Cincinasura cyclophora, Volynkin & Černý, 2021

Volynkin, Anton V. & Černý, Karel, 2021, Cincinasura, a new genus for Miltochrista synestramena Hampson (Lepidoptera Erebidae: Arctiinae) with a new species from Indonesia, Zootaxa 4999 (2), pp. 181-189 : 184-189

Cincinasura cyclophora sp. n.

( Figs 5, 6 , 13, 14 , 20 )

Type material. Holotype ( Figs 5 , 13 ): male, “ Indonesia, S Sulawesi, Palopo, Puncak , 850m, 23.–31.XII.1993, leg. Karel Cerny [Černý]”, gen. prep. No.: AV2715 (prepared by Volynkin) ( MWM / ZSM, ex coll. CKC).

Paratypes. INDONESIA: 8 males, 5 females, same data as for the holotype, gen. prep. Nos. : AV6432, AV6433 (males), AV2716, AV6434 (females) (prepared by Volynkin) ( CKC) ; 1 male, 1 female, Puncak, Palopo, 1100m, 30 km from Palopo , Sulawesi, Indonesia , Date : April 5. 2010, Collect. Kenichiro Nakao ( CKC) ; 1 male, South Sulawesi, Puncak, Palopo , 870m, II.1981, leg. Paukstadt ( MWM / ZSM) ; 1 male, 1 female, S Sulawesi, Puncak, Palopo , 2°55´S 120°05´E, 13–14.II.1995, 1000m, leg. Sinyaev & Tarasov, gen. prep. No.: ZSM Arct. 2019-989 (female) ( MWM / ZSM) ; 1 male, C Sulawesi, Mt. Salubaya , 0°45´S 120°00´E, 9–10.II.1995, 1000m, leg. Sinyaev & Tarasov ( MWM / ZSM) ; 1 male, S Sulawesi, Mt. Sampuraga , 2°10´S 120°05´E, 11–12.II.1995, 1400m, leg. Sinyaev & Tarasov, gen. prep. No.: ZSM Arct. 2019-988 (prepared by Volynkin) ( MWM / ZSM) .

Additional material examined: 1 male, [ Indonesia, N Sulawesi] Minahassa, 1920, Coll. P.J. v.d. Bergh Lzn. / Asura cyclophora Rpke n. sp. m # / Typus Holo- Roepke / RMNH. INS 1148655 ( RMNH); 1 female without abdomen, [ Indonesia, N Sulawesi] Minahassa, 1920, Coll. P.J. v.d. Bergh Lzn. / Asura cyclophora n. sp. f # / Typus para- Roepke / RMNH. INS 1148656 ( RMNH) .

Remark. In the collection of RMNH, we found two specimens (a male and a female without abdomen) very similar to the specimens from southern Sulawesi examined. The specimens have Roepke’s red labels ‘Holotypus’ and ‘Paratypus’ respectively and were identified by Roepke as ‘ Asura cyclophora n. sp. ’. However, a description of this species was never published by Roepke and cyclophora is a manuscript name. We use the Roepke’s name for the new species but do not include these undissected ‘type’ specimens to the type series as they originate from the northern part of Sulawesi (Minahassa) and their conspecificity to our specimens requires confirmation by the genitalia structures.

Diagnosis. Cincinasura cyclophora sp. n. differs superficially from C. synestramena in the somewhat wider forewing with somewhat more convex costal margin, the ochreous antenna (it is dark brown in C. synestramena ), the pale yellow body and forewing coloration (deep ochreous yellow in C. synestramena ), the evenly curved inwards antemedial line terminating at the anal wing margin (whereas it is somewhat sinuous medially, strongly curved inwards and reaching the wing base in C. synestramena ), and the absence of longitudinal streaks in the cell in the subbasal and medial areas which are present in C. synestramena . Additionally, in C. cyclophora sp. n., the postmedial longitudinal streaks are shorter than in C. synestramena , the terminal line is interrupted (whereas it is entire in C. synestramena ), and the greyish brown terminal suffusion on the hindwing is more intense. The male genital capsule of C. cyclophora sp. n. differs clearly from that of C. synestramena in the medially strongly convex costa bearing a triangular and apically pointed distal process positioned on its dorsal margin whereas in C. synestramena , the costa is only slightly and evenly curved, and its distal process is wide, swollen and positioned on the inner surface of the valva. In the juxta of C. cyclophora sp. n., the lateral lobes are narrower and have smooth margins, and the medial plate is wider and has a smooth surface whereas the juxta of C. synestramena has wider lateral processes with dentate lateral margins and the narrower medial plate with serrulate surface. The medial costal process of C. cyclophora sp. n. is somewhat larger than in C. synestramena . Additionally, in C. cyclophora sp. n., the distal membranous lobe of the valva is wider than in C. synestramena , the ventro-distal process of the valva is longer and basally thicker, and the saccus is somewhat deeper. Aedeagi of the two species are similar. The vesica of the new species is broader than that of C. synestramena and has a medio-lateral patch of thorn-like cornuti and a ventral diverticulum (both are absent in C. synestramena ). The distal chamber of the vesica of C. cyclophora sp. n. is broader than in C. synestramena and the distal diverticula are more asymmetrical. The female genitalia of C. cyclophora sp. n. differ from those of C. synestramena in the longer and wider postvaginal plate concave dorsad, the posteriorly wider and anteriorly narrower antrum, the broader posterior section of the corpus bursae, the smaller signum bursae, and the somewhat larger appendix bursae. Additionally, in the 7 th sternite of C. cyclophora sp. n., the postero-lateral plate is short and round and the lateral pocket is narrower but somewhat more elongate whereas in C. synestramena , the postero-lateral plate is elongate and the lateral pocket is wider and elliptical.

Description. External morphology of adults. Forewing length 9–9.5 mm in males and 9.5–10.5 mm in females. Antennae ochreous, bipectinate in male and ciliate in female. Body monotonous pale ochreous yellow, thorax with two black spots medio-laterally. Forewing ground color pale ochreous yellow. Forewing pattern black. Subbasal spot small, dot-like. Costa black in subbasal area. Antemedial line concave medially. Medial area with large circular spot and two discal spots, of which inner one larger and comma-like while outer one dot-like. Postmedial line oblique at the costa, rectangular-like curved opposite the cell, connected to medial circular spot sub-posteriorly and running to anal margin posteriorly. Postmedial area with series of longitudinal dashes of different lengths. Terminal line interrupted constituting small spots between veins. Cilia black at apex and brown medially and posteriorly. Hindwing pale ochreous creamy, its terminal area with intense dark grey suffusion at apex and medially; costal area with grey suffusion medially. Cilia pale ochreous creamy. Male genitalia. Uncus long, slender, curved, apically pointed. Tuba analis moderately broad, with thin scaphium. Tegumen shorter than valva, with moderately wide arms. Peniculus present, ca. 1/3 of tegumen length. Vinculum wide, equal in length with tegumen, with U-shaped saccus. Juxta consisting of long and wide trapezoid medial plate with dentate lateral margins and two strongly elongate, narrow and apically tapered lateral processes fused with anellus and wrapping aedeagus ventrally. Valva elongate with almost parallel margins. Transtilla relatively wide, band-like. Costa strongly convex medially, with tuberclelike medial process directed ventrally and triangular and apically pointed distal process directed distally-dorsally. Distal lobe of valva wide but short, rounded. Sacculus narrow, terminating at the base of ventro-distal process of valva. Ventro-distal process laterally flattened, elongate, smoothly curved dorsally, apically pointed. Aedeagus large, moderately narrow, somewhat dilated and curved distally. Vesica broad, sack-like, with main chamber covered with robust spinulose scobination medially and dorsally and bearing a patch of thorn-like cornuti of different sizes medio-laterally. Ventral diverticulum elongated and apically rounded, evenly covered with spinulose scobination. Dorsal diverticulum elongated and apically rounded, with area of weak spinulose scobination inwardly and distally. Distal chamber of vesica scobinated medially and distally, with larger distal diverticulum scobinated basally and membranous distally and evenly scobinated smaller distal diverticulum. Distal plate of vesica ejaculatorius triangular. Female genitalia. Papilla analis broadly trapezoid with rounded corners, setose. Apophyses anteriores and posteriores long and thin, equal in length. Postvaginal plate wide, rectangular with rounded corners, concave dorsad. Ostium bursae wide. Antrum elongate funnel-like, dorso-ventrally flattened, sclerotized. Anterior section of ductus bursae short, narrow, membranous, connected to corpus bursae postero-laterally. Posterior section of corpus bursae gelatinous and rugose. Anterior section of corpus bursae broader and somewhat longer than the posterior section, elliptical, densely covered with weak spinulose scobination and bearing signum postero-laterally. Signum bursae represented by triangular lobe directed inwards the corpus bursae. Appendix bursae relatively short, sacklike, gelatinous, positioned postero-laterally.

Distribution. The species is endemic to Sulawesi Island ( Indonesia).

Etymology. See the remark above.

Figures

FIGURES 1–10. Nudariina spp.: adults: Cincinasura (1–6) and related genera (7–10). 1–4, 7, 9 and 10 – type species of the genera. Depositories of the specimens: 1 and 7 in NHMUK (©The Trustees of NHMUK); 2, 6, 8 and 10 in CKC; 3, 4, 5 and 9 in MWM/ZSM (5 ex CKC).

FIGURES 11–14. Cincinasura spp.: male genitalia. Depositories of the specimens dissected: 11–13 in MWM/ZSM (13 ex CKC); 14 in CKC.

FIGURES 19–24. Nudariina spp.: female genitalia.19, 21, 23 and 24 – type species of the genera. Depositories of the specimens dissected: 19 and 20 in CKC; 21 in RMNH; 22 and 24 in MWM/ZSM; 23 in CAV.