Stenoloba jiulianshana Li, Hu & Han, 2025

Li, Jian, Hu, Hua-Lin & Han, Hui-Lin, 2025, Two new species of Stenoloba Staudinger, 1892 from China (Lepidoptera, Noctuidae, Bryophilinae), Zootaxa 5666 (3), pp. 419-427 : 423-424

publication ID	https://doi.org/10.11646/zootaxa.5666.3.6
publication LSID	lsid:zoobank.org:pub:257687EF-9C31-436F-9B1C-9BF830162EAD
DOI	https://doi.org/10.5281/zenodo.16612263
persistent identifier	https://treatment.plazi.org/id/03B887BB-FFAA-FFF1-36EB-FCE60A41F8DA
treatment provided by	Plazi
scientific name	Stenoloba jiulianshana Li, Hu & Han
status	sp. nov.

Treatment

Stenoloba jiulianshana Li, Hu & Han , sp. nov.

( Figs 5, 6 View FIGURES 1–6 , 9 View FIGURES 7–10 , 12 View FIGURES 11–12 )

urn:lsid:zoobank.org:act:EA30A824-CF7D-4AB3-B5E8-3C16969FB9C9

Type-material. Holotype. [ CHINA] ♂, Hengkengshui site, Jiulianshan National Nature Reserve , Longnan County, Prov. Jiangxi, 27 July 2021, T. T. Zhao et al. leg., slide LJ-271-1, coll. NEFU . Paratype. 1♀, same data as for holotype, slide LJ-265-2, coll. NEFU .

Diagnosis. The new species belongs to the S. lichenosa species-group. In contrast to all species in the S. lichenosa species group. S. jiulianshana sp. nov. is very similar to Stenoloba lichenosella Kononenko & Ronkay, 2001 ( Figs 4 View FIGURES 1–6 , 10 View FIGURES 7–10 ). In terms of adult features, the head and thorax of S. jiulianshana sp. nov. are yellowish brown, mixed with grayish white (in S. lichenosella moss-green, mixed brownish grey); forewing ground color yellowish brown, mixed with a little grayish white (in S. lichenosella unicolorous pale, shiny moss-green, without brownish grey irroration); basal line field yellowish green, mixed with a little grayish white (in S. lichenosella moss-green); reniform spot rather small, very thin, yellowish brown (in S. lichenosella relatively large, brown); postmedial line dark brown (in S. lichenosella black brown); subterminal line light beige, with brownish green band at inside (in S. lichenosella gray, with brown at inside).

For male genitalia, uncus apically slight swollen (in S. lichenosella gradually narrowing); valva relatively narrow as a whole, with almost the same width between base and middle (in S. lichenosella relatively wide at base and gradually narrows towards the middle); juxta wide in the lower part, resembling a triangle (in S. lichenosella resembling a diamond); the end of sacculus has a flat, outward-extending and finger shaped protrusion that is strongly sclerotized (in S. lichenosella without). Aedeagus has a larger carinal plate (in S. lichenosella smaller); the inner side of the vesica has a broader cornuti field (in S. lichenosella smaller); vesica without lateral extension (in S. lichenosella inner extension forms a conical diverticulum).

Description. Adult ( Figs 5, 6 View FIGURES 1–6 ). Forewing Wingspan 30 mm in male, female 32 mm. Head and thorax yellowish brown, mixed with grayish white. Abdomen brown and mixed with grayish white. Forewing relatively wide, fan shaped; basal line field yellowish green, mixed with a little grayish white; basal band brown, double; antemedial line brown, double, with a brown dot; costal margin area yellowish brown, mixed with grayish white, with some irregular blackish brown stripes; reniform spot relatively small, brownish yellow, with a slight grayish white around it; postmedial line dark brown and double; subterminal line light beige, diffused, with brownish green band at inside; terminal line is composed of discontinuous blackish brown dots. Hindwing overall brownish ochre. Discal spot indistinct, circular shaped. The basal and inner margin areas rather thin than ground color.

Male genitalia ( Fig. 9 View FIGURES 7–10 ). Uncus short, with a length of 1/6 tegment; tegment narrow, grooved and approximately the same length as the vinculum. Valva narrow, strongly sclerotized, with almost the same width from the base to middle, gradually narrowing towards the proximal end; sacculus apically, outward-extending and finger-like protrusion that is strongly sclerotized; costa slightly protrudes inward. Juxta relatively long and gradually widens at the bottom, resembling a triangle. Aedeagus long tubular, with a strongly sclerotized carinal hook; vesica long and incurved, with a small diverticulum at the top, the dorsal side and its process extend to the basal of vesica, apically deeply sclerotized and small dot shaped; terminal part has a broader cornuti field, the single and stronger sclerotized cornutus on the ventral margin of the terminal part.

Female genitalia. ( Fig. 12 View FIGURES 11–12 ). Papillae anales broadly and conical shaped; apolysis anteriores approximately the same length as apolysis posteriors, and the latter is thicker than the former. Antrum sclerotized; funnel shaped. Ductus bursae long, strongly sclerotized, with membranous ring in joining with antrum. Corpus bursae, ellipsoidal shaped, slightly curved inward on both sides, basal with one appendix bursae, strongly sclerotized.

Bionomics. This species is only known in the type locality, which is in mountainous areas at an altitude of about 480 meters. A pair of male and female specimen was collected in July 2021.

Distribution ( Fig. 13 View FIGURES 13 ). Southeast China (Prov. Jiangxi).

Etymology. The species name refers to its collection site, Jiulianshan National Nature Reserve in Prov. Jiangxi.

Remarks. Stenoloba lichenosa species-group currently includes 4 species: S. lichenosa Kononenko & Ronkay, 2001 , S. lichenosella Kononenko & Ronkay, 2001 , S. aenescens ( Moore, 1888) and S. jiulianshana Li, Hu & Han sp. nov.

Compared to other species in the S. lichenosa species-group, their male genitalia share some typical common features, specifically: uncus short and relatively narrow; tegument narrow and long, approximately the same length as the vinculum; valva has a wider base and gradually narrows from the middle to the cucullus; cucullus has setae and a robust corona; distal costal process protrudes inward in a finger or hill shaped manner. Furthermore, the vesica has a cornuti field and a basal plate of the ductus ejaculatorius.