204 



UNITED STATES NATIONAL MUSEUM BULLETIN 207 



108. Genus Eurythmidia Ragonot 



Eurythmidia Ragonot, Monograph pt. 2, p. xii, 1901. Hampson, 

 in Ragonot, Monograph, pt. 2, p. 208, 1901. Janse (in 

 part), Journ. Ent. Soc. South Africa, vol. 7, p. 4, 1944. 

 (Type of genus: Euryihmia ignidorsella Ragonot.) 



Tongue well developed. Antenna pubescent; on 

 male, a row of 4 or 5 rough scales on shaft beyond basal 

 segment; of female sunple. Labial palpus, upturned, 

 extending well above vertex; third segment about half 

 the length of second, pointed. MaxUlary palpus 

 squamous, appressed to face. Forewing smooth; 10 

 veins; veins 2 and 3 united, from lower outer angle of cell, 

 connate with the stalk of 4-5; 4 and 5 stalked for at 

 least half their lengths; 6 from below upper angle of 

 cell, straight; 8 and 9 stalked; 10 from cell approximate 

 to 8-9 at base, thence divergent; male without costal 

 fold. Hind wing with vein 2 from the lower outer angle 

 of ceU, connate with the stalk of 3-5; 3 and 5 long 

 stalked (for more than half their lengths) ; 7 and 8 

 anastomosed for nearly two-thu'ds of their lengths; ceU 

 short, less than one-third the wing length; discocellular 

 vein curved. Eighth abdominal segment of male simple. 



Male genitalia with apical process of gnathos an 

 elongate, narrow hook. Uncus triangulate; apex nar- 

 rowly rounded. Harpe elongate, slender ; apex roimded ; 

 clasper vertical, short, pointed, weakly sclerotized. 

 Anellus a flattened plate. Aedeagus moderately slen- 

 der, straight; penis unarmed. Vinculum stout, as 

 broad as long, not tapering, truncate. 



Female genitalia with biu-sa copulatrix elongate; 

 signa strongly developed, consisting of a curved, round, 

 densely spined plate and a few detached spines near the 

 plate; ductus bursae somewhat shorter than bursa, 

 minutely scobinate near junction with bursa, the sco- 

 binations extending into bursa for a short distance; a 

 narrow sclerotized plate behind (and above) genital 

 opening; genital openii^ otherwise simple; ductus 

 seminalis from bursa near its jimction with ductus 

 biu-sae. 



The genus is obviously closely related to Eurythmasis, 

 with similar habitus and genitalia, differing chiefly in 

 venation, the simple eighth segment of male, and the 

 simple shaft of the male antenna. It contains one 

 species common to the southwestern United States and 

 Central America. I interpret the venation of forewing 

 differently from Hampson and Ragonot. They con- 

 sider that 4 is absent and 3 and 5 stalked. From the 

 affinities of the genus I believe that 4 is present and 

 stalked with 5 and 2 and 3 imited. By either interpre- 

 tation the end result would be the same; but Euryth- 

 midia seems to belong with the genera where the 

 tendency is for 2 and 3 to fuse. 



The description and figures published by Janse apply 

 to Eurythmidia only so far as the female characters are 

 concerned. The two specimens from Amula, Mexico, 

 which he had before him were from the Druce Collection 

 and bore Hampson's identification labels. The female 

 is Eurythmidia ignidorsella but the male is not. It is 

 a somewhat rubbed example of Elasmopalpus lignosellus 

 Zeller. Evidently Hampson did not check the vena- 



tion, for it is normal for Elasmopalpus, vein 4 being 

 present in both hind wings. Dr. Janse kindly sent me 

 the specimens and his slides for examination and has 

 asked me to make the correction to his description. 



407. Eurythmidia ignidorseUa (Ragonot) 



Figures 91, 459, 943 



Euryihmia ignidorsella Ragonot, N. Amer. Phycitidae, p. 16, 

 1887.— Hulst, Phycitidae of N. Amer., p. 196, 18S0. 



Eurythmidia ignidorsella Hampson, in Ragonot, Monograph, pt. 

 2, p. 208, 1901.— Dyar, Proc. U. S. Nat. Mus., vol. 47, p. 

 338, 1914.— McDunnough, Check list, No. 6361, 1939. 



Forewing blackish gray; a white border along costa, 

 sparsely dusted with reddish scales ; on middle of inner 

 margin a whitish orange patch, the orange shade ex- 

 tending more or less along inner margin toward base of 

 wing; antemedial line obsolete; subterminal line very 

 faint (frequently absent), when distinguishable, whitish. 

 Hind wing semihyaline, more or less shaded with fuscous 

 along costa and outer margin. Alar expanse, 12-16 

 mm. 



Genitalia as given for the genus; terminal margin of 

 vinculum straight; spined plate of signa rather small. 



Type locality: Arizona (type in Paris Mus.). 



Food plant : Unknown. 



Distribution : United States: Arizona, Paradise 

 (Sept.), Prescott (Sept.), M:6xico: Orizaba, Guerrero, 

 Amula (May), Cayuga (Apr., May, Aug.), PanamX: 

 Alhajuelo (Mar., Apr.), Cano Saddle (Gattin Lake, 

 May), Corazal (Mar.), Paralso (Apr.), Porto Bello 

 (Feb., Mar., May). Reported from additional locali- 

 ties in Mexico by Ragonot and Hampson. 



Strikingly similar in color and markings to Euryth- 

 masis ignifatua but easily separable on genitalia and 

 venation. 



109. Genus Wunderia Grossbeck 



Wunderia Grossbeck, Bull. Amer. Mus. Nat. Hist., vol. 37, art. 1, 

 p. 133, 1917. (Type of genus: Wunderia neaeriatella Gross- 

 beck.) 



Tongue well developed. Antenna of female simple, 

 weakly pubescent. Labial palpus slender, upturned, 

 reaching above vertex, third segment acuminate, 

 slightly more than half as long as second. Forewing 

 smooth; 10 veins; veins 2 and 3 united, from lower 

 outer angle of cell, connate with the stalk of 4-5 ; 4 and 5 

 stalked for half their lengths; 6 from below upper angle 

 of ceH, straight; 8 and 9 stalked; 10 from the cell, 

 separate from 8-9 at base. Hind wing with vein 2 

 from the stalk of 3-5; 3 and 5 long stalked; 7 and 8 

 anastomosed for nearly two-thirds of their lengths; cell 

 open (discoceUular vein absent) . 



Female genitalia with bursa copulatrix without sig- 

 num and simple except for some minute scobinations at 

 its posterior end, the scobinations extending into the 

 ductus bursae for over half its length; ductus bursae 

 with a narrow sclerotized plate behind (and above) 

 genital opening; genital opening otherwise simple; 

 ductus seminalis from bursa near its junction with 

 ductus bm-sae. 



