Baburia paucustriga Jirasuttayaporn and Pinkaew

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: 160-161

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Baburia paucustriga Jirasuttayaporn and Pinkaew


Baburia paucustriga Jirasuttayaporn and Pinkaew  , n.sp.

( Figs. 1–2 View Figure , 5 View Figure , 9–10View FIGURES 7–9View FIGURES 10–11, 12–14 View Figure , 17–18 View Figure )

Diagnosis. The adult of Baburia paucustriga  is similar to that of B. trachymelas  in wing shape and wing pattern, but B. paucustriga  has a more distinct subtriangular tornal patch. Male genitalia of B. paucustriga  are similar to those of B. trachymelas  , but in B. paucustriga  the apex of the uncus is abruptly widened ovately and the sacculus has a small triangular lobe at the middle of the ventral margin. In contrast, in B. trachymelas  the apex of the uncus is slightly dilated and the sacculus lacks a small triangular lobe at the ventral margin.

Description. Head ( Fig. 5 View Figure ): Lower frons cream-white, upper frons and vertex cream mixed with pale brown; labial palpi porrect, first segment short, cream mixed with dark brown dorsally, second segment long and curved with margins parallel, cream with brown scales along dorsal margin from base to near apex and extending downward to ventral margin, third segment short, brown except pale brown at apex, antenna brown, reaching to middle of forewing. Thorax: Pronotal collar, tegulae, mesonotum, and posterior crest cream mixed with dark brown; hindtibia covered with dense, long white scales in male, inner margin with a tuft of long, orange-white scale (hairpencil), originating from base of hindtibia ( Fig. 10 View Figure ). Forewing subrectangular, broad, length 8.0–8.5 mm in male ( Fig. 1 View Figure ) (n = 3), 8.5 mm in female ( Fig. 2 View Figure ) (n = 2), costal margin evenly curved, ground color cream, basal half of wing with several irregular, narrow, sinuate, transverse striae; basal patch with irregular, broken, transverse stripe from costa to dorsum, brown mixed with dark brown, median patch with brown subtriangular mark on costa medially, dorsum with large, semicircular tornal patch, brown mixed with dark brown, apically with irregular, longitudinal, short and narrow dark brown lines, between vein from R2 extending curve to CuA2, apex with a small dark brown spot; costal strigulae well developed, cream, each separated by a dark brown streak; termen slightly curved from apex to CuA1 then strongly curved to tornus, underside of forewing brown with pale brown marks along costa. Hindwing subtriangular, brown, slightly paler basally, anal margin in male with a modified, long, sclerotized, shallow groove without scales ( Fig. 9 View Figure ); underside pale brown. Abdomen: Male genitalia ( Figs. 12–14 View Figure ) with tegumen subtriangular, dorsolaterally with small angled shoulders, scale sockets dense ventrally, apodeme of M4 (muscle connecting ventral tegumen with costal hook of valva) small and forming pointed hook; uncus moderately long, curved outward apically, basal half abruptly widened in apical half, apex ovate; base of uncus with sclerotized ridge with projections angled laterally, possibly homologous with socii; gnathos comprised of weakly sclerotized bands, arising near middle of tegumen, slightly widened to median, medially concave and connected to cup-shaped anellus; vinculum moderately sclerotized; juxta subtriangular; caulis moderately long; phallus rather short, wide, oblique apically, with numerous lanceolate cornuti, 3/4 length of phallus; valva long and slender; sacculus rather short, with moderately dense sockets basally, continued as row of short setae reaching base of cucullus, medially with patch of dense setae from margin of basal opening to base of cucullus, dorsal margin with a large hump bearing a conspicuous tuft of long bristles, ventral margin with a small subtriangular lobe ventromedially, rounded apically; cucullus long, dorsal margin slightly curved, apical margin sinuate, narrow at apex, with rounded elbow at base, covered with mixture of dense, short setae and long spiniform setae except for dorsal and dorsoapical margins, with a large, strong spine at ventroapical margin, remainder with bifid and flattened bristles mixed with setae. Female genitalia ( Figs. 17–18 View Figure ) with sternum 7 sclerotized, posterior margin deeply concave and ovate surrounding ostium and sterigma, with dense scale sockets on posteromedial margins adjacent to lamella postvaginalis; tergum 8 smooth with moderately dense scale sockets on lateral triangular extensions; papillae anales with dense setae; sterigma with lamella antevaginalis reduced, lamella postvaginalis with dense microtrichia, heavily sclerotized in posterior half, with sclerotization extending anteriorly as narrow medial band to ostium bursae; ductus bursae long, weakly sclerotized; antrum ovate, connected to moderately sclerotized colliculum, conical shaped; ductus seminalis arising at posterior 1/3 of ductus bursae, corpus bursae large, ovoid, without signum.

Holotype. ♂, Thailand: Sa Kaeo Prov., Pang Sida N. P., 14 °07' 37 "N 102°15'30"E, ca. 610 m, 28 Feb 2017, N. Pinkaew, np9500 (genitalia slide NP3487). Deposited in Kasetsart Kamphaeng Sean Insect Collection ( KKIC).GoogleMaps 

Paratypes (3♂, 2♀). Thailand: Kanchanaburi Prov., Chaloem Rattanakosin N.P., 14 °39'30"N 99°18'17"E, ca. 310 m, 20 Mar 2017, N. Pinkaew, np9755 (♀ genitalia sslide NP3495), Nikom Sahakorn Thong Pha Phum , 14°45'40"N 98°49'14"E, ca. 658 m, 13 May 2018, N. Pinkaew, np11611 (♀)GoogleMaps  . Nakhon Nayok Prov., Khao Yai N.P., 14°26'18"N 101°22'24"E, ca. 740 m, 6 Jul 2016, N. Pinkaew, np9046, (♂ genitalia slide NP 3488)GoogleMaps  . Nakhon Ratchasima Prov., Khao Yai N.P., 14°25'55"N 101°24'05"E, ca. 700 m, 27 Nov 2016, N. Pinkaew, np9382 (♂)GoogleMaps  . Nakhon Ratchasima Prov., Khao Yai N.P., 14°25'55"N 101°24'05"E, ca. 700 m, 27 Nov 2016, N. Pinkaew, np 9381 (♂). All specimens deposited in KKICGoogleMaps  .

Distribution. Thailand (Sa Kaeo Prov., Nakhon Nayok Prov., Nakhon Ratchasima Prov. and Kanchanaburi Prov.).

Etymology. The specific epithet is a combination of the Latin paucus (= small) and striga (= ridge), and refers to the socii in the male genitalia.