Eudemopsis squamapanna Pinkaew & Muadsub, 2024

Pinkaew, Nantasak, Muadsub, Sopita & Jaikla, Soraya, 2024, A new species of Eudemopsis Falkovitsh (Lepidoptera: Tortricidae: Olethreutinae: Olethreutini) from Thailand and Laos, with the proposed synonymy of Fansipaniana Razowski, Zootaxa 5536 (2), pp. 336-344 : 337-343

Eudemopsis squamapanna Pinkaew & Muadsub , sp. nov.

LSID: urn:lsid:zoobank.org:act:7CC6C660-DC9B-4D84-A46B-6CA7B9C6250F

( Figs. 1–13 )

Type Material. Holotype: ♂, [ THAILAND]: Nakhon Ratchasima Prov., Khao Yai N.P., 14°25ˊ55˝N, 101°24ˊ05˝E, alt. 700 m, 4–7 Jan. 2017, N. Pinkaew et al. leg., np11115 (genitalia slide NP3301). Deposited in KKIC . Paratypes: 18♂, 1♀, [ THAILAND] Bueng Kan Prov., Bueng Khong Long Non-Hunting Area, 18°01ˊ20˝N, 104°00ˊ52˝E, alt. 170 m, 6 Apr. 2023, np13905 (♂, genitalia slide NP4169); same collection data as preceding, 19 Sep. 2023, np13910 (♂), np13911 (♂), np13912 (♂), np13913 (♂). Nakhon Ratchasima Prov., same collection data as holotype, 14 Jan. 2016, np9802 (♂, genitalia slide NP4167); same collection data as holotype, 7 Jul. 2016, np8887 (♂, genitalia slide NP4166), np7971 (♀, genitalia slide NP3302, wing slide). Nakhon Nayok Prov., Khao Yai N.P., 14°23ˊ56˝N, 101°22ˊ16˝E, alt. 786 m, 13 Aug. 2010, np4656 (♂, genitalia slide NP1503); 14°26ˊ18˝N, 101°22ˊ24˝E, alt. 740 m, 21–22 Oct. 2017, np11279 (♂). Sa Kaeo Prov., Pang Sida N.P., 14°02ˊ25˝N, 102°15ˊ56˝E, alt. 310 m, 18 Oct. 2017, np9811 (♂, wing slide); same collection data as preceding, 26 Apr. 2017, np10020 (♂), np10034 (♂); same collection data as preceding, 21 Jun. 2017, np10458 (♂), np10471 (♂); same collection data as preceding, 18 Oct. 2017, np11175 (♂); 14°00ˊ54˝N, 101°11ˊ45˝E, alt. 260 m, 24 Apr. 2017, np9906 (♂). Chanthaburi Prov., Khao Glaur, 13°05ˊ49˝N, 102°10ˊ21˝E, alt. 166 m, 15 May 2009, np3107 (♂, genitalia slide NP2976), np3105 (♂). Trat Prov., Trat Agroforestry Research Station , 12°23ˊ34˝N, 102°40ˊ00˝E, alt. 46 m, 16–19 Sep. 2010. These specimens were collected by N. Pinkaew et al . 1♂, LAOS: Vientiane Prov., Phou Khao Khouay N.P., 18°20ˊ60˝N, 102°47ˊ92˝E, alt. 785 m, 26 Jan. 2017, P. Phewphanh, leg., pp00393 (♂, genitalia slide PP00207). All specimens are deposited in KKIC .

Diagnosis. The forewing pattern of E. squamapanna is similar to that of Eudemopsis tamdaoensis ( Heppner & Bae, 2016) comb. nov., but it can be recognized by the brown mixed with dark brown scales on the frons, labial palp, tegulae and mesonotum, whereas the scales are greyish brown in E. tamdaoensis ( Heppner & Bae, 2016) comb. nov. Male genitalia of this new species include a large patch of modified short scales and a large membranous lobe of very long modified scales on the anterior surface of the valva, which distinguish it from other Eudemopsis species. Eudemopsis fansipana ( Razowski, 2009) comb. nov. has only a patch of modified short scales, whereas E. tamdaoensis ( Heppner & Bae, 2016) comb. nov. has only very long modified scales.

Description. Head ( Figs. 3–4 ): Lower frons brown mixed with dark purple, upper frons and vertex brown to dark brown mixed with dark purple; antenna light brown; labial palpus porrect, first segment dark purple, second segment curved upward, brown mixed with purple, with dark brown along ventral margin, apical segment short, light brown.

Thorax: Pronotal collar dark purple; mesonotum light brown mixed with purple marks mediolaterally and posterolaterally; tegulae light brown with purple mixed with dark brown basal 1/3; posterior crest light brown. Forewing subtriangular, length 5.7–6.9 mm in males (n = 20) ( Fig. 1 ), 6.6 mm in female (n = 1) ( Fig. 2 ); costal margin evenly curved, with a rather small pterostigma on costa between Sc and R 1 in both male and female (distinct after removed scales) ( Figs. 5–6 ); termen round, base of M 2 close to M 3 than M 1, M 3 curved downward basally, CuA 1 curved downward medially, distal end of M 1, M 2, M 3, and CuA 1 equidistant; costal strigulae brown, separated by dark brown streaks, strigulae 1– 6 distinct, strigulae 7 –9 indistinct; ground color yellowish brown to light brown, with scattered brown to dark brown spots; basal patch between wing base and strigula 1, extending downward as irregular band to near middle of dorsum, brown mixed with dark brown; subbasal fascia between strigulae 2 and 3, narrowed, extending from costa curve to dorsum, brown mixed with dark brown; median fascia between strigulae 4 and 5, moderately widened band, extending from costa beyond to middle of wing, distinct on costa, slightly narrowed beyond to middle of wing; postmedian fascia narrow, sinuate, extending from costa to near tornus, brown mixed with dark brown; preterminal fascia narrow, sinuate, extending slightly obliquely from costa to termen at M 3, dark brown, with a short, longitudinal, narrowed band fused with postmedian and preterminal fascia at M 2, apical 1/3 with a large, subcircular patch, extending from costa to M 2, pale brown, more bright anteriorly; tornal patch, large, subelliptic, between M 2 to tornus, light brown, slightly paler anteriorly, beyond preterminal fascia with an oblique band, moderately wide, extending from costa to termen between M 2 and M 3; underside with pale trace of upper side markings; fringe scales dark brown, except light brown between CuA 1 to tornus. Hindwing subtriangular, costal margin in male more convex than in female ( Figs. 5–6 ), greyish brown, slightly paler to wing base, wing apex with a distinct mark between costa and Sc+R 1, pale brown, fringe scales greyish brown, slightly paler to anal angle, except brown at apex; underside light brown, slightly paler to wing base, with large longitudinal patch extending from wing base to apex and from costa to M 1 yellowish white with patch of light purple scales median 1/3.

Abdomen ( Fig. 7 ): Segment IV with two small membranous lobes anterolaterally, with dense scale sockets. Membrane beyond abdominal segment VIII enlarged. Male genitalia ( Figs. 8–12 ) with tegumen moderately broad, oblong, bilobed apex, with dense scale sockets laterally, apodeme of muscle m4 rather small, subtriangular lobe; uncus ovate, rather small, with sparse setae; socii reduced; gnathos arising from near lateral midpoint of tegumen, completely fused medially as strongly sclerotized band, densely microtrichiate, dorsomedially with an extended sclerotized, rather narrow, tubular median prominence to tuba analis, long, slightly narrowed to apex, densely covered with microtrichia; vinculum moderately wide; juxta subtriangular, rather small; caulis moderately long; anellus surrounding basal 1/2 of phallus, with two groups of dense microtrichia laterally; phallus subtubular, rather short and moderately wide, slightly narrowed towards apex; cornuti absent; valva simple, without neck, dorsal margin rather straight, basal 2/3 broadened, margins rather parallel, apical 1/3 with ventral margin slightly narrowed towards apex, apex rather wide and round, posterior surface with a small group of dense setae basally, medially with a widened group of short, sparsely setose, apical 2/3 clothed with short setae, ventromedially with a cluster of moderately dense and long, strong spiniform setae, anterior surface at basal 1/4 with a large membranous lobe of dense, very long setae ( Figs. 10B–12B ), white in pinned specimens ( Fig. 10B ), apical 3/4 with a large patch of very dense, rather short, modified scales ( Figs. 10A–12A ), dark brown in pinned specimens ( Fig. 10A ). Female genitalia ( Fig. 13 ) with papillae anales moderately broad, densely setose; tergum VIII moderately sclerotized, without scale socket, subtriangular lateral extension densely microtrichiate; sternum VII moderately sclerotized, with dense scale sockets, more dense posteriorly, posterior margin shallowly concave, slightly sinuate; ostium bursae elongate, beyond posterior margin of sternum VII, surrounded with large, sclerotized, subcircular sterigma, covered with dense microtrichia, posteromedially with a moderately large patch, densely microtrichiate; ductus bursae 1/2 length of corpus bursae, anterior 1/3 narrowed, posterior 2/3 widened, colliculum ill-defined; ductus seminalis arising from anterior 1/3 of ductus bursae; corpus bursae large, ovate, with two moderately large, curved, blade-shaped signa.

Distribution. Thailand (Bueng Kan, Nakhon Ratchasima, Nakhon Nayok, Sa Kaeo, Chanthaburi, and Trat Provinces) and Laos (Vientiane Province).

Etymology. The specific epithet squamapanna comes from two Latinized words, squama = scale, and panna = patch, and refers to the large patch of short scales on the anterior surface of the valva.

Figures

FIGURE 7. Male abdomen of Eudemopsis squamapanna sp. nov. with two small lobes of dense scale sockets on the abdominal segment IV anterolaterally (paratype, NP4167). Scale bars = 1 mm.

FIGURE 8. Morphological features of male genitalia of Eudemopsis squamapanna sp. nov. (holotype). Scale bars = 0.5 mm.

FIGURE 9. Extended part of uncus, tuba analis, gnathos, phallus and anellus in male genitalia of Eudemopsis squamapanna sp. nov. (holotype). Scale bars = 0.5 mm.

FIGURES 10–12. Modified scales on the anterior surface on male valva of Eudemopsis squamapanna sp. nov. 10. Exposed valva from the abdominal segment VIII (pinned specimen, paratype, np13911); 11. Valva after dyed in EosinY (holotype); 12. Mounted valva in Euparal (holotype) (A. Modified short scales B. Modified very long scales on membranous lobe).

FIGURE 13. Morphological features of female genitalia of Eudemopsis squamapanna sp. nov. (paratype, NP3302). Scale bars = 0.5 mm.

FIGURES 1–2. Wing pattern of Eudemopsis squamapanna sp. nov. 1. Male (holotype); 2. Female (paratype, np7971). Scale bars = 2 mm.

FIGURES 3–4. Head of Eudemopsis squamapanna sp. nov. 3. Male (holotype); 4. Female(paratype, np7971).

FIGURES 5–6. Wing venation on the right wings of Eudemopsis squamapanna sp. nov. 5. Male (paratype, np6618); 6. Female (paratype, np7971).