Porphyrogenes spina Austin and Mielke, new species
(Fig. 97, 98, 131, 150)
Description. Male (Fig. 97, 98) - forewing length = 22.8 mm, 23.2 mm (both from Panama); fore-
wing with costal fold, apex slightly produced, pointed, termen and anal margin nearly straight; hindwing
termen nearly straight, tornus produced to short lobe, vein Rs arising nearer to end of discal cell than to
its base and well distad of CuA2 (Fig.
131); dorsum brown, unmarked; forewing overscaled with ochreous-
olive heaviest basad, anal margin with sparse tuft proximad; hindwing overscaled with ochreous-olive
posterior to vein Rs; shining gray speculum in anterior discal cell (as small area), proximal 1/2 of Sc+R1-
Rs, and entire costal cell; very short and small gray recumbent tuft near base of Sc+R1-Rs, similarly short
but much thicker semierect gray tuft arising from near base of discal cell covering speculum in discal
cell, curving anteriorly and, with anterior tuft, covering base of speculum in Sc+R1-Rs (Fig. 131); con-
spicuous erect ochreous-olive tuft along anterior edge of vein 2A, recumbent pale tan tuft from posterior
edge of 2A; fringes on both wings gray-brown.
Venter brown; forewing vein 2A weakly sinuate, bare and moderately swollen in central 1/3 (Fig.
131); shining gray-tan speculum in proximal 1/2 of CuA2-2A (continued to about 3/4 distance to termen as
modified brown scales) and in entire anal cell; hindwing with no indication of discal macules; cell 2A-3A
with deep groove just caudad of vein 2A.
Dorsal head and thorax ochreous-olive, palpi pale gray, eyes red, antennae black, yellow on venter
distad and beneath apiculus, nudum red-brown, 30 (n = 1) or 31 (n = 1) segments, ventral thorax gray-
brown, pectus brown with much green anteriorly, legs brown proximad, ochreous-brown distad, dorsal
abdomen brown, overscaled with ochreous-olive, ventral abdomen warm brown, some greenish anteriorly.
Genitalia (Fig. 150) - tegumen narrow in lateral view, broad and nearly round in dorsal view, very
long and relatively broad dorso-caudal oriented process from each side of caudal end, tuft double and
dense; uncus nearly straight in lateral view, divided in dorsal view, arms very widely spaced, long and
thin, ventral process of uncus very thin; gnathos shorter than uncus, terminal ends rounded in ventral
view; combined ventral arms from tegumen and dorsal arms from saccus curved; saccus very broad,
short, oriented dorso-cephalad; valva with costa-ampulla more or less rhomboidal, harpe long, relatively
broad cephalad, curving evenly upward to broader and finely (but densely) dentate caudal end oriented
nearly dorsad, dentate projection proximad of caudal end dorsad; aedeagus shorter than valva, broad with
flaring caudal end; cornuti as three rows each of multiple relatively short, slightly curved, and thin
Female - unknown.
Types. Holotype male with the following labels: white, printed and handprinted - / PANAMÁ: Canal
Zone / Gamboa / x.18.78 / Gordon B. Small /; white, printed and handprinted - / Genitalic Vial / GTA -
8905 /; red, printed - / HOLOTYPE / Porphyrogenes spina / Austin & Mielke /. Deposited at the National
Museum of Natural History, Washington, DC. Paratype male - PANAMÁ: Panamá Prov., Distrito de El
Llano, Cordillera de San Blas, north of El Llano, ca. 330m, 10 May 1978 (GTA #8904, deposited at
Type locality. PANAMÁ: Canal Zone; Gamboa.
Etymology. The name means spine and refers to the spine-like serrations of the harpe.
Distribution and phenology. The species is known only from the types taken in Panama during
May and October.
Diagnosis and discussion. Porphyrogenes spina is similar to a species to be described below and is
distinguished in the discussion of that species. This species is also somewhat similar to P. spoda, but the
genitalia are very different, the tufts are gray (red-brown on P. spoda), the swollen portion of vein 2A is
shorter than on P. spoda, and P. spina is not as reddish brown.