Diduga dubatolovi Bayarsaikhan & Bae, 2018

Bayarsaikhan, Ulziijargal, Lee, Dong ˗ June & Bae, Yang ˗ Seop, 2018, Three new species of Diduga Moore, [1887] (Lepidoptera, Erebidae, Arctiinae) from Cambodia, Zootaxa 4514 (3), pp. 411-424 : 415-416

Diduga dubatolovi Bayarsaikhan & Bae , n. sp.

( Figs. 2 , 9 , 20 )

Type materials. Holotype: 1 ♂, Cambodia, Central Cardamom , Koh Kong Prov. (N11˚58′47″, E103˚22′22″), 29.VI.2011 (YS Bae, YD Ju, U Bayarsaikhan, HJ Lee), Gen. Slide No. INU˗1775C. Paratypes. (33 ♂, 10 ♀) Cambodia : 15 ♂, 7 ♀, Central Cardamom, Koh Kong Prov. (N11˚56′83″, E103˚23′38″), 28˗29. VI.2011 (YS Bae, XV Le, U Bayarsaikhan, BS Park, MS Kim, KW Kim), Gen. Slide No. INU˗1192C, 1193C, 1746C, 1771C, 1772C, 1774C, 1995C, 1996C, 1997C, 2000C, 10005C, NIBR ˗1773C ; 2 ♂, Seima, Mondulkiri Prov. (N12˚14′56.80″, E107˚03′17.10″), 15.VIII.2013 (YS Bae, YD Ju, BS Park, SM Na, JW Kim) ; 1 ♂, Samkos, Koh Kong Prov. (N12˚12′41″, E102˚54′37″), 17.II.2012 (YS Bae, YD Ju, HJ Lee) ; 9 ♂, 3 ♀, Samkos, Koh Kong Prov. (N12˚12′40.0″, E102˚52′13.0″, Alt. : 641m, 841m), 23˗24.XII.2014 (YS Bae, YD Ju, MJ Qi, U Bayarsaikhan, BS Park, SM Na, JW Kim, DJ Lee), Gen. Slide No. INU˗1976C, 10001C, 10003C, 10004C ; 1 ♂, Bokor, Kampot Prov. (N10˚39′30.73″, E104˚03′03.74″), 4.II.2014 (YS Bae, KS Oh, YD Ju, MJ Qi, BS Park, SM Na, JW Kim, DJ Lee) ; 1 ♂, Bokor, Kampot Prov. (N10˚39′11″, E104˚03′11″), 27.XII.2014 (YS Bae, YD Ju, MJ Qi, U Bayarsaikhan, BS Park, SM Na, JW Kim, DJ Lee) ; 1 ♂, Kirirom, Koh Kong Prov. (N11˚19′14.77″, E104˚02′11.67″), 6.II.2014 (YS Bae, KS Oh, YD Ju, MJ Qi, BS Park, SM Na, JW Kim, DJ Lee) ; 1 ♂, Pramaoy, Pursat Prov. (N12˚12′38.72″, E102˚53′54.76″), 8.II.2014 (YS Bae, KS Oh, YD Ju, MJ Qi, BS Park, SM Na, JW Kim, DJ Lee), Gen. Slide No. INU˗1776A ; 2 ♂, Samkos, Koh Kong Prov. (N12˚12′12.6″, E102˚52′10.8″, Alt. : 647m), 7. II.2015 (YS Bae, YD Ju, BS Park, SM Na, JW Kim, DJ Lee) .

Diagnosis. By the wing pattern, the new species is similar to Diduga spinosusa Bucsek, 2012 ( Bucsek 2012: 24, pl. 4: 51, gen. Mal022), but the male genitalia structures of both species are significantly different: valva with two asymmetrical processes in upper and lower angle of apex and a row of long spines in towards apex on dorsal side ( Figs. 9a ˗b). In D. spinosusa , valva with one large process in upper angle of apex and a row of long spines on lower angle of apex ( Bucsek 2012: gen. fig. Mal022).

Description. Adult ( Figs. 2a, 2b ). Length of forewing 5˗7 mm in male and female. Head, patagium and tegula deep yellow. Thorax dark brown. Forewing ground color dark brown, with broad, deep yellow costal margin, which hind border broadly dentate; with row of small, dark brown dots or patches from basal of costa to tornus; terminal line broadly deep yellow, with dentate inside border; cilia deep yellow. Hindwing ground color light brown; terminal line pale ocherous; cilia light brown. Abdomen brown, with deep yellow tuft.

Male genitalia ( Figs. 9a ˗b). Uncus slender, waved, with a small apical spine. Tegumen triangular, weakly sclerotized. Valva rectangular, with a row of strongly sclerotized, long (1.5 times longer than apical process of valva) spines in towards apex on the dorsal side and two sclerotized, asymmetrical processes in upper and lower angle of apex: in left valva, process of lower angle stout, bent on apical half, almost same length with uncus, with a thin apical spine; process of upper angle slender, recurved near proximal end, covered with small spines in all of length; in right valva, process of lower angle stout, slightly excavate, with a long (same length with process of upper angle), waved spine in before angle; process of upper angle stout, slightly waved, with four apical spur, what spurs formed “X”˗shape. Juxta weakly sclerotized, triangular. Saccus “U”˗shaped, about four times shorter than uncus. Aedeagus slender, slightly waved in apical half and vesica with one stout, spine˗shaped cornutus and scobinated plate.

Female genitalia ( Figs. 20a, 20b ). Papillae anales weakly covered with setae. Ductus bursae narrow, tube˗shaped, slightly waved, weakly sclerotized whole of length, with a strongly sclerotized aloe leaf˗shaped plate ( Fig. 20b ) in cervix of bursae, it margin spines large to small size. Corpus bursae ovoid, membranous, without signum.

Distribution. Cambodia (Kampot, Koh Kong, Mondulkiri, Pursat provinces).

Etymology. The species name is dedicated to Dr. Vladimir V. Dubatolov, Arctiinae specialist from Novosibirsk, Russia.

Figures

FIGURE 9. Male genitalia of Diduga dubatolovi n. sp. from Cambodia. 9a. Valva without spines (holotype, INU˗1775C). 9b. Valva with spines (paratype, INU˗1742C). Scale bar = 0.5 mm.

FIGURES 1–6. Adults of genus Diduga spp. from Cambodia. 1a. D. albicosta, male (INU˗1742C). 1b. ditto, female (INU˗1998C). 2a. D. dubatolovi n. sp., male (holotype, INU˗1775C). 2b. ditto, female (paratype, INU˗1193C). 3a. D. kohkongensis n. sp., male (holotype, INU˗1412C). 3b. ditto n. sp., female (paratype, INU˗1743C). 4. D. bispinosa n. sp., male (holotype, INU˗1415C). 5. D. barlowi, male (INU˗1410C). 6. D. amoenusa, male (INU˗1411C).

FIGURES 17–21. Female genitalia of genus Diduga spp. from Cambodia. 17. D. albicosta (INU˗1998C). 18. D. alternota (INU˗1416C). 19. D. annulata (INU˗1745C). 20a. D. dubatolovi n. sp. (paratype, INU˗10005C). 20b. ditto, cervix of bursae (paratype, INU˗1997C). 21. D. kohkongensis n. sp. (paratype, INU˗1743C).