Blastobasis lygdi Adamski, new species
Creators: name: Adamski, David
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Blastobasidae
Blastobasis
Blastobasis lygdi

description: Blastobasis lygdi Adamski, new species
(Figs. 5, 67–68, 277, 320, Map 5)
Diagnosis.— Blastobasis lygdi is similar to B. paludis in facies but differs from the latter by having a narrower gnathos; a less inwardly curved apical process of the ventral part of the valva; and a shorter phallus.
Description.—Head: Vertex pale gray, pale brown, or dark brown; frontoclypeus pale brown. Outer and inner surfaces of labial palpus brown intermixed with pale-brown scales along apical margin of second segment or second segment dark brown intermixed with pale-brown scales along apical margin, terminal segment paler. Antennal scape and pecten pale brown, flagellum brownish gray; first flagellomere in male dilated, inner surface of dilated part with 14 palmate sex scales (n=1), (Fig. 277). Proboscis pale brown.
Thorax: Tegula with basal 1/2 brown or dark brown, apical 1/2 pale brown; mesonotum dark brown or pale brown, or basal 1/2 dark brown, apical 1/2 pale brown. Legs brownish gray intermixed with pale brownish-gray scales near midsegments and on apical margins of all segments and tarsomeres. Forewing (Fig. 320): Length 4.2–6.1 mm (n = 30), pale brown intermixed with brown and brownish-yellow scales; submedian fascia present or absent, if present fascia complete or incomplete, faint or dark; cell with three spots, one near middle, two near apical end along crossvein. Undersurface brown. Venation (Fig. 5) with M3 slightly curved and CuA1 and CuA2 near parallel. Hindwing: Translucent brown or translucent brown gradually darkening to apex. Venation (Fig. 5) with cell closed anteriorly, open posteriorly; cubitus 4-branched with all veins arising submarginally from cubitus.
MAP 5. Distribution of Blastobasis lygdi (●) and B. dapis (˔).
Abdomen: Male genitalia (Figs. 67–68): Uncus gradually narrowed from base, slightly downcurved, sparsely setose; apically rounded; about equal in length to width of anal opening. Dorsal strut of tegumen absent. Gnathos, a narrow band, confluent with tegumen, posteroventral margin greatly protracted mesially, bidentate; midwidth of pigmented part of gnathos slightly narrower than midwidth of uncus. Sockets of tergal setae nearly extending to 1/ 2 length of tegumen. Valva divided; ventral part broadened basally, gradually narrowed apically, forming inwardly curved spinelike process; process setose on outer surface, planate on inner surface; ventral margin setose from 1/2, slightly upturned from middle, forming narrow fold to near base of slightly widened setose lobe at base of spinelike process; dorsal part with apical portion of costa extending dorsolaterally, forming setose digitate process; area beneath costa overlaid with densely packed microtrichiate membrane extending above and below phallus to opposite side; basal ridge of digitate process protracted ventrally fusing with dorsolateral ridge of proximal flange; flange extending ventrolaterally, forming semicircular ridge bearing conical setae intermixed with densely packed microtrichiae. Juxta bandlike. Vinculum semicircular. Phallus and sclerite of phallus shorter than valva; sclerite of phallus abruptly curved at 2/3; anellus wider apically than at base, setose along margins. Female Genitalia: Unknown.
Holotype, 3, “Est[ación] Cacao, 1000–1400 m, Lado SO Vol[can] Cacao, P[arque] N[acional] G[uanacaste], Prov[incia] Guan[acaste], COSTA RICA, F.A. Quesada, Jun[io] 1991, L-N-323300, 375700”, “INBio: COSTA RICA: CRI000, 613311” [barcode label], “INBio 3 Genitalia Slide by D. Adamski, No. 3031” [yellow label]. Paratypes (34 3): 1 3, same data as for holotype except, “CRI000, 613292”, “Slide No. 3012”, “USNM 83563”; 3 3, “C. Chaves”, “CRI000, 623544”, “Slide No. 3180”, “USNM 83564”; “CRI000, 623327”, “Slide No. 3204”, “CRI000, 585968”, “Slide No. 3174”; 2 3, “D. Garcia, Jun.-Jul.”, “CRI000, 571732”, “Slide No. 3151”; “CRI000, 571743”, “Slide No. 3753”; 6 3, “C. Chaves, 25 Set.-11 Oct. ”, “CRI000, 390330”, “Slide No. 3131”; “CRI000, 390226”, “Slide No. 3142”; “CRI000, 390027”, “Slide No. 3143”, “USNM 83565”; “CRI000, 390035”, “Slide No. 3144”, “USNM 83566”; “CRI390183”, “Slide No. 3147”; “CRI000, 577711”, “Slide No. 3159”; 4 3, “ 23 Oct.-9 Nov. ”, “CRI000, 576444”, “Slide No. 3039”, “USNM 83567”; “CRI000, 316090”, “Slide No. 3009”, “USNM 83568”; “CRI000, 576503”, “Slide No. 3020”; “CRI000, 315811”, “Slide No. 3062”; 1 3, “C. Chaves & R. Espinoza, Nov.-Dic.”, “CRI000, 321462”, “Slide No. 3073”, “USNM 83574a”; 1 3, “II Curso Parataxon., Jun.”, “CRI000, 609269”, “Slide No. 3034”, “USNM 83569”; 3 3, “C. Chaves, Abr. 1991 ”, “CRI000, 319766”, “Slide No. 3101”, “USNM 83570”; “CRI000, 434654”, “Slide No. 3053”; “CRI000, 434691”, “Slide No. 3754”; 1 3, “ 8–12 Oct. 1991 ”, “CRI000, 350242”, “Slide No. 3750”; 1 3, “A. Guadamuz, Jun.-Ago.”, “CRI000, 338516”, “Slide No. 3078”, “Wing Slide No. 7054”; 1 3, “K. Flores, 21–28 May. 1992 ”, “CRI000, 708489”, “Slide No. 3027”; 1 3, “C. Cano”, “CRI000, 448373”, “Slide No. 3021”; 1 3, “M. Ortiz”, “CRI000, 420071”, “Slide No. 3127”; 4 3, “III Curso Parataxon., May. 1992 ”, “CRI000, 416882”, “Slide No. 3749”; “CRI000, 416912”, “Slide No. 3064”, “USNM 83571”; “CRI000, 417059”, “Slide No. 3146”; “CRI000, 416909”, “Slide No. 3107”, “USNM 83572”; 2 3, “ 1100 m, 7–18 Feb. 1995, M. Madrigal, # 4709”, “CRI002, 187165”, “Slide No. 3227”; “CRI002, 187111”, “Slide No. 3229”; 1 3, “San Luis, Monteverde, A.C.Arenal, Prov. Punt., COSTA RICA, 1000–1350 m, Jul. 1994, Z. Fuentes, L-N- 250850, 449250, # 3074”, “CRI002, 013946”, “Slide No. 3860”; 1 3, “ 1040 m, R.B. Monteverde, Mar. 1993 ”, “CRI001, 195887”, “Slide No. 3868”, “USNM 83573” [22 in INBio, 12 in USNM].
Distribution (Map 5). Blastobasis lygdi is known from two collecting sites; one in the western most part of the Cordillera de Guanacaste in northwestern Costa Rica and one along the western part of the Cordillera de Tilarán in the west-central part of the country.
Etymology. The specific epithet lygdi is derived from the Latin lygdos, meaning white marble.
description: Published as part of Adamski, David, 2013, Review of the Blastobasinae of Costa Rica (Lepidoptera: Gelechioidea: Blastobasidae), pp. 1-223 in Zootaxa 3618 (1) on pages 21-23, DOI: 10.11646/zootaxa.3618.1.1, http://zenodo.org/record/247396