecta , the juxta is similar to Teulisna , frame-like with a membranous ventro-medial section, and is extended dorsad with a caulis. Unlike in Bitecta , the phallus of Sundabitecta gen. n. has a developed carina protruding distad, and the vesica is broader and bears cornuti. In the female genitalia ( Fig. 148 ), Sundabitecta gen. n. differs clearly from Bitecta in the broad and heavily gelatinous ductus bursae (it is membranous with a sclerotised plate in Bitecta ), the globular corpus bursae with a gelatinous posterior section (it is elongate and membranous in Bitecta ), and the very short and conical appendix bursae situated dorso-posteriorly and directed posteriad whereas it is utricular, situated postero-laterally and recurved in Bitecta .

Etymology. The genus name is an aggregate of the geographical name Sunda and the genus-group name Bitecta and refers to the distribution of the new genus in Sundaland. Gender is feminine.

Taxonomic content. The genus currently comprises one valid species: Sundabitecta fasciata (Gaede, 1925) , comb. n. (= Teulisna harmani Holloway, 2001 , syn. n.), and is under revision by Volynkin & Černý (in prep.).

Figures

Figures 1–16. Adults of Lithosiina spp. Depositories of the specimens: 1–4, 11 and 12 in MWM/ZSM; 5–10, 13– 16 in CKC.

Figures 96–99. Male genitalia of Lithosiina spp. Depositories of the specimens dissected: 96 in MfN; 97 in CKC; 98 in MWM/ZSM; 99 in OUMNH.

Figures 145–148. Female genitalia of Lithosiina spp. Depositories of the specimens dissected: 145 and 146 in MWM/ZSM; 147 and 148 in CKC.