Huangilene, a new genus for the Miltochrista alikangiae (Strand, 1917) species-group, with descriptions of three new species from Indochina, continental China and Taiwan (Lepidoptera: Erebidae: Arctiinae: Lithosiini)
Author
Volynkin, Anton V.
Altai State University, Lenina Av. 61, RF- 656049, Barnaul, Russia. & ational Research Tomsk State University, Lenina Av., 36, RF- 634050, Tomsk, Russia
Author
Černý, Karel
0000-0001-7207-2255
Tiergartenstrasse 27, A- 6020 Innsbruck, Austria. natura. cerny @ aon. at; https: // orcid. org / 0000 - 0001 - 7207 - 2255 Corresponding author
natura.cerny@aon.at
text
Zootaxa
2020
2020-10-30
4869
1
91
111
journal article
8843
10.11646/zootaxa.4869.1.4
7bde971d-69fe-4492-acf1-68fc1d57660c
1175-5326
4418380
C38531DD-B13A-4D73-8084-30276B30095D
Genus
Huangilene
Volynkin & Černý
,
gen. n.
Type
species:
Lyclene kepica
Dubatolov & Bucsek, 2013
.
Diagnosis
. Small moths with a typical ‘miltochristoid’ forewing pattern. Body and wings coloration is yellow, forewing markings are blackish. Externally members of the new genus resemble
Miltochrista obsoleta
(
Figs 30, 31
,
52
,
64
), but can be distinguished by the less interrupted antemedial and medial transverse lines and the forewing discal spot situated closer to the costal margin. The male genitalia of
Huangilene
gen. n.
are characterized by the following autapomorphic features that clearly distinguish them from those of the genus
Miltochrista
(
Figs 34
,
54
,
65
): (1) the anellus with two trigonal sclerotized lobes fused to each other basally and bearing series of denticles on their distal margins; (2) the presence of a lobe-like medial costal process, which is broad with a dentate ventral margin in the
H. alikangiae
species-group and bilobate with the distal lobe serrulate margin in the
H. apoklinousa
sp. n.
species-group; (3) the distal section of costa present as a short, narrow and somewhat twisted lobe fused with the distal membranous lobe of valva. In addition, the male genitalia of the new genus are characterized by the large distal membranous lobe of valva being well-separated from the distal saccular process; and the aedeagus vesica curved dorsally and having a large medial ventral diverticulum bearing a robust spine-like cornutus, and the absence of a distal plate of vesica (= basal plate of vesica ejaculatorius). Also, in the
H. alikangiae
species-group the distal section of aedeagus is rugose with a long sclerotized string-like dentate dorsal carinal process protruding to the base of the vesica ejaculatorius, and a broad ventral area of numerous denticles protruding to the subbasal diverticulum, but in the
H. apoklinousa
sp. n.
species-group the distal section of aedeagus is evenly serrulate without protrusions to the vesica. The female genitalia of
Huangilene
gen. n.
are similar to those of
Miltochrista
, but differ by the area of numerous small spinules at the junction of the ductus bursae with the corpus bursae being protruding to the anterior section of the ductus bursae.
Remark
. Species of the genus vary in their size and the clarity of forewing pattern, but the genitalia structures of various populations display no significant intraspecific variability: in males the width of valva (especially that of its distal lobe) may vary. However, the vesica structure is very stable within all species and is a reliable specific character.
Description
.
External morphology of adults
(
Figs 1–29
). Forewing length
7–11 mm
in males and 9.5–
14 mm
in females. Male antenna ciliate, female antenna filiform. Body and wing coloration yellow. Thorax with two black dots. Forewing pattern elements thin, blackish. Subbasal spot. Subbasal line wavy, interrupted into several spots. Antemedial line strongly wavy, interrupted into a series of spots. Medial line sinuate or nearly straight, interrupted into a series of spots or continuous. Postmedial line S-like curved and irregularly dentate. Subterminal line wavy, interrupted into several spots. Terminal line absent. Discal spot as a dot. Cilia pure yellow. Hindwing pale yellowish, sometimes with slight dark greyish suffusion at apex.
Male genitalia
(
Figs 35–51
). Uncus elongate, thin, smoothly curved, apically pointed, slightly broadened medially and basally. Tuba analis moderately broad, scaphium thin, moderately sclerotized. Tegumen short and moderately broad. Anellus with two trigonal sclerotized lobes fused to each other basally and bearing series of denticles on their distal margins. Juxta broadly trapezoid with rounded corners. Vinculum well-sclerotized, U-shaped. Valva elongate and narrow. Costa with lobe-like medial process, which is broad with a dentate ventral margin (the
H. alikangiae
species-group) or bilobate with the distal lobe serrulate margin (the
H. apoklinousa
sp. n.
species-group). Distal section of costa present as short, narrow and somewhat twisted lobe fused with distal membranous lobe of valva. Distal membranous lobe of valva large, wellseparated from the distal saccular process. Sacculus narrow, its distal process elongate, spur-like, slightly curved dorsally. Aedeagus short and moderately broad, ventral part of carina longitudinally rugose and weakly dentate, this dentation continues to the basal section of vesica. Dorsal part of carina as weakly sclerotized cord continuing to the basal section of vesica. Vesica curved dorsally, with large medial ventral diverticulum bearing a robust spine-like cornutus and two or three small medial diverticula. Distal plate of vesica absent.
Female genitalia
(
Figs 55–63
). Papillae anales broadly trapezoid with rounded corners, weakly setose. Apophyses long and thin, apophyses anteriores equal in length to apophyses posteriores or slightly shorter. Ostium bursae broad. Antrum broad, granulated, with rugose thick-walled membranous ostial margin. Ductus bursae short, dorso-ventrally flattened, moderately sclerotized. Corpus bursae sack-like, weakly spinulose scobinated, with area of numerous small spinules at junction with ductus bursae protruding to anterior section of ductus bursae. Appendix bursae conical, membranous, situated postero-laterally, directed posteriorly.
Distribution
. The genus is widespread from
Nepal
and northeastern
India
through
Myanmar
and southwest and east
China
to Indochina except Malay Peninsula.
Etymology
. The generic name is a combination of the surname Huang and the genus group name
Lyclene
. The genus is dedicated to Mr Huang Si-yao (Guangzhou,
China
), the authors’ colleague and an expert in Chinese Lithosiini.