90 U.S. NATIONAL MUSEUM BULLETIN 244 



broadly bipectinate, gradually tapering to apex. Foretibia (fig. 180) 

 without epiphysis; legs not spurred. 



Wings (fig. 163) rounded, uniformly, very thinly scaled, translucent; 

 usually 10- and 7-veined. Primaries with radial, medial veins all 

 separate; base of medius undivided within cell, vestigial branch 

 sometimes faintly observed; lA mostly obsolete, faint vestige curving 

 down to join 2A; 2A and 3A united near base of wing, fused for some 

 distance, 3 A separating again as spur along hindmargin. Secondaries 

 Sc+Ri uniting with Rs just before apex of cell, separating again as 

 very short spur to costal margin; Mi absent; M2 and M3 separate; base 

 of M undivided. 



Male genitalia. — Relatively broad, apex of tegumen evenly 

 rounded. Valves with pulvilli prominent, minutely spined; apex of 

 sacculus with small spines. Vinculum gradually narrowing to mod- 

 erately long saccus. Aedeagus simple, without expanded base. 

 Eighth sternite (fig. 219) with relatively long, slender furcal arms. 



Female. — Unknown. 



Discussion. — The sole species of this genus, Coloneura fragilis, 

 represents an insect that diverges greatly from moths of the genus 

 Apterona as typified by A. crenulella, and so the species has required a 

 new generic placement. Coloneura fragilis, with its broadly bipectinate 

 antennae and relatively unique venation, contrasts sharply with A. 

 crenulella, which possesses simple antennae and very different vena- 

 tion in both the fore- and hindwings. Further, these two groups differ 

 considerably in genitahc characters and in leg structure: Apterona has 

 shorter, stoclder tarsal segments. 



The unique and extremely short subcostal vein in the hindwing of 

 C. fragilis has suggested the name ''Coloneura" for this genus. 



33. Coloneura fragilis (Barnes and McDunnough), new combination 



Figures 31, 163, 180, 219, 275, 275a, 345, 378; Map 1 



Apterona fragilis Barnes and McDunnough, Contr. Nat. Hist. Lep. N. Amer., 

 vol. 3, no. 1, p. 34, pi. 3; fig. 21, 1916.— Barnes and McDunnough, Check 

 List Lep. Boreal Amer., no. 4808, 1, 1917. — Dyar, Insec. Inscit. Menst., vol. 

 11, p. 5, 1923. — Dalla Torre and Strand, Lep. Cat., pars 34, p. 105, 

 1929.— McDunnough, Check List Lep. Canada and USA, pt. 2, no. 9537, 1939. 



Rebelia fragilis (Barnes and McDunnough) Dalla Torre and Strand, Lep. Cat., 

 pars 34, p. 76, 1929. 



Cochliotheca fragilis (Barnes and McDunnough) Gaede in Seitz, Macrolep. World, 

 vol. 6, p. 1179, pi. 169b, 1936. 



Male. — (Fig. 31.) Head and thorax sparsely clothed with long, 

 whitish hair. Antennae (fig. 370) 17- to 18-jointed, pectinations long, 

 slender, arising mesad from each segment. Abdomen only sUghtly 

 surpassing posterior margin of secondaries. Scales of both wings 



