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Revision of the Genus Exoletuncus Razowski, 1988 (Euli Ini, Tortricidae, Lepidoptera), with Description of Four New Species And- Colosyta N

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Revision of the Genus Exoletuncus Razowski, 1988 (Euli Ini, Tortricidae, Lepidoptera), with Description of Four New Species And- Colosyta N Miscel.lania Zoologica 20.1 (1997) 131 Revision of the genus Exoletuncus Razowski, 1988 (Euli ini, Tortricidae, Lepidoptera), with description of four new species and- Colosyta n. gen. J. Razowski Razowski, J., 1997. Revision of the genus Exoletuncus Razowski ,1988 (Euliini, Tortricidae, Lepidoptera), with description of four new species and Colosyta n. gen. Misc. Zool., 20.1: 131-136. Revision of the genus Exoletuncus Razowski, 1988 (Euliini, Tortricidae, Lepidoptera), with descrip- tion of four new species and Colosyta n.gen.- The Neotropical genus Exoletuncus is reviewed. Six species are included in the genus, four of which are described: rnusivus, consertus, artifex, cretatus. Exoletuncus trilobopa (Meyrick), a new combination, is transferred to the genus on the basis of facies; the holotype lacks the abdomen. Colosyta n. gen. is described to accommodate Eulia ocystola Meyrick, previously included in Exoletuncus. Key words: Lepidoptera, Tortricidae, Exoletuncus, Neotropical, Colosyta n. gen (Rebut: 24 V 96; Acceptació condicional: 16 XI 96; Acc. difinitiva: 28 1 97) Józef Razowski, Inst. of Systernatics and Evolution of Anirnals, Polish Acaderny of Sciences, 3 1-0 16 Kraków, Slawkowska 77, Poland. lntroduction Exoletuncus was described (RAZOWSKI, 1988) to accommodate a single species from As with many Neotropical tortricids, the Colombia, E. exoristus Razowski. A second tribe Euliini has been poorly studied and its species, Eulia ocystola Meyrick, was later biology is unknown. transferred to the genus (RAZOWSKI,1990). The majority of Neotropical genera of The purpose of this paper is to describe the Euliini tribe were described as mono- four new species of Exoletuncus and pro- typic, and currently are rnostly treated as vide additional details on the morphology such (POWELLet a1.,1995). and geographic distribution of the genus. ISSN: 021 1-6529 O 1997 Museu de Zoologia 1 132 Razowski Material and methods panded basally; aedeagus with slender ventral termination, without cornuti; caulis The paper is based on eight specimens de- very small; group of setae on anellus above posited in the following institutions: Ameri- zone. can Museum Natural History, New York (AMNH); the Canadian National Collection, Remark Ottawa (CNC); the Natural History Museum Female unknown. London (NHML); the United States National Museum, Smithsonian Institution, Washing- Distribution and biology ton D.C. (SI); Naturhistorisches Museum, The genus is exclusively Neotropical distrib- Wien (NHMW); and the Zoological Museum uted in western South America from Colom- Copenhagen (ZMC). bia to Central Chile and Rio Grande do Sul, Brazil. The biology is unknown. Results Diagnosis Autapomorphies for the genus include Exoletuncus Razowski, 1988 the configuration of the socius, the inner Exoletuncus Razowski, 1988. Acta zoool. cracov., edge of which reaches the top of tegumen, 31(10): 390. and the sclerotized edges of the tuba Type-species: Exoletuncus exoristus, Razowski, analis (at least one of these two characters 1988, by original designation. is absent in exoristus and consertus). The presence of the spines of the disc of the All known species of Exoletuncus are similar valva and the forewing of the pattern are in coloration and pattern. The head and of convergent importance. The genus is part of the thorax (tegula) are white; the closest to Chilips Razowski, 1988; the shape forewing has a white ground colour, with a of the ventral termination of the aedeagus pattern of black or brownish black pattern and the position of the spines of the valva in the form of a series of spots forming are probable synapomorphies. The differ- incomplete basal, median, and subapical- ences among the species are slight in pat- terminal groups corresponding with typical tern and genitalia. pattern elements of Tortricinae. The fringe is concolorous with the ground colour, with a black apical mark. Exoletuncus exoristus Razowski, 1988 Exoletuncus exoristus Razowski, 1988. Acta zool. Male genitalia cracov., 31(10): 390, figs. 7-9. Characterized by a highly sclerotized ter- Type-locality: Colombia: Cauca: Paramo de minal portion of the tegumen; uncus well Parace (Lake San Rafael); coll. USNM. developed only in exoristus, in other spe- cies the dista1 parts of tegumen form a Exoletuncus trilobopus (Meyrick, 1926), small prominence with a distinct median n. comb. slit accentuated by inner edge of socius; Eulia trilobopa Meyrick, 1926, Exotic Microlepid., socius membranous, long hairy, drooping; 3: 249. tuba analis well sclerotized in most spe- Type-locality: Brazil: Rio Grande do Sul; coll. cies, especially along edges, membranous; NHML. gnathos arms slender, simple, extending Eulia triloba [sic!] Clarke, 1958, Cat. Microlepid. into variably developed, usually long ter- Meyrick, 3: 11401, pl. 70, fig. 4 [photogr. of minal tip; vinculum simple, fully scle- holotype]. rotized; valva in type-species slender, in Clarkenia trilobopa: J. W. Brown, 1989, J. Lepid. others broad in basal part, with species- Soc., 43(4): 318. specific terminal portion and group of spines on disc usually beyond sacculus; Alar expanse ca 24 mm; labial palpus and sacculus without free termination, more abdomen missing. or less convex submedially; transtilla a Head, thorax and ground-colour of fore- simple band-shaped sclerite somewhat ex- wing with slight yellowish-olive hue. Fore- Miscel.lania Zoologica 20.1 (1997) 133 wing termen not sinuate. Pattern black Material studied consisting of rather small blotches; distal Holotype, male, 'Ecuador, Napo-Pastaza: E. edge of terminal blotch straight. Hind- of Papallacta, October 6-8, 1977, L. E. Pena'. wing brownish cream, suffused and spot- Paratype with identical label; coll. AMNH. ted brown. Remarks Exoletuncus artifex n. sp. Based on forewing pattern, BROWN(1989) included it in Clarkenia. However, the pat- Alar expanse 20 mm; as preceding species tern elements indicate more appropriate but labial palpus blackish to before end, assignment to Exoletuncus. forewing ground-colour yellowish white, pattern black consisting of small elements, with subterminal blotch long. Exoletuncus rnusivus n. sp. Male genitalia (figs. 5, 6) Alar expanse 26 mm; labial palpus 2.5, black- As in rnusivus but top of tegumen somewhat ish; head and thorax white cream; forewing elongate forming an uncus-like structure, ter- ground-colour white. Termen sinuate. Pat- minal part of gnathos strong, socius not ta- tern elements black, broader than in pering apical, rounded terminally, valva much trilobopa; distal edge of terminal fascia slenderer, with very slender terminal portion slightly concave, oblique to termen; hind- and slenderer, less angulate sacculus; aedeagus wing paler. shorter, with long terminal process. Male genitalia (figs. 1, 2) Material studied Uncus atrophied; distal part of tegumen Holotype, male, 'Peru: Dept. Apurimac 47: and socius tapering apically; tuba analis 12 km N Abancay Cerro Turon mocco, 17.- distinctly sclerotized, tapering apically; 18.111.1987, 3500 m, O. Karsholt leg. Zool. valva broad, weakly narrowing terminally, Mus. Copenhagen'; coll. ZMC. with spined area expanding in distal por- tion dorsally; sacculus angulate; aedeagus fairly broad. Exoletuncus cretatus n. sp. Material studied Alar expanse 26 mm; similar to trilobopa, Holotype, male, 'Aqualani, Carabaya, with somewhat different shapes of the black 9000 ft., Dec. [19]05, wet season (G. R. blotches of forewing. Ockenden)'; genitalia slide: 6775 [NHML], in the collection of the NHML. Male genitalia (figs. 7, 8) As in artifex, but without uncus-like promi- nence of tegumen, with slender, delicate Exoletuncus consertus n. sp. terminal part of gnathos, spined edges of well sclerotized tuba analis, ovate terminal Alar expanse 22-24 mm. Similar to preced- part of valva, rounded sacculus and slender ing species but labial palpus cream-grey, aedeagus. forewing distinctly expanding terminally, pattern of forewing broader. Material studied Holotype, male, 'El Limbo, Prov. Chapare, Male genitalia (figs. 3, 4) Dep. Cochabamba, Bolivia, 2000 m, NW, As in rnusivus but tuba analis membranous, 1962, Through F. M. Walz'; coll. CNC. arms and terminal plate of gnathosslenderer, valva more elongate, slender in distal third, Eulia ocystola Meyrick was transferred to with spined area slender, oblique and Exoletuncus on the basis of similarities in the sacculus slender, not angulate distally and male genitalia (Rnzows~i, 1990). However, aedeagus slender, with long ventro-termi- this species does not belong to this genus, nal process. and a new genus is described below. 134 ~azowski Figs. 1-6. Male genitalia of Exoletuncus Razowski holotypes: 1, 2. E. musivus n. sp.; 3, 4. E. consertus n. sp.; 5, 6. E. artifex n. sp. Genitalia masculina de Exoletuncus Razowski, holotipos:. 7, 2. E. musivus sp. n.; 3, 4. E. consertus sp. n.; 5, 6. E. artifex sp. n. Miscel.lania Zooloaica 20.1 (1997) 135 Figs. 7-10. Male genitalia: 7, 8. Exo/etuncus cretatus n. sp., holotype; 9, 10. Colosyta ocystola (Meyrick), holotype. Genitalia masculina: 7, 8. Exoletuncus cretatus sp. n., holotipo; 9, 10. Colosyta ocystola (Meyrick), holotipo. Colosyta n. gen. lum extending in middle, ventrally; gnathos slender, with slender, long terminal part; Type-species: Eulia ocystola Meyrick, 1932 socius large, drooping; valva slender except for basal third, sacculus broad to middle, Coloration cryptic, grey with brown-grey angulate, then slender, provided with thin and blackish remnants of pattern. Venation: free termination; median part of transtilla in forewing
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