Catharylla mayrabonillae T. Léger & B. Landry

Male (n = 17) (Fig. 7): Head with light ochreous chaetosemata. Antenna brown, with white scales dorsally and patch of dark brown scales at base. Maxillary palpus light ochreous, ringed with dark brown at 2/3; white tipped. Labial palpus: 1–1.4 mm; white, with patch of dark brown scales at 1/3 and 2/3 laterally. Thorax with patch of light ochreous scales at collar. Foreleg coxa whitish brown, femur white, dorsally ashen brown, tibia and tarsomeres ochreous, distally ringed with dark brown. Midleg femur white, tibia light ochreous, basally brown, tarsomeres II–V ochreous with tips ringed white. Hindleg white, except tarsomeres, as in midleg. Abdomen dull white. Forewing length: 7.5–8.5 mm; with apex slightly produced; costal line thin, ochreous or white in basal half, white in apical half; median transverse line ochreous, slightly undulated; subterminal transverse line ochreous; transverse lines enlarging into brown spot on costal margin with ochreous bar on costa following subterminal transverse line; terminal sector with light ochreous between veins, margin with thin, dark brown line from apex to CuA1, with two dark brown spots in cubital sector, with spot between CuA1 and CuA2 slightly displaced toward base; fringes brass colored; underside light ochreous with some brownish scales, with thin brown margin. Hindwing white with thin transverse subterminal line faded ochreous, in continuity with forewing median transverse line; outer margin line pronounced, dark brown; underside dull white with thin faded brown margin; fringes white. Tympanal organs (n=7): Transverse ridge regularly rounded, medially slightly flattened. Tympanic pockets broadly rounded, extended widely beyond transverse ridge, connected medially at base of praecinctorium. Tympanic drum bean-shaped, elongated, extended beyond tympanic pockets. Male genitalia (n = 7) (Figs 30, 31): Uncus thick and wide, about 2/5 length of tegumen arms, densely setose, with shortly projecting apex dorsally rounded. Gnathos reaching about 1/4 longer than uncus; arms wide, joining at 2/5 of length; distal 2/5 at angle of about 85°. Tegumen almost regularly narrow, joined in last 1/4. Cucculus narrow, shorter than sacculus, apically rounded; sacculus greatly enlarged, thickly sclerotized, directed upward, then apically straight, slightly narrowing toward apex, laterally with string of short spines and 2–3 longer basal spines pointing downward; costal arm of valva directed upward, located at about 1/3 of costal margin, thin, strongly sclerotized, slightly curved. Vinculum arms narrow; saccus short and wide, tongue shaped, projecting posterad apically. Juxta elongate, distal 1/4 narrowed with rounded tip; wide base with ear-like lobes laterally and baso-lateral angle projected anterad. Phallus slightly bent sideways in distal 1/4, with trifid sclerotized apex rounded medially and shortly triangular laterally; vesica basally covered with tiny spicules, microspicules barely visible all along, with long spine-like, down-curved cornutus of about 2/5 length of phallus. Female (n = 37): Labial palpi length: 1.1–1.3 mm. Forewing length: 9.5–10.5 mm; frenulum triple. Female genitalia (n = 16) (Fig. 40): Papillae anales strongly curved in lateral view; sclerotized line along papillae expanding ventrally into triangle. Posterior apophyses 0.35–0.45 × length of papillae anales. Tergite VIII about 1/3 length of sternite VIII; postero-dorsal margin with few setae of moderate length; anterior apophyses 0.03–0.1 × papillae anales; sternite VIII with patches of minute setae antero-ventrally on each side of bare median band. Sterigma forming double rounded cavities with mustachio-shaped arrangement of short spines (in ventral view); remaining cavity wall with tiny spines. Ductus bursae short and wide, enlarged near middle; partly sclerotized on right side of enlargement and posterior section. Corpus bursae circular to elongate, about as long as tergite VII; single signum faintly pronounced.

The species has been found so far in Panama, Costa Rica, Colombia, Venezuela, Guyana, Suriname, French Guiana, Ecuador, Peru and Brazil (Acre, Amazonas, Distritò Federal, Pará, Rondônia) (Fig. 44). It is the most widespread species of Catharylla and the only one so far found in Central America and in Venezuela, Columbia, Ecuador and Peru.