Blastobasis dicionis Adamski

Adamski, David, 2013, Review of the Blastobasinae of Costa Rica (Lepidoptera: Gelechioidea: Blastobasidae), Zootaxa 3618 (1), pp. 1-223 : 74-76

Blastobasis dicionis Adamski , new species

( Figs. 25 , 133–134 , 260 , 310 , 353 , Map 24)

Diagnosis.— Blastobasis dicionis is similar to B. beo in facies but differs from the latter by having a longer uncus; a narrower ventral part of the valva; a narrower proximal flange of the dorsal part of the valva; and a more acutely curved and more densely setose anellus.

Description.—Head: Scales on vertex and frontoclypeus brownish gray tipped with pale brownish gray. Outer surface of labial palpus grayish brown intermixed with pale grayish-brown scales along apical margin of segment 2, inner surface pale grayish brown. Antennal scape and pecten with brownish-gray scales tipped with pale brownish gray, flagellum gray; first flagellomere in male dilated, inner surface of dilated part with 21 palmate sex scales (n=1), ( Fig. 310 ). Proboscis pale brownish gray.

MAP 24. Distribution of Blastobasis dicionis (●) and B. beo (˔).

Thorax: Tegula and mesonotum with scales brownish gray tipped with pale brownish gray. Legs brownish gray intermixed with pale brownish-gray scales near midsegments and along apical margins of all segments and tarsomeres. Forewing ( Fig. 353 ): Length 5.0–7.0 mm (n = 16), brownish gray intermixed with brownish-gray scales tipped with pale brownish gray and pale brownish-gray scales; base dark gradually or abruptly brightening to submedian fascia, or brownish gray if submedian fascia absent; cell with three spots, one near middle, two on apical end along crossvein; marginal spots present or absent. Undersurface brown. Venation ( Fig. 25 ) with M3 closer to M2 near basal 1/2 than distance between M3 and CuA1 near basal 1/2; cubital veins divergent from bases; CuA1 straight, CuA2 curved basally. Hindwing: Translucent pale brown gradually darkening to apex. Venation ( Fig. 25 ) with cell closed; cubitus 4-branched with all veins arising submarginally from cubitus.

Abdomen: Male genitalia ( Figs. 133–134 ): Uncus slightly narrowed from base, narrowly rounded apically, slightly downcurved, sparsely setose, longer than width of anal opening. Dorsal strut of tegumen narrow, fusing with base of uncus. Gnathos wide, confluent with tegumen, posteroventral margin slightly protracted mesially, bidentate. Sockets of tergal setae extending to near midlength of tegumen. Valva divided; ventral part broadly curved dorsolaterally from beyond base, narrowed apically, forming inwardly curved spinelike process; process setose on outer surface, planate on inner surface; ventral margin setose from 1/6, slightly upturned, forming narrow fold, extending to near a slightly raised setose lobe at base of apical process; dorsal part with apical portion of costa extending dorsolaterally, forming setose digitate process; digitate process slightly curved inwardly; area beneath costa overlaid by membrane with densely packed microtrichiae, 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 cleft basally, extending ventrolaterally, forming broadly rounded ridge; proximal flange bearing numerous hairlike setae intermixed with sparse microtrichiae. Juxta bandlike. Vinculum semicircular. Phallus and sclerite of phallus shorter than valva, both abruptly curved at 2/3; anellus slightly widened near midlength, broadly rounded apically, setose along lateral margins. Female Genitalia ( Fig. 260 ): Apophyses posteriores nearly 3 1/ 3X longer than apophyses anteriores. Ostium bursae within sparsely microtrichiate membrane, slightly posterior to seventh segment. Posterior margin of seventh sternum entire; inception of ductus seminalis on anterior end of dilated part of ductus bursae, slightly posterior to anterior margin of seventh sternum. Ductus bursae about equal in length to apophyses posteriores, with two rows of imbricate platelets within anterior 1/3, gradually becoming sparser posteriorly. Corpus bursae elongate, sparsely spinulate, with slightly dilated bulla on posterior end; signum spinate, arising from small, rounded base near middle.

Holotype, 3, “F[in]ca Jenny, 30 km N Liberia, P[arque] N[acional] Guanacaste, Prov[incia] Guan[acaste], COSTA RICA, E. Araya & R. Espinosa, Set[iembre] 1990, L-N-316200, 364400, “INBio: COSTA RICA: CRI000, 498321 [barcode label], “INBio 3 Genitalia Slide by D. Adamski, No. 3470 [yellow label].

Paratypes (15 3, 8 ƤƤ): 4 3, 4 ƤƤ same data as for holotype except, “CRI000, 498310, “Slide No. 3469, “USNM 83867; “CRI000, 227308, “Slide No. 3591, “USNM 83868; “CRI000, 227363, “Slide No. 3486, “USNM 83869; “CRI000, 227327, “Slide No. 3485, “Wing Slide No. 7039; “CRI000, 227339, “Ƥ Slide 6009; “CRI000, 226847, “Ƥ Slide No. 6007; “CRI000, 227318; “CRI000, 227320; 5 3, 4 ƤƤ, “Ago., “CRI000, 614898, “Slide No. 3441; “CRI000, 615004, “Slide No. 3440; “CRI000, 614936, “Slide No. 3444; “CRI000, 614950, “Slide No. 3445, “USNM 83870; “CRI000, 226798, “Slide No. 3447, “USNM 83871; “CRI000, 226849, “Slide No. 6008; “CRI000, 226813; “CRI000, 615059; “CRI000, 615045; 2 3, “R. Espinoza, Jul. 1991, “CRI000, 332229, “Slide No. 3563; “CRI000, 332282, “Slide No. 3438; 2 3, “Las Pailas, 800 m, P.N. Rincón de la Vieja, Prov. Guanacaste, COSTA RICA, 23 Oct.-12 Nov. 1992, D. Garcia, L-N-306300, 388600, “CRI000, 863329, “Slide No. 3294; “CRI000, 926877, “Slide No. 3427, “USNM 83872; 1 3, 24 Oct.-12 Nov. 1992, “CRI000, 946575, “Slide No. 3308; 1 3, “Est. Sta. Rosa, 300 m, P.N. Guanacaste, Prov. Guan., COSTA RICA, I Curso Microlepidoptera, Jul. 1990, L-N-313000, 359800, “CRI000, 306862, “Slide No. 3481, “USNM 83873 [16 in INBio, 7 in USNM].

Distribution (Map 24). Blastobasis dicionis is known from three collecting sites in northwestern Costa Rica; one on the Cordillera de Guanacaste, and two from the dry-forest area.

Etymology. The specific epithet dicionis is derived from the Latin dicio meaning, authority, power, or control.

Figures

FIGURES 21 – 30. Wing venation of Blastobasinae. 21, Blastobasis vesta (slide 7051). 22, Blastobasis nivis (slide 7048). 23, Blastobasis phaedra (slide 7042). 24, Blastobasis aedes (slide 7050). 25, Blastobasis dicionis (slide 7039). 26, Hypatopa cladis (slide 7005). 27, Hypatopa juno (slide 7033). 28, Hypatopa pica (slide 7014). 29, Hypatopa hecate (slide 7015). 30, Hypatopa crux (slide 7035).

FIGURES 129 – 134. Male genitalia of Blastobasinae. 129 – 130, Blastobasis rotae (slide 3506). 131 – 132, Blastobasis manto (slide 4036). 133 – 134, Blastobasis dicionis (slide 3470).

FIGURES 260 – 262. Female genitalia of Blastobasinae. 260, Blastobasis dicionis (Slide 6007). 261, Hypatopa pica (Slide 4514). 262, Hypatopa hecate (Slide 4517).

FIGURES 308 – 311. Male sex scales on first flagellomere of Blastobasis. 308, Blastobasis rotae. 309, Blastobasis manto. 310, Blastobasis dicionis. 311, Blastobasis beo.

FIGURES 352 – 359. Imagos of Blastobasinae. 352, Blastobasis manto, holotype. 353, Blastobasis dicionis, holotype. 354, Blastobasis beo, holotype. 355, Hypatopa nex, holotype. 356, Hypatopa cladis, holotype. 357, Hypatopa juno, holotype. 358, Hypatopa actes, holotype. 359, Hypatopa cotis, holotype.