306 



XfNITED STATES NATIONAL MUSEUM BULLETIN 207 



between them. Hind wing smoky white, the veins 

 slightly darker. Alar expanse, 9-9.5 mm. 



Female genitalia without signum; projecting shield 

 behind genital opening large and approximately square; 

 an eversible lobe in ventral membrane between oviposi- 

 tor and eighth-segment collar. 



Type locality: Everglades, Fla. (type in USNM). 



Food plant: Unltnown. 



Represented only by the type and one paratype from 

 the type locality (Apr.), both females. 



630. Vameria dubia, new speciea 

 FiGTJKES 632, 1113 



Similar to atrifasciella except that forewing is less 

 abundantly shaded with black and female genitalia show 

 slight differences in the shape of the shield at genital 

 opening and the eighth-segment collar (compare figs. 

 1112 and 1113). Alar expanse, 8.5-11 mm. 



Male genitalia with costal process from harpe directed 

 backward, curved, pointed at apex; lower margin of 

 harpe evenly convex toward apex. Female genitalia 

 with projecting shield behind genital opening triangu- 

 late; eighth-segment collar appreciably narrower to- 

 wards base on dorsum; otherwise as in atrifasciella. 



Type locality: El Yunque, Luquillo Mts., Puerto 

 Rico (type in Cornell Univ. Coll. ; paratypes in Cornell 

 Univ. and USNM, 61395). 



Food plant: Unknown. 



Described from male type and one male and four fe- 

 male parat3T)es from the type locality. Mar. 29 to Apr. 

 23, 1930, Cornell University lot 795 sub. 9 and 40. In 

 addition to the types there are fragments of a broken 

 specimen in the Cornell Collection from Jajome Alta, 

 Puerto Rico, June 18, 1930, J. A. Hoffman, collector. 



This species is uncomfortably close to atrifasciella and 

 may be nothing more than a race or variety of it, but 

 in all the females before me the genitalic differences, 

 slight though they be, are consistent, and in the absence 

 of any authentic males of atrifasciella or sufficient fe- 

 male examples of any Vameria species to determine the 

 extent of individual variation in genitalia it seems safest 

 to define dubia as a distinct species. 



190. Genus Eurythmia Ragonot 



Eurythmia Ragonot, N. Amer. Phycitidae, p. 16, 1887. — Hulst, 

 Phycitidae of N. Amer., p. 195, 1900. — Hampson, in Rago- 

 not, Monograph, pt. 2, pp. xiii, 266, 1901. (Type of genus: 

 Ephestia hospitella Zeller.) 



Tongue well developed. Antenna weakly pubescent, 

 simple. Labial palpus upturned, reaching vertex, lat- 

 erally flattened and somewhat rough scaled; third seg- 

 ment slightly more than half as long as second. Maxil- 

 lary palpus filiform. Forewing smooth; 9 veins; vein 2 

 from very close to lower outer angle of cell; 3 from the 

 angle, shortly stalked with 5; vein 4 absent; 6 from be- 

 low but near upper angle, very slightly bent; 8 and 9 

 united; 10 from the ceU, separated from 8 at base; male 

 with short costal fold. Hind wing with 2 from close to 

 lower outer angle of cell; 3 and 5 stalked for at least half 



their lengths; 7 and 8 anastomosed for most of their 

 lengths beyond cell (free element of 8 very short); cell 

 less than half the length of wing; discocellular vein 

 curved. Eighth abdominal segment of male simple. 



Male genitalia with gnathos terminating in a very 

 short, stout, narrowly forked projection. Transtilla 

 complete, arched and produced at middle into a narrowly 

 forked proj ection with shorter central spur. Harpe with 

 costa sclerotized for half its length, the apex of the 

 sclerotized margin projecting as a free spm-. AneUus a 

 curved shield with short lateral lobes. Aedeagus taper- 

 ing sharply from enlarged base to bluntly pointed apex; 

 penis armed with an elongate sclerotized spiral band 

 covered with short saw-toothed spines. Vinculima tri- 

 angulate, longer than greatest width and tapering to a, 

 blimt point. 



Female genitalia with ductus bursae membranous 

 throughout; genital opening simple; bursa copulatrix 

 with signa a series of (3 to 6) detached, broad-based, 

 short, thornlike spines and narrow-bladed discs situated 

 near anterior end of the bursa and a cluster of several 

 similar, much smaller spines near junction of bursa and 

 ductus bursae; ductus seminalis from biu-sa in the neigh- 

 borhood of the larger signa. 



Eurythmia is distinguished chiefly by the armature of 

 the penis, the arrangement of the signa in bursa, and the 

 simple eighth abdominal segment of the male. The 

 venation is similar to that of Varneria except for the 

 shorter stalking of veins 3 and 5 of forewing, normally a 

 character of, at most, specific significance. Ragonot 

 and Hampson interpret the forewing venation differ- 

 ently from that given here ; namely, 2-3 united and 4-5 

 stalked rather than 4 absent and 3-5 stalked. The end 

 result would be the same, but the male genitalia do not 

 indicate any affinities to the genera having 2 and 3 

 stalked and tending to fuse and do show affinities to 

 Ephestiodes (especially the aberrant species noniella and 

 stictella) where veins 4 and 5 are stalked and 4 shows a 

 tendency to disappear (compare venation of E. plorella, 

 fig. 109). 



Apparently the genus as here defined is confined to 

 North America; at least, no tropical species have as 

 yet been discovered. Several have been described from 

 the United States on trifling differences of color and 

 maculation. They exhibit no differences in male geni- 

 taha of any significance and no consistent characters in 

 the female genitalia. There is great variability in the 

 number, arrangement, and shape of the spines and discs 

 forming the signa; but this is individual and as great 

 between females of a given series as between it and any 

 of the other named forms. Pending some information 

 on the biology, and more material from intervening 

 areas of the distribution, we shall have to keep some of 

 the names; but I suspect that they aU represent but one 

 variable species. Figures 633c-d show extremes of 

 variation in the forked central projection from transtilla 

 between a small Texas example of hospitella and the type 

 of diffusella Ely. Such difference is not of more than 

 individual significance as we have both extremes and 

 all intergrades in male examples of hospitella. 



