(Figs. 93–95, 318, Map 18)

Diagnosis.— Glyphidocera brumae is similar to G. dictionis but differs from the latter by having a larger uncus, a longer apical furca of the valval costa, and a straight outer margin of the cucullus of the valva.

Description.— Head: Vertex and frontoclypeus grayish yellow intermixed with few dark­brown scales laterally; outer surface of labial palpus dark brown intermixed with brownish­yellow scales to margin of segment II, inner margin pale brownish yellow intermixed with few dark­brown scales; scape of antenna brownish yellow intermixed with few dark­brown scales, flagellum with alternating pale brownish­yellow and pale­brown bands; 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 brownish yellow.

Thorax: Tegula and mesonotum pale brownish yellow. Legs grayish yellow intermixed with few dark­brown scales, grayish yellow along apical margins of all segments and tarsomeres or dark brown intermixed with few pale brownish­yellow scales to near apical margins of all segments and tarsomeres. Forewing (Fig. 318): Length 6.0–7.0 mm (n = 21), grayish yellow intermixed with few dark­brown scales; cell with 2 large, dark­brown spots, 1 near middle, 1 near distal end; one small spot on CuP posterior to midcell spot; marginal spots present or absent. Undersurface brown except, brownish yellow along costa. Hindwing: Pale gray.

Abdomen (Fig. 93): Male with 3 transverse, irregular rows of sex scales on intersegmental membrane between terga 2–3, and two elliptical­shaped clusters of sex scales on dorsolateral surface of intersegmental membrane between terga 3–4.

Male Genitalia (Figs. 94–95): Uncus elongate, wide at base, constricted broadly near midlength, widely rounded distally, tapering to rounded and setose apex; gnathos protuberant, distally upturned; tegumen slightly widened basally; dorsal strut with arms convergent medially, fused from posteroventral margin to base of uncus; costa of valva slightly broadly emarginate from a shallow depression beyond a slightly curved, digitate process to a slightly raised subapical part; apical furca acuminate, slightly upturned; sacculus twisted apically, constricting valva near midlength, widened distally forming an elongate and narrow cucullus; cucullus membranous and setose with a nearly truncate outer margin; vesica of aedeagus sparsely denticulate, bearing an apical cornutus; cornutus as wide as long, with one side shortened, exposing a wide and hollow, basal cavity.

Female Genitalia: Unknown.

Holotype, ɗ, “ COSTA RICA, Heredia, Est[ación] Biol[ógica] La Selva, 50–150 m, 10 ° 26 'N, 84 °01'W, Nov. 1993, INBio­OET” “ 16 Noviembre 1993, Lab clearing, L/04/ 085”, “ INBio: COSTA RICA: CRI 001, 258476 ” [bar code label], “ INBio, ɗ Genitalia Slide by D. Adamski, No. 872 ” [yellow label].

Paratypes (20 ɗ): 1 ɗ, Same label data as holotype except, “ 16 Noviembre 1993, Arboleda, L/05/087”, “ CRI 001, 240910 ”; 1 ɗ, “ 16 Ene. 1993, Bosque primario, L0014”, “ CRI 001, 219886 ”; 4 ɗ, “ 28 Junio 1994, Lab area, L/04/ 106 ”, “ CRI 001, 243680 ”; “ 30 Junio 1994, Lab area, L/04/ 110 ”, “ CRI 001, 243770 ”; “ 27 Junio 1994, Arboleda, L/05/ 105 ”, “ CRI 001, 244167 ”; “ 28 Junio 1994, Bosque primario, L/006/ 107 ”, “ CRI 001, 243967 ”; 1 ɗ, “ 2 Julio 1994, Lab area, L/04/ 114 ”, “ CRI 001, 244272 ”; 1 ɗ, “ 4 Marzo 1996, L/05/ 174, Arboleda”, “ CRI 001, 250689 ”; 1 ɗ, “ 6 Feb. 1996, Arboleda, L/05/ 124 ”, “ CRI 001, 249819 ”; 2 ɗ, “ 8 Feb. 1996, L/05/ 130, Arboleda”, “ CRI 002, 058654”, “ CRI 002, 058643”; 1 ɗ, “ 12 Feb. 1996, L/05/ 141, Arboleda”, “ CRI 002, 058754”; 2 ɗ, “ 19 Feb. 1996, L/05/ 159, Arboleda”, “ CRI 001, 250067 ”, “ CRI 001, 250062 ”; 1 ɗ, “ 6 Feb. 1996, Biblioteca, L/04/ 122 ”, “ CRI 001, 249720 ”; 1 ɗ, “ 18 Feb. 1996, L/04/ 156, Biblioteca”, “ CRI 001, 258374 ”; 1 ɗ, “ 17 Feb. 1996, L/04/ 153 ”, “ CRI 002, 058854”; 2 ɗ, “ 22 Abril 1996, L/04/ 220, Biblioteca”, “ CRI 002, 060993 ”, “L/05/ 222, Arboleda”, “ CRI 002, 060719 ”; 1 ɗ, “ 19 Marzo 1996, L/04/ 188 ”, “ CRI 001, 257392 ”, (14 in INBio, 6 in USNM).

Distribution (Map 18): Glyphidocera brumae is known from one collecting site in north­central Costa Rica north of the Cordillera Central.

Etymology: The species epithet brumae is derived from the Latin “bruma,” meaning winter solstice.