(Figs. 219–221, 360, Map 40)

Diagnosis.— Glyphidocera harenae is most similar to G. crepidae but differs from the latter by having an abdomen with more rows of sex scales between terga 2–3 in male, a complete dorsal strut of tegumen, a longer valva, costal furcae of valva near parallel, and vesica of aedeagus without spinelike cornuti.

Description.— Head: Scales on vertex and frontoclypeus brown tipped with pale brown; outer surface of labial palpus brown intermixed with pale­brown scales to apical margin of segment II, inner margin pale brown intermixed with few brown scales; scape brown intermixed with few pale­brown scales, flagellum with alternating bands of brown and pale­brown scales; male 4 th flagellomere dorsally protuberant and curved, forming a deep concavity opposite slightly excavated flagellomeres 5–6; concavity nearly closed by a few setiform scales on apex of protuberance of 4 th flagellomere; proboscis pale brown.

Thorax: Tegula and mesonotum brown. Legs brown intermixed with few pale­brown scales to apical margins of all segments and tarsomeres. Forewing (Fig. 360): Length 5.0– 6.1 mm (n = 3), brown intermixed with few pale­brown scales; cell with 1 faint, brown spot near distal end. Undersurface brown. Hindwing: Brown.

Abdomen (Fig. 219): Male with 4 transverse, irregular rows of sex scales on intersegmental membrane between terga 2–3.

Male Genitalia (Figs. 220–221): Uncus elongate, broadly constricted near 1 / 3, gradually widened apically, apex narrowly rounded and setose; gnathos sparsely setose, protuberant, wide throughout length, upturned apically; tegumen slightly widened basally; dorsal strut with arms convergent, fusing medially from posteroventral margin, extending dorsally to midlength, gradually widening to base of uncus; valva with costa gradually upturned broadly from a shallow depression beyond a slanted, basal, digitate process to a raised dorsal furca; apex bifurcate, furcae large, widely divergent, parallel; sacculus twisted apically constricting valva near midlength, widening distoventrally, forming a broadly rounded cucullus; cucullus membranous and setose; vesica of aedeagus densely denticulate, bearing a large, sickle­shaped, apical cornutus; cornutus with one side slightly shortened, exposing a hollow, basal cavity.

Female Genitalia: Unknown.

Holotype, ɗ, “Est[ación] Sirena, P[arque] N[acional] Corcovado, 0–100 m, Prov[incia] Punt[arenas], COSTA RICA, G. Fonseca, Mar. 1991, L­S­ 270500, 508300 ”, “ INBio: COSTA RICA: CRI 000, 447830 ” [bar code label], “ INBio, ɗ Genitalia Slide by D. Adamski, No. 799 ” [yellow label].

Paratypes (2 ɗ): Same label data as holotype except, “ Mar. 1992 ”, “ CRI 000, 780697 ”, “Slide No. 792 ”; “ CRI 000, 621786 ”, “Slide No. 801 ”, (1 in INBio, 1 in USNM).

Distribution (Map 40): Glyphidocera harenae is known from one coastal collecting site in south­eastern Costa Rica, south of the Osa Peninsula.

Etymology: The species epithet harenae is derived from the Latin “harena,” meaning sand.