Pigritia stips Adamski

Adamski, David, 2013, Review of the Blastobasinae of Costa Rica (Lepidoptera: Gelechioidea: Blastobasidae), Zootaxa 3618 (1), pp. 1-223 : 150-151

Pigritia stips Adamski , new species

( Figs. 49 , 243–244 , 413 , Map 54)

Diagnosis.— Pigritia stips shares with the North American P. laticapitella Clemens a short labial palpus; the absence of the uncus and gnathos; a hinged apical process of the ventral part of the valva; a narrow digital process of the dorsal part of the valva; an elongate and densely setose proximal flange of the dorsal part of the valva; and a divided juxta. P. stips differs from the latter by having a smaller apical process of the ventral part of the valva; a smaller and more sparsely setose proximal flange; a shorter phallus and sclerite of phallus; an anellus that is apically bifurcate, fused with sclerite of phallus, forming two sparsely setose lateral and subequal plates; and a vesica with a cornutus that is laterally barbed.

Description.—Head: Vertex and frontoclypeus scape pale brown. Labial palpus in male, extending about 1/2 distance between ventral margin of frontoclypeus and antennal base within a depression on ventral part of frontoclypeus [female unknown]; outer and inner surfaces pale gray. Antenna pale brown. Proboscis pale gray.

Thorax: Tegula and mesonotum pale gray intermixed with few gray scales tipped with pale gray. Legs brown intermixed with pale-brown scales near midsegments and along apical margins of all segments and tarsomeres. Forewing ( Fig. 413 ): Length 4.2–4.9 mm (n = 5), with brown scales tipped with pale-brown intermixed with palebrown scales or pale brown intermixed with brownish-orange scales; basal 1/3 paler than apical 2/3, delineated by a narrow, transverse, pale-brown line; cell with two spots on apical end along crossvein. Undersurface brown. Venation ( Fig. 49 ) with M2 and M3 stalked in series from a common point with CuA1 on distoposterior part of cell; cubital veins divergent from bases with CuA1 straight and CuA2 broadly curved. Hindwing: Translucent pale brown gradually darkening to apex. Venation ( Fig. 49 ) with cell open; cubitus 3-branched with all veins arising submarginally.

Abdomen: Male genitalia ( Figs. 243–244 ): Uncus reduced to slightly raised lobe. Gnathos absent. Sockets of tergal setae not extending beyond midlength of tegumen. Valva divided; ventral part broadened basally, apicoventrally angular, broadly rounded to base of apical process; process hinged basally, straight, with protuberant setose ridge at base; dorsal part with apical portion of costa extending dorsally, forming setose digitate process; process slightly curved inwardly from 1/2; basal ridge of digitate process separate from proximal flange; flange, angular, slightly protuberant, gradually widening from narrowed base, setose; margin entire ventrally, crenulate dorsally and dorsolaterally. Juxta divided, forming two subtriangular plates. Vinculum shallowly semicircular. Phallus and sclerite of phallus longer than valva; phallus bulbous basally; sclerite of phallus slightly curved basally, deeply bifurcate apically; anellus deeply bifurcate apically, fused with sclerite of phallus, forming two sparsely setose, subequal plates; larger plate with apically bifurcate projection exdending from basal margin; vesica with an elongate, laterally barbed cornutus. Female Genitalia: Unknown.

Holotype, 3, “F[in]ca Jenny, 30 km N de Liberia, P[arque] N[acional] Guanacaste, Prov[incia] Guan[acaste], COSTA RICA, R. Espinoza, Jun[io] 1991, L-N-316200, 364400, “INBio: COSTA RICA: CRI000, 324047 [barcode label], “INBio, 3 Genitalia Slide by D. Adamski, No. 2446 [yellow label].

Paratypes (4 3): 1 3, Est. Las Pailas, P.N. Rincón de la Vieja, 800 m, Prov. Guanacaste, COSTA RICA, 21 a 30, Nov. 1992, D. Garcia, L-N-306300, 388600, “CRI000, 818625, “Slide No. 2106; 1 3, 10–13 Mar. 1994, D. Garcia, # 2767, CRI001, 738491, Gen. Slide No. 2133, Wing Slide No. 7028; 1 3, Est. Maritza, 600 m, Volcan Orosi, Prov. Guanacaste, COSTA RICA, I Curso Microlepidoptera, Jul. 1990, L-N-326900, 373000, CRI000, 181391, “Slide No. 2525, “USNM 84104; 1 3, “Est. Cacao, 1000–1400 m, Lado SO Vol. Cacao, P.N. Guanacaste, COSTA RICA, D. Brenes, 21 a 29 May 1992, L-N-323300, 375700, CRI000, 488056, “Slide No. 2342, “USNM 84105 [2 in INBio, 2 in USNM].

Distribution (Map 54). Pigritia stips is known from four collecting sites along the western most part of the Cordillera de Guanacaste in northwestern Costa Rica.

Etymology. The specific epithet stips is derived from the Latin meaning, a small coin.

MAP 54. Distribution of Pigritia stips (●) and P. gruis (˔).

Figures

FIGURES 41 – 50. Wing venation of Blastobasinae. 41, Hypatopa umbra (slide 7003). 42, Hypatopa texo (slide 7023). 43, Hypatopa solea (slide 7031). 44, Hypatopa bilobata (slide 7030). 45, Hypatopa rabio (slide 7022). 46, Pigritia dido (slide 83503). 47, Pigritia faux (slide 7027). 48, Pigritia haha (slide 7029). 49, Pigritia stips (slide 7028). 50, Pigritia marjoriella Adamski, 1998 (USNM Slide 83228).

FIGURES 243 – 248. Male genitalia of Blastobasinae. 243 – 244, Pigritia stips (slide 2446). 245 – 246, Pigritia gruis (slide 2473). 247 – 248, Pigritia ululae (slide 2536).

FIGURES 412 – 416. Imagos of Blastobasinae. 412, Pigritia haha, holotype. 413, Pigritia stips, holotype. 414, Pigritia gruis, holotype. 415, Pigritia ululae, holotype. 416, Pigritia marjoriella Adamski, 1998.