NO. 3561 LOXOSTEGE—CAPPS 53 
Eurycreon evanidalis Berg, 1875, Deutsche Ent. Zeit., vol. 19, p. 134.— Gundlach, 
1890, Ann. Soc. Espafiola Hist. Nat., vol. 20, p. 348. 
Eurycreon obsoletalis Berg, 1875, op. cit., p. 135. 
Eurycreon evanadalis [sic] Berg—Moschler, 1890, Abh. Senck. Ges., vol. 16, p. 
290. 
Eurycreon bifidalis (Fabricius)—von Hedemann, 1894, Stettiner Ent. Zeit., 
vol. 55, p. 286; 1896, ibid., vol. 57, p. 3. 
Phlyctaenodes bifidalis (Fabricius)—Hampson, 1899, Proc. Zool. Soc. London, 
p. 210.— Wolcott, 1923, Journ. Dept. Agric. Puerto Rico, vol. 7, p. 192. 
Lozostege bifidalis (Fabricius).—Fernald, 1903, in Dyar, U.S. Nat. Mus. Bull. 
52, p. 383.—Barnes and McDunnough, 1917, Checklist of the Lepidoptera 
of boreal America, p. 131.—McDunnough, 1939, Southern California Acad. 
Sci. Mem., vol. 2, no. 1, p. 12.—Schaus, 1940, Scientific survey of Porto 
Rico and the Virgin Islands, vol. 12, pt. 3, p. 368.—Amsel, 1956 (1954), Bol. 
Ent. Venezolana, vol. 10, p. 249. 
Loxostege stolidalis Schaus, 1940, Scientific survey of Porto Rico and the Virgin 
Islands, vol. 12, pt. 3, p. 368. [New synonymy.] 
Mate (fig. 164).—Alar expanse 20-24 mm. Frons conical. 
Antenna pubescent. Midtibia but slightly thicker than hind tibia; 
hair-pencil absent. Outer spur one-half as long as inner spur. 
Forewing: ground color pale buff, somewhat glossy; markings brownish, 
obsolescent, diffuse. Hindwing slightly paler than forewing, without 
markings except for thin terminal line. Fringe of both fore- and 
hindwings pale buff. 
Genitalia (fig. 54): Uncus terminating in a sharp point. Harpe 
with cluster of strong, slender, nondigitate setae from oblique modi- 
fication; hooklike sclerotization spinulate distally; production of 
dorsal margin of sacculus truncate. Aedeagus with numerous strong, 
spinelike cornuti, variable in number and shape. 
Femate (fig. 165).—Alar expanse 20-23 mm. Similar to male in 
color and maculation but with the markings stronger and often 
more fuscous. Genitalia (fig. 98): ostial margins membranous; 
ductus bursae strongly sclerotized from slightly below ostium to 
slightly beyond midpoint between ostium and origin of ductus semi- 
nalis, somewhat constricted near middle, with upper element spinulate, 
lower element smooth, broad, collarlike; ductus bursae membranous, 
nonpigmented from collar to origin of ductus seminalis; ductus 
seminalis strongly sclerotized and curved, hooklike at origin. 
Larva.—Mature, 24-27 mm. long. Resembles rantalis but differs 
from it as follows: posterolateral extension of prothoracic shield 
behind and under spiracle, and fusion with prespiracular shield weaker, 
usually discernible only in specimens treated with KOH. Pigmenta- 
tion of pinacula weaker, interrupted. Meso- and metathorax: pig- 
mentation of pinaculum of setae Ia-Ib weak, restricted to a small 
patch anterior to base of setae or occasionally with an additional 
