Blastobasis caetrae Adamski

Adamski, David, 2013, Review of the Blastobasinae of Costa Rica (Lepidoptera: Gelechioidea: Blastobasidae), Zootaxa 3618 (1), pp. 1-223 : 31-32

Blastobasis caetrae Adamski , new species

( Figs. 8 , 73–74 , 253 , 280 , 323 , Map 6)

Diagnosis.— Blastobasis caetrae is similar to B. furtivus in facies but differs from the latter by having a longer uncus; a more protuberant bidentate median process on posteroventral margin of the gnathos; a longer proximal flange; a shorter phallus; and a shorter ductus bursae in the female.

Description.—Head: Vertex and frontoclypeus pale brown. Outer and inner surfaces of labial palpus pale brown intermixed with few brown scales or brown intermixed with pale-brown scales along apical margin of second segment. Antennal scape and pecten pale brown, flagellum brownish gray; first flagellomere in male dilated, inner surface of dilated part with 23 palmate sex scales (n=1), ( Fig. 280 ). Proboscis pale brown.

Thorax: Tegula with basal 1/2 brown, apical 1/2 pale brown; mesonotum brown. Legs brown intermixed with pale-brown scales near midsegments and apical margins of all segments and tarsomeres. Forewing ( Fig. 323 ): Length 4.9–6.5 mm (n = 6), pale brown intermixed with brown scales; submedian fascia incomplete; cell with three spots, one near middle, two near apical end along crossvein; marginal spots present or absent. Undersurface brown. Venation ( Fig. 8 ) with M3 and CuA1 arising from distoposterior part of cell; cubital veins divergent from bases with CuA1 curved from base and CuA2 broadly curved. Hindwing: Translucent brown or translucent brown gradually darkening to apex. Venation ( Fig. 8 ) with cell closed anteriorly, open posteriorly; cubitus 4-branched with all veins arising submarginally from cubitus.

Abdomen: Male genitalia ( Figs. 73–74 ): Uncus nearly parallelsided throughout most of length, gradually narrowed from 4/5, narrowly rounded apically, slightly downcurved, sparsely setose; slightly shorter than width of anal opening. Dorsal strut of tegumen absent. Gnathos wide, confluent with tegumen, posteroventral margin greatly protracted mesially, bidentate; midwidth of pigmented part of gnathos slightly shorter than midwidth of uncus. Sockets of tergal setae extending beyond midlength of tegumen. Valva divided; ventral part broadened basally, gradually narrowing apically, forming inwardly curved spinelike process; process setose on outer surface, planate on inner surface; ventral margin setose and slightly upturned, forming narrow fold from slightly beyond 1/ 3, abruptly narrowed apically to near 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; base of ventral margin of proximal flange slightly cleft, widening ventrolaterally, forming subsemicircular, protuberant ridge; membrane above proximal flange bearing conical setae intermixed with shortened spinules and densely packed microtrichiae. Juxta bandlike. Vinculum semicircular. Phallus and sclerite of phallus shorter than valva; sclerite of phallus sigmoid-shaped; anellus broadly rounded apically, slightly wider than base, setose along apical margin. Female Genitalia ( Fig. 253 ): Apophyses posteriores more than 2 1/ 2X longer than apophyses anteriores. Eighth tergum with darkly pigmented, median longitudinal streak. Ostium bursae within sparsely microtrichiate membrane, slightly posterior to seventh segment; short, parallelsided duct, connecting with slightly dilated part of ductus bursae and ductus seminalis from common point. Posterior margin of seventh sternum shallowly emarginate laterally, forming broad, slightly protuberant, truncate, median lobe. Ductus bursae slightly longer than apophyses posteriores; with two rows of imbricate platelets within anterior 2/3, gradually becoming sparser posteriorly. Corpus bursae ovoid, spinulate throughout; signum spinate, arising from small, rounded base near middle.

Holotype, 3, “Est[ación] Cacao, 1000−1400 m, Lado SO Vol[can] Cacao, P[arque] N[aciónal] G[uanacaste], Prov[incia] Guan[acaste], COSTA RICA, C. Chaves, Jun[io] 1991, L-N-323300, 375700”, “INBio: COSTA RICA: CRI000, 623465” [barcode label], “INBio 3 Genitalia Slide by D. Adamski, No. 3186” [yellow label].

Paratypes (5 3, 3 ƤƤ): 1 3, same data as for holotype except, “Mar.”, “CRI000, 317540”, “Slide No. 3312”, “USNM 83774”; 3 ƤƤ, same data as above except, “Abr.”, “CRI000, 319417”, “Slide No. 6017”; “CRI000, 319779”, “Slide No. 6018”; “CRI000, 434742”; 2 3, “III Curso Parataxon., May. 1992 ”, “CRI000, 426528”, “Slide No. 3172”, “Wing Slide No. 7052”; “CRI000, 416820”, “Slide No. 3065”; 1 3, “ 1100 m, 8–18 Feb. 1995, M. Moraga, # 4623”, “CRI002, 185230”, “Slide No. 3237”, “USNM 83775”; 1 3, “Fca. Cafrosa, Est. Las Mellizas, P.N. Amistad, 1300 m, Prov. Punt., COSTA RICA, M. Ramirez, Mar. 1991, L-S-316100, 596100” “CRI000, 301645”, “Slide No. 3650” [6 in INBio, 2 in USNM].

Distribution (Map 6). Blastobasis caetrae is known from two distant collecting sites; one along the western most part of the Cordillera de Guanacaste in western Costa Rica and one along the eastern most part of the Cordillera de Talamanca near the border of Panama.

Etymology. The specific epithet caetrae is derived from the Latin caetra, meaning a Spanish shield.

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 69 – 74. Male genitalia of Blastobasinae. 69 – 70, Blastobasis dapis (slide 3066). 71 – 72, Blastobasis balucis (slide 3807). 73 – 74, Blastobasis caetrae (slide 3136).

FIGURES 251 – 253. Female genitalia of Blastobasinae. 251, Hallicis bisetosellus (Slide 4516). 252, Blastobasis balucis (Slide 6011). 253, Blastobasis caetrae (Slide 6017).

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.