Blastobasis rotullae Adamski

Adamski, David, 2013, Review of the Blastobasinae of Costa Rica (Lepidoptera: Gelechioidea: Blastobasidae), Zootaxa 3618 (1), pp. 1-223 : 58-60

Blastobasis rotullae Adamski , new species

( Figs. 19 , 109–110 , 298 , 341 , Map 17)

Diagnosis.— Blastobasis rotullae is similar to B. custodis in facies but differs from the latter by having the sockets of tergal setae not extending beyond the midlength of the tegumen; a more narrowly rounded apicoventral margin of proximal flange of the dorsal part of the valva; and a smaller anellus.

Description.—Head: Vertex and frontoclypeus pale brown. Outer surface of labial palpus brown intermixed with pale-brown scales along apical margins of segments 1–2, inner surface paler. Antennal scape pale brown intermixed with few brown scales, pecten pale brown, flagellum brownish gray; first flagellomere in male dilated, inner surface of dilated part with 42 palmate sex scales (n=1), ( Fig. 298 ). Proboscis brownish gray.

Thorax: Tegula and mesonotum pale brown intermixed with brown scales. Legs brown intermixed with palebrown scales near midsegments and along apical margins of all segments and tarsomeres. Forewing ( Fig. 341 ): Length 4.2–5.9 mm (n = 8), pale brown intermixed with brown scales or with brownish-gray scales tipped with pale brown intermixed with pale-brown scales; cell with three brown spots, one spot near middle, two spots on apical end along crossvein; marginal spots brown. Undersurface brownish gray. Venation ( Fig. 19 ) with M3 and CuA1 arising from common point on distoposterior part of cell; cubital veins divergent from bases; CuA1 straight, CuA2 acutely curved basally. Hindwing: Translucent brownish gray gradually darkening to apex. Venation ( Fig. 19 ) with cell closed, posterior part of crossvein weak; cubitus 4-branched with all veins arising submarginally from cubitus.

MAP 17. Distribution of Blastobasis rotullae (●) and B. custodis (˔).

Abdomen: Male genitalia ( Figs. 109–110 ): Uncus slightly narrowed from base, narrowly rounded apically, slightly downcurved, sparsely setose, about equal in length to width of anal opening. Dorsal strut of tegumen absent. Gnathos wide, confluent with tegumen, posteroventral margin slightly protracted mesially, shallowly bidentate. Sockets of tergal setae not extending to midlength of tegumen. Valva divided; ventral part nearly parallelsided from base, abruptly narrowed apically, forming inwardly curved spinelike process; process setose on outer surface, planate on inner surface; ventral margin setose, upturned near middle, forming narrow fold to near slightly raised, setose lobe at base of apical 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; ventral margin of proximal flange linear, extending laterally forming narrowly rounded, apicoventral ridge; membrane above proximal flange bearing several conical setae intermixed with sparse microtrchiae. Juxta bandlike. Vinculum semicircular. Phallus shorter than valva, bulbous basally; sclerite of phallus longer than valva, subsigmoid-shaped; anellus widened basally, parallelsided; apex shallowly notched mesially, trisetose along lateral margins. Female Genitalia: Unknown.

Holotype, 3, “Est[ación] Queb[rada] Bonita, 50 m, Res[erva] Biol[ógica] Carara, Prov[incia] Punt[arenas], COSTA RICA, R. Zuniga, Feb[rero] 1991, L-N-194500, 469850”, “INBio: COSTA RICA: CRI000, 680082” [barcode label], “INBio 3 Genitalia Slide by D. Adamski, No. 3894” [yellow label].

Paratypes (7 3): 1 3, same data as for holotype except, “ Jun. 1991 ”, “CRI000, 349060”, “Slide No. 3898”, “USNM 83833”; 1 3, “Est. Sirena, P.N. Corcovado, 0–100 m, Prov. Punt., COSTA RICA, G. Fonseca, Abr. 1991, L-S- 270500, 508300”, “CRI000, 475888”, “Slide No. 3934”; 3 3, “ Abr. 1992 ”, “CRI000, 794325”, “Slide No. 3919”, “USNM 83834”; “CRI000, 794563”, “Slide No. 3920”, “USNM 83835”; “CRI000, 794420”, “Slide No. 3922”; 1 3, “ May. 1992 ”, “CRI000, 914702”, “Slide No. 4024”, “Wing Slide No. 7041”; 1 3, “G. Fonseca, May. 1993 ”, “CRI001, 205285”, “Slide No. 3931”, “USNM 83836”, [3 in INBio, 4 in USNM].

Distribution (Map 17). Blastobasis rotullae is known from two collecting sites in southern Costa Rica; one near the mouth of the Golfo de Nicoya, and the other along the southeastern coastline on the Osa Peninsula.

Etymology. The specific epithet rotullae is derived from the Latin rotulla meaning, little wheel.

Figures

FIGURES 11 – 20. Wing venation of Blastobasinae. 11, Blastobasis erae (slide 7040). 12, Blastobasis iuanae (slide 7045). 13, Blastobasis graminea Adamski, 1999 (slide 83226). 14, Blastobasis neniae (slide 7055). 15, Blastobasis orithyia (slide 7053). 16, Blastobasis babae (slide 7049). 17, Blastobasis echus (slide 7036). 18, Blastobasis coffeaella (Busck, 1925) (USNM slide 83227). 19, Blastobasis rotullae (slide 7041). 20, Blastobasis deliciolarum (slide 7047).

FIGURES 105 – 110. Male genitalia of Blastobasinae. 105 – 106, Blastobasis fax (slide 3454). 107 – 108, Blastobasis coffeaella (Busck, 1925) (USNM slide 82543). 109 – 110, Blastobasis rotullae (slide 3894).

FIGURES 292 – 299. Male sex scales on first flagellomere of Blastobasis. 292, Blastobasis usurae. 293, Blastobasis echus. 294, Blastobasis litis. 295, Blastobasis chanes. 296, Blastobasis fax. 297, Blastobasis coffeaella (Busck, 1925). 298, Blastobasis rotullae. 299, Blastobasis custodis.

FIGURES 336 – 343. Imagos of Blastobasinae. 336, Blastobasis echus, holotype. 337, Blastobasis litis, holotype. 338, Blastobasis chanes, holotype. 339, Blastobasis fax, holotype. 340, Blastobasis coffeaella (Busck, 1925). 341, Blastobasis rotullae, holotype. 342, Blastobasis custodis, holotype. 343, Blastobasis deliciolarum, holotype.