Bellulia clara Han & Kononenko 2021, sp. n.
Creators: name: Han, Hui Lin
name: Kononenko, Vladimir S.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Erebidae
Bellulia
Bellulia clara

description: Bellulia clara sp. n.
(Figs 3, 19)
Type material. Holotype: male, Cambodia, Phnom Samkos Wildlife Sanctuary, 7-8.ii.2015, Y.S. Bae et al., genit. prep. hhl-3728-1, coll. NEFU.
Diagnosis. Superficially B. clara is similar to B. kareni and B. tenebrosa (Figs 1, 2), but can be distinguished by the narrower forewing (in B. kareni and B. tenebrosa the forewing relatively broader); the basal line is distinct, slightly arched (in B. kareni and B. tenebrosa it is rather indistinct, and weakly waved); the antemedial line is smoothly curved (in B. kareni and B. tenebrosa it is waved); postmedial line is very narrow, with a small dark brown patch on the costal area (in B. kareni and B. tenebrosa postmedial line has a large dot in the costal area); the subterminal line is thin (in B. kareni and B. tenebrosa it is broad and more grainy in appearance); the hindwing is lighter than forewing (in B. kareni and B. tenebrosa it is darker than the forewing). In the male genitalia of B. clara (Fig. 19) yuxta is larger than in B. tenebrosa and B. kareni; the ventral part of the tegumen is fused to the fultura superior with a prominent log-like process on each side, left shorter than in B. kareni and B. tenebrosa and broader than in B. kareni.; in right valva, costal process (digitus) is thumb-shaped, prominently extending past the apex of valva (in B. kareni the digitus horn-shaped, protrudes from the medial part of the costa, and extends only slightly bryong the apex of the valva, in B. tenebrosa it is short and straight, cone-shaped, and does not beyong the apex of the valva). Aedeagus broader than in B. tenebrosa and B. kareni.
Description. Adult (Fig. 3). Wingspan 9 mm. Head and thorax yellowish grey, mixed with yellow on patagium, with light white scales on inner margin; abdomen yellowish grey, yellow on terminal part. Forewing light grey; basal line blackish brown, smoothly arched; antemedial line light greyish brown, smoothly curved; median line absent; postmedial line very thin, indistinct, with small dark-brown patch on costal area; subterminal line thin, pale greyish-brown, broad, incurved at R4 and M2; terminal line formed by small blackish-brown dots; fringe light yellowish-grey; basal area brown; subterminal line darker than ground colour; reniform white, small outlined with brown. Hindwing slightly paler than forewing; discal spot tinged with dark, indistinct; outer margin with angle in Cu+A1; fringe greyish-yellow.
Male genitalia (Fig. 19). Tegumen narrow, about 2.5 as long as vinculum; its ventral part fused to fultura superior with a prominent, stick shaped process on each side, slightly swollen and rounded apically, fused on both sides, left one shorter than right. Vinculum rather thicker than tegumen, V-shaped. Saccus short, V-shaped, and narrower than in B. tenebrosa and B. kareni. Juxta eye-shaped, sclerotized, with full circle on the left in the upper middle,. Valva broad, asymmetrical, left one narrower than right; sacculus slightly asymmetrical, left one narrower about 1/2 as long as valva, right one longer than left, both apically rounded; ampullae asymmetrical, right one larger than left, prominently curved ventrally, with heavily setae; process of costa thumb-shaped, weakly curved, extending beyong apex of valva. Aedeagus with coecum about 1/5 as long as aedeagus; in basal third straight and in apical two-thirds barely curved, gradually tapered backward, straight at apex, swollen at ductus ejaculatorius.
Female genitalia. Female unknown.
Etymology. The species name derives from the Latin “ clara ” (bright) and refers to the lighter colouration of the adult in the B. kareni species-group.
Distribution. Cambodia (Phnom Samkos Wildlife Sanctuary). The species was collected in the tropical rainforest zone.
description: Published as part of Han, Hui Lin & Kononenko, Vladimir S., 2021, Six new species of the genus Bellulia Fibiger, 2008 from China and Cambodia (Lepidoptera, Erebidae, Hypenodinae). Taxonomic study of Micronoctuini Contribution III, pp. 117-130 in Zootaxa 4938 (1) on pages 120-122, DOI: 10.11646/zootaxa.4938.1.6, http://zenodo.org/record/4561447