Pheos aculeatus Adamski

Adamski, David, 2013, Review of the Blastobasinae of Costa Rica (Lepidoptera: Gelechioidea: Blastobasidae), Zootaxa 3618 (1), pp. 1-223 : 10-11

Pheos aculeatus Adamski , new species

( Figs. 55–56 , 314 , Map 2)

Diagnosis.— Pheos is monotypic, and the single included species, P. aculeatus , can be distinguished from other Blastobasinae by the features listed in the description and diagnosis of the genus.

Description.—Head: Vertex, frontoclypeus pale brown. Outer surface of labial palpus pale brown intermixed with few brown scales on first and second segments, inner surface pale brown. Antennal scape pale brown intermixed with few brown scales, pecten brown, flagellum pale brown; fiest flagellomere unmodified in male. Proboscis pale brown.

Thorax: Tegula and mesonotum pale brown. Legs brown intermixed with pale-brown scales near segments and along apical margins of all segments and tarsomeres. Forewing ( Fig. 314 ): Length 5.9–6.5 mm (n = 3), pale brownish yellow intermixed with few brown scales; submedian fascia faint or absent; discal spots present or absent, cell with two brown spots, one spot near middle, one spot on apical end along crossvein. Undersurface brown in area from costa to cubitus, pale brown from cubitus to posterior margin. Hindwing: Translucent pale brownish yellow gradually darkening to apex.

Abdomen: Male genitalia ( Figs. 55–56 ): Uncus, gradually narrowed from widened base, rounded apically, acutely curved ventrally from subapical region, sparsely setose, shorter than width of anal opening. Dorsal strut absent. Gnathos, a wide band confluent with tegumen, posteroventral margin slightly raised mesially, narrowly emarginate. Sockets of tergal setae extending beyond midlength of tegumen. Distance between articulations of tegumen and vinculum longer than length of valva. Valva divided; ventral part broadly rounded ventrally, abruptly narrowed apically forming an elongate, inwardly directed, spinelike process; spinelike process fused basally with second, shorter, ventrally directed (near 90°), spinelike process bearing small, setose cluster near base; lobelike basal articulation finely setose; dorsal part with apical portion of costa extending dorsolaterally from near base, forming digitate process; basal ridge of digital process protracted ventrally fusing with dorsolateral ridge of proximal flange; proximal flange subquadrate, bearing three spinelike setal clusters, one along lateral margin, one along ventral margin, and one along ventromesial margin. Phallus and sclerite of phallus longer than valva; phallus and sclerite of phallus broadly curved near middle, abruptly curved subapically; anellus apically notched, setose on basal 2/3. Female Genitalia: Unknown.

Holotype, 3, “F[in]ca Cafrosa, Est[ación] Las Mellizas, P[arque] N[acional] Amistad, 1300 m, Prov[incia] Punt[eranas], COSTA RICA, M.M. Chavarria & G. Mora, Ene [io] 1991, L-S-316100, 596100”, “INBio: COSTA RICA: CRI000, 539412” [barcode label], “INBio 3 Genitalia Slide by D. Adamski, No. 2617” [yellow label]. Paratypes (2 3): 1 3, same data as for holotype except,“CRI000, 539484”, “Slide No. 2615”, “USNM 83880”; 1 3, “CRI000, 380615”, “Slide No. 2616” [1 in INBio, 1 in USNM].

MAP 2. Distribution of Pheos aculeatus (●) and Hallicis bisetosellus (˔).

Distribution (Map 2). Pheos aculeatus is known from one collecting site along the eastern most part of the Cordillera de Talamanca near the western border of Panama.

Etymology. The specific epithet is derived from the Latin aculeatus meaning provided with prickles and stings, and refers to the many spinelike setae and spinelike processes of the valva of the male genitalia.

Figures

FIGURES 51 – 56. Male genitalia of Blastobasinae. 51 – 2, Koleps angulatus (slide 2731). 53 – 54, Pseudokoleps akainae (slide 2086). 55 – 6, Pheos aculeatus (slide 2617).

FIGURES 312 – 319. Imagos of Blastobasinae. 312, Koleps angulatus, holotype. 313, Pseudokoleps akainae, holotype. 314, Pheos aculeatus, holotype. 315, Hallicis bisetosellus, holotype. 316, Hallicis clavicula, holotype. 317, Barbaloba meleagrisellae, holotype. 318, Barbaloba jubae, holotype. 319, Blastobasis paludis, holotype.