Blastobasis lygdi Adamski

Adamski, David, 2013, Review of the Blastobasinae of Costa Rica (Lepidoptera: Gelechioidea: Blastobasidae), Zootaxa 3618 (1), pp. 1-223 : 21-23

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.

Figures

FIGURES 1 – 10. Wing venation of Blastobasinae. 1, Hallicis bisetosellus (slide 7008). 2, Hallicis clavicula (slide 7009). 3, Barbaloba jubae (slide 7018). 4, Blastobasis paludis (slide 7044). 5, Blastobasis lygdi (slide 7054). 6, Blastobasis dapis (slide 7025). 7, Blastobasis balucis (slide 7043). 8, Blastobasis caetrae (slide 7052). 9, Blastobasis furtivus (slide 7046). 10, Blastobasis deae (slide 7038).

FIGURES 63 – 68. Male genitalia of Blastobasinae. 63 – 64, Barbaloba jubae (slide 2130). 65 – 66, Blastobasis paludis (slide 3057). 67 – 68, Blastobasis lygdi (slide 3031).

FIGURES 276 – 283. Male sex scales on first flagellomere of Blastobasis. 276, Blastobasis paludis. 277, Blastobasis lygdi. 278, Blastobasis dapis. 279, Blastobasis balucis. 280, Blastobasis caetrae. 281, Blastobasis furtivus. 282, Blastobasis deae. 283, Blastobasis erae.

FIGURES 320 – 327. Imagos of Blastobasinae. 320, Blastobasis lygdi, holotype. 321, Blastobasis dapis, holotype. 322, Blastobasis balucis, holotype. 323, Blastobasis caetrae, holotype. 324, Blastobasis furtivus, holotype. 325, Blastobasis deae, holotype. 326, Blastobasis erae, holotype. 327, Blastobasis iuanae, holotype.