Metendothenia ordospina Jirasuttayaporn and Pinkaew, 2018

Jirasuttayaporn, Panaka, Pitaktunsakul, Piyaporn & Pinkaew, Nantasak, 2018, One new species of Baburia Koçak, 1981 and one of Metendothenia Diakonoff, 1973 (Lepidoptera: Tortricidae: Olethreutinae) from Thailand, Zootaxa 4438 (1), pp. 159-166 : 161-166

Metendothenia ordospina Jirasuttayaporn and Pinkaew , n.sp.

( Figs. 3–4 , 6–8 , 11 , 15–16 , 19–21 )

Diagnosis. Metendothenia ordospina is most similar to M. fidelis Diakonoff in wing shape and pattern. However, the male genitalia of M. ordospina differ from those of M. fidelis in having the apex of the cucullus more truncate, the base of the cucullus with a distinct row of longer spiniform setae, and the right sacculus with a smaller group of

bristles medially. In contrast, M. fidelis has a rounded apex of the cucullus, the base of the cucullus has a short spiniform setae, and the right sacculus has a larger group of bristles medially.

Description. Head ( Fig. 6 ): Lower frons cream, upper frons pale brown, vertex pale brown mixed with blackish brown, labial palpi porrect, first segment cream mixed with pale brown, second segment pale brown mixed with brown, with dark brown patch medially, third segment pale brown; antenna brown, reaching to middle of forewing. Thorax: Pronotal collar, mesonotum, posterior crest pale brown with narrow, dark brown transverse band, tegulae pale brown, with basal 1/3 dark brown; hindtibia with long hair pencils, basally dark brown, remainder cream ( Fig. 11 ). Forewing subrectangular, length 7.0– 7.5 mm in male ( Fig. 3 ) (n = 8), 6.5–7.0 mm in female ( Fig. 4 ) (n = 3); costal strigulae well developed, whitish marks separated by dark brown, some pairs of strigulae divided by blackish streaks; ground color pale brown, basally 0.4 of wing with irregular, broken basal patch, brown mixed with dark brown, present as longitudinal stripe below costa, crescent-shaped patch ventrobasally, subtriangular mark on dorsum, surrounded by diffuse, sinuate striae, brown to dark brown; median patch large, apically divided into three wedge-shaped parts, blackish brown, pretornal patch rounded, confluent with outer portion of median fascia, brown mixed with dark brown, with dorsum slightly sinuate apically, outer margin with triangular spot near middle, angled towards costa, apical 1/4 with elongate, triangular mark, brown mixed with dark brown, extending from termen between M2 and CuA1 angled towards costa, and a thin line between R5 on termen and R3 on costa, wing apex with dark brown spot; underside grayish brown, with cream strigulae along costal margin. Hindwing subtriangular, brown, outer margin sinuate, widely concave near anal margin; anal margin modified, long, thickened into rolled tube of scent producing structures ( Figs. 7–8 ); underside gray. Abdomen: Male genitalia ( Figs. 15–16 ) with tegumen subrectangular, with large, rounded projecting shoulders; uncus moderately long, widest at base, slightly tapered to apex, moderately dense, short setae, except apex with dense bristles, curved ventrally; socii twice as long as uncus, band shaped, apices rounded, with moderately dense setae; gnathos a weakly sclerotized, widened band; vinculum moderately wide; juxta subrectangular; caulis very short, anellus wide, cup-shaped; phallus moderately long, basal half swollen, apical half concave ventrally, truncated apically; valvae asymmetrical; left valva with moderately large excavation on dorsal margin connected to costal hook, sacculus with group of dense scale sockets basally, ventroapically with large group of long, dense setae; cucullus subrectangular, slightly widened at rounded apex, with dense bristles on apicoventral margin, basal margin forming a moderately wide, subtriangular lobe projecting towards sacculus, lobe with row of 10 long, stout, spiniform setae; right valva with moderately large excavation on dorsal margin connected to costal hook, sacculus basally with group of dense scale sockets, medially with a cluster of dense, long setae, ventroapically strongly swollen, covered with moderately dense setae, longer than setae on left valva, some setae with a distinct small hook near apex ( Fig. 16 ); right cucullus narrower than left, subrectangular, parallel margined, apex slightly truncated, bristles dense, except sparsely setose dorsobasally, basal margin with moderately wide, rounded lobe projecting towards sacculus, lobe with row of 8 long, stout, spiniform setae reaching dorsal margin of sacculus. Female genitalia ( Figs. 19–21 ) with papillae anales narrow; apophyses posteriores as long as apophyses anteriores; sternum 7 with posterior half slightly sclerotized, posterior margin folded inwardly, with a wide, U-shaped emargination medially, scale sockets dense; tergum 8 with dense scale sockets along posterior margin reaching triangular lateral extensions; ostium bursae opening behind emargination of sternum 7, surrounded by raised, asymmetrical, dome-shaped sterigma, densely microtriciate, lamella antevaginalis forming a narrow band connected to complex, asymmetrical lamella postvaginalis, with two different sizes of subtriangular excavations, connected to large, weakly sclerotized plate, densely microtrichiate; ductus bursae ca 0.57 length of corpus bursae; colliculum forming two narrow sclerites on opposite sides of ductus, middle of ductus bursae with large, weakly sclerotized band; ductus seminalis originating between colliculum and weakly sclerotized band; corpus bursae with moderately large scobination patch (= signum).

Holotype. ♂, Thailand: Nakhon Nayok Prov., Khao Yai N. P., 14°17'13"N 101°23'37"E, ca. 400 m, 4 Jul 2016,

N. Pinkaew, np8962 (genitalia slide NP3482). Deposited in Kasetsart Kamphaeng Sean Insect Collection ( KKIC). Paratypes (39♂, 10♀). Thailand: Ratchaburi Prov. Thaiprajan N.P., 13°15'57"N 99°33'23"E, ca. 172 m, 2 Sep

2006, N. Pinkaew, np1718 (♂). Chanthaburi Prov., Ang-et Com. For., 12°36'04"N 102°19'50"E, ca . 33 m, 20 Oct 2011, N. Pinkaew, np8716 (♀); Ang-et Com. For. , 12°36'04"N 102°19'50"E, ca . 33 m, 22-23 Dec 2011, N. Pinkaew, np8741 (♂); Khao Khichakut N.P., 12°50'21"N 102°07'15"E, ca. 73 m, 21 Feb 2012, N. Pinkaew, np7711 (♂), np7713 (♂), np7717 (♂), np7724 (♂); Khao Khichakut N.P., 12°50'23"N 102°19'53"E, ca. 950 m, 19 Apr 2012, N. Pinkaew, np7734 (♀), np7735 (♀), np7736 (♂), np7737 (♂), np7738 (♂); Khao Khichakut N.P., 12°48'37"N 102°09'11"E, ca. 92 m, 6 Jun 2013, N. Pinkaew, np5843 (♂ genitalia slide NP1983). Trat Prov . Trat Agroforestry R. St., 12°23'34"N 102°40'00"E. ca . 46 m, 18–19 Mar 2010, N. Pinkaew, np3654 (♂), np3685 (♂), np3700 (♂); Trat Agroforestry R. St. , 12°23'43"N 102°40'32"E. ca . 30 m, 19–20 Oct 2011, N. Pinkaew, np4874 (♂ genitalia slide NP1573), np5303 (♀); Trat Agroforestry R. St. , 12°23'43"N 102°40'32"E. ca . 30 m, 16–18 Jun 2012, N. Pinkaew, np5111 (♂ genitalia slide NP1575), np5302 (♂ genitalia slide NP1575). Prachuap Kiri Khan Prov. Kui Buri N.P., 12°21'29"N 99°28'55"E. ca . 365 m, 16 May 2015, N. Pinkaew, np7676 (♂ genitalia slide NP2983), np7680 (♂), np7681 (♂). Sa Kaeo Prov. Pang Sida N.P. 14°00'54"N 102°11'45"E. ca . 260 m, 24 Apr 2017, N. Pinkaew, np9872 (♂); Pang Sida N.P. 14°07'37"N 102°15'30"E. ca. 610 m, 20 Jun 2017, N. Pinkaew, np10410 (♂), np10411 (♂);Pang Sida N.P. 14°07'37"N 102°15'30"E. ca. 610 m, 22 Aug 2017, N. Pinkaew, np10728 (♂), np10717 (♂), np10718 (♂); Pang Sida N.P. 13°59'36"N 102°12'21"E. ca. 165 m, 19 Oct 2017, N. Pinkaew, np11207 (♂), np11208 (♀). Chaiyaphum Prov. Chulaphorn Dam, 16°32'10"N 101°39'00"E. ca . 750 m, 7–9 Mar 2017, N. Pinkaew, np9683 (♂). Nakhon Nayok Prov. Khao Yai N.P. 14°26'17"N 101°22'25"E. ca . 737 m, 1 Apr 2009, N. Pinkaew, np2996 (♂); Khao Yai N.P. 14°23'56"N 101°22'16"E. ca. 786 m, 13 Feb 2010, N. Pinkaew, np3422 (♀), np3443 (♂), np3447 (♀ genitalia slide NP1362), np3452 (♂), np3454 (♂), np3479 (♂ genitalia slide NP3479), np3483 (♀); Khao Yai N.P. 14°17'13"N 101°23'37"E. ca . 400 m, 7 Mar 2016, N. Pinkaew, np8158 (♂ genitalia slide NP3483); Khao Yai N.P. 14°17'13"N 101°23'37"E. ca. 400 m, 2 May 2016, N. Pinkaew, np8533 (♂), np8608 (♂); Khao Yai N.P. 14°17'13"N 101°23'37"E. ca. 400 m, 4 Jul 20016, N. Pinkaew, Khao Yai N.P. 14°26'18"N 101°22'24"E. ca. 740 m, 9 Mar 2016, N. Pinkaew, np8293 (♂), np8303 (♂); Khao Yai N.P. 14°17'13"N 101°23'37"E. ca. 400 m, np8942 (♂), np8966 (♀ genitalia slide NP3484), np8967 (♀ genitalia slide NP3485); Khao Yai N.P. 14°17'13"N 101°23'37"E. ca . 400 m, 5 Sep 2016, N. Pinkaew, np9102 (♂); Khao Yai N.P. 14°26'18"N 101°22'24"E. ca. 740 m, 26 Nov 2016, N. Pinkaew, np9367 (♀ genitalia slide NP3486). Specimens deposited in KKIC. Nakhon Nayok Prov. Khao Yai N.P. 14°23'56"N 101°22'16"E. ca . 786 m, 13 Feb 2010, N. Pinkaew, np3424 (♂), np3435 (♀). Specimens deposited in Australian National Insect Collection ( ANIC).

Distribution. Thailand (Ratchaburi, Chanthaburi, Trat, Prachuap Kiri Khan, Chaiyaphum, Sa Kaeo, Nakhon Nayok)

Etymology. The specific epithet is a combination of the Latin ordo (= row) and spina (= spine), and refers to the row of narrow spines at the base of the cucullus.

Figures

FIGURES 1–4. Adults of Baburia and Metendothenia (scale bars = 2 mm). 1. B. paucustriga (male holotype), 2. B. paucustriga (female paratype), 3. M. ordospina (male holotype), 4. M. ordospina (female paratype).

FIGURES 5–6. Heads of Baburia and Metendothenia. 5. B. paucustriga (male paratype), 6. M. ordospina (male paratype).

FIGURES 7–9. Anal lobe of hindwing of Baburia and Metendothenia. 7. M. ordospina with scales (male paratype), 8. M. ordospina without scales (male paratype), 9. B. paucustriga (male paratype).

FIGURES 10–11. Hind tibia pencils of Baburia and Metendothenia. 10. B. paucustriga (male holotype), 11. M. ordospina (male paratype).

FIGURES 15–16. Metendothenia ordospina (holotype). 15. Male genitalia, 16. Hook near apex of long setae from right valva.

FIGURES 19–21. Metendothenia ordospina (paratype). 19. Female genitalia, 20. Ostium and sterigma, 21. Signum.