Hiroshiinoueana curiosissima ( Razowski, 2009 ) Pinkaew & Muadsub, 2021

Pinkaew, Nantasak & Muadsub, Sopita, 2021, First record of the genus Hiroshiinoueana Kawabe, 1978 (Lepidoptera: Tortricidae: Olethreutinae), with a new record and a new species from Thailand, Zootaxa 5023 (3), pp. 442-450 : 443-444

Hiroshiinoueana curiosissima ( Razowski, 2009) comb. nov.

( Figs. 1–4 , 9–14 , 18–19 )

Atsusina curiosissima Razowski, 2009 . Polish Journal of Entomology 78: 15–32.

Specimens examined: 4♂, 3♀. THAILAND. Uthai Thani Prov., Huai Kha Khaeng W.S., 15 o 33ʹ11ʺN, 99 o 17ʹ45ʺE, alt. 250 m; 12 Oct 2020; np13607 (♂, genitalia slide NP3970); np13537 (♀); 17 Dec 2020; np13670 (♀, genitalia slide NP3971); np13671 (♀, genitalia slide NP3972); np13676 (♂), 15 o 36ʹ32ʺN, 99 o 18ʹ58ʺE, alt. 195 m; 14 Oct 2020; np13536 (♂, genitalia slide NP3968); np13606 (♂, genitalia slide NP3969); Pinkaew et al. leg.; KKIC .

Diagnosis. Hiroshiinoueana curiosissima differs from all other species in the genus by the distinct unequal valvae, conspicuous small and short of right cucullus, absence of a tuft of long bristles on each valva, and presence of two clusters of moderately long curve spines below the left cucullus apex.

Redescription. Head ( Figs. 2, 4 ): Lower frons and upper frons light brown, vertex light brown mixed with brown, mostly scales iridescent when angled to light; labial palpi porrect, first segment yellowish white, second segment dilated to widened apex, yellowish white at base, slightly darker to light brown at apex, with three dark brown spots dorsobasally, medially, and apicoventrally respectively, third segment light brown, paler at apex; antenna brown, reaching middle of forewing.

Thorax: Pronotal collar and tegulae brown, with greyish white tips, some scales iridescent when angled to light, mesonotum brown with yellowish tips, median with transverse band of light brown scales with white tips, posterior crest dark brown with yellowish tips. Forewing broad subrectangular, wingspan 12.1–12.6 mm in males (n = 4) ( Fig. 1 ), 12.0–13.2 mm in females (n = 3) ( Fig. 3 ), costa evenly curve; termen round; costal strigulae well developed, pinkish separated by blackish streaks; ground color silvery greyish brown, basal 1/3 with indistinct, irregular patch, brown to dark brown, broken by ground color and edged with pinkish brown scales, medially with large, indistinct irregular transverse patch, extending slightly oblique from costa to dorsum, brown mixed with dark brown, broken by ground color and edged with pinkish brown scales, inner margin extending from near middle of costa slightly oblique to middle of dorsum, outer margin extending from apical 1/4 of costa slightly oblique to tornus, near middle of patch with a small whitish grey X-shaped mark, with distinct oblique dark brown strip, edged with pinkish brown scales, extending oblique from apical 1/4 of costa to middle of termen, wing apex with small dark brown spot; under side greyish brown with white spots on costa. Hindwing ( Figs. 1, 3 ) subrectangular, brown slightly paler to wing base; underside greyish brown.

Abdomen: Tergum II with two small pits on anterolateral corners ( Fig. 18 ), tergum VIII with enlarged posterior margin, rounded lobe ( Fig. 19 ). Male genitalia ( Figs.9–12 ).Tegumen subtriangular, rather narrow; uncus tubular lobe, rather short, slightly dilated apex, sparsely setose basally, apex with dense setae ( Fig. 10 ); socii and gnathos indistinct; vinculum rather narrow; juxta subtriangular; caulis moderately long, wide cone-shaped, anellus surrounding apical 2/3 of phallus; phallus capsule-shaped, moderately long, widened medially, vesica with dense cornuti sockets ( Fig. 12 ); valvae asymmetry; left valva larger than right, left valva elongate ovate, with distinct longitudinal fold from base to near apex, beneath with a large concave, dorsal margin fold downward over ventral margin, basal half with a large suboval-shaped patch of dense short spines mixed with moderately long spines, pointing inward, covered mostly area of sacculus except ventrobasally, inner margin of lobe round protruding inward, sacculus densely setose basally, cucullus elongate dome-shaped, rounded apex, moderately dense setae, with a group of eight moderately long, strong and curve spines beneath apex, beneath with a smaller group of two rather short, slightly curve spines ( Fig. 11 ); right valva quite smaller than left, subtriangular, basal 2/3 covered with subcircular lobe, inner margin combined with basal excavation edge protruding inwardly, distinctly folded apicolaterally, lobe covered with dense of short to moderately long stout spines, mostly pointing inward, sacculus with moderately dense setae ventrobasally, cucullus smaller than sacculus, elongate subtriangular lobe, stout apex, moderately dense setae. Female genitalia ( Figs. 13–14 ). Papillae anales densely setose; tergum VIII smooth, with sparse setae on subtriangular extension; sternum VII weakly sclerotized, with dense scale sockets, especially along very slightly concave posterior margin; sterigma strongly sclerotized, forming large long and curve tube with smooth surface, anterior half behind sternum VII with rather parallel margins, posterior half protruding upward over posterior margin of sternum VII, narrowed to posterior end ( Fig. 13 ); colliculum sclerotized, long about half length of ductus bursae; ductus bursae rather narrow posterior half, anterior half widened to corpus bursae; ductus seminalis arising from anterior 1/3 of ductus bursae; corpus bursae ovate, granulate throughout, signum ( Fig. 14 ) a scobinate patch, with distinct two large, tubular teeth pointing ventrally and two larger, rounded teeth pointing laterally.

Distribution. Vietnam and Thailand. New record to Thailand.

Remarks. Hiroshiinoueana curiosissima ( Razowski, 2009) is superficailly similar to Gatesclarkeana idia Diakonoff, 1973 and Ukamenia thailandica Pinkaew & Muadsub, 2020 especially wing pattern and coloration of forewing. It can be distinguished by rather rounded termen and whitish grey X-shaped mark in forewing, hindwing without modified anal margin, and hind tibia without tuft of hair pencils. In contrast, G. idia and U. thailandica has straight forewing termen, middle of forewing with a rounded white spot in G. idia but absent in U. thailandica , anal marginal fold in hindwing and distinct hair pencils in hind tibia are also present. Although forewing pattern of H. curiosissima looks similar to G. idia and U. thailandica but it can be distinguished from the two latter by a large spiny lobe at base of valva (shared character of the genus Hiroshiinoueana ) but it is small in G. idia and not present in U. thailandica . Furthermore, H. curiosissima lack spinules on the outer surface of sterigma in female genitalia but it is present in G. idia .

Figures

FIGURES 1–6. Wing pattern and head of Hiroshiinoueana spp. 1–2, H. curiossissima (male, np13607); 3–4, H. curiossissima (female, np13670); 5–6, H. partita sp. nov. (holotype, male, np4798), scale bars = 2 mm.

FIGURES 9–12. Male genitalia of Hiroshiinoueana curiossissima (NP3970). 9, Male genital capsule; 10, Uncus; 11, Groups of spines below left valval apex; 12, Cornuti sockets.

FIGURES 13–14. Female genitalia of Hiroshiinoueana curiossissima (NP3971). 13, Female genital capsule; 14, Signum.

FIGURES 18–21. Abdomen of male of Hiroshiinoueana spp. 18–19: H. curiossissima (NP3970), 18, Pits on anterolateral corner of tergum II. 19, Lobe on posterior margin of tergum VIII; 20–21: H. partita sp. nov. (holotype, NP1514), 20, Pits on anterolateral corner of tergum II; 21, Lobe on posterior margin of tergum VIII.