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PROCEEDINGS OF THE NATIONAL MUSEUM 



Figure 1. — Distribution records of the North American species of Szvammerdamia. 

 A pyrella # heroldella 



Swammerdamia heroldella Hiibner (sensu Treitschke, 1833) 



Figures 2c,d, 36 



Tinea caesiella Hiiliner, 179G, Pammlung europaischer Schmetterlinge, vol. 8, 



p. 65, pi. 25, fig. 172. 

 Swamiiierdamia heroldella Hiibner [new name for caesiella], 1825, Verzeichniss 



bekannter Schmettlinge [sic], p. 425. 

 Lita heroldella Treitschke, 1833, Die Schmetterlinge von Europa, vol. 9, p. 97. 

 Tinea nubeculella Tengstrom, 1848, Notis. Sallsk. Fauna Flora Fennica Forh., 



vol. 1, p. 3. 

 Tinea griseocapitella Stainton, 1851, Catalogue of the British Tineidae and 



Pterophoridae, suppl., p. 3. 

 Swammerdamia castaneae Busck, 1914, Proc. Ent. Soc. Washington, vol. 16, 



p. 148. (New sjaionymy.) 

 Sivammerdamia cuprescens Braun, 1918, Canadian Ent., vol. 50, p. 231. (New 



synonymy.) 



Alar expanse 9-13 mm. 



Antennae whitish basali}^, fuscous annulated with white beyond. 

 Head and face white; labial palpus fuscous, tip of apical segment 

 whitish. Legs light to dark gray, tarsi more or less annulated with 

 white. Thorax white to gray dorsally. Forewing grayish white 

 variably overcast with fuscous scales; white anteapical costal spot 

 either present or absent ; cilia fuscous with a coppery lustre. Hind wing 

 pale to dark gray, cilia gray. 



Male genitaha: See figures (sUde WDD 3025). Harpe narrow 

 basaUy with numerous short, heavy setae on ventral edge of sacculus; 

 ventral plate of gnathos with numerous small spines; aedeagus long, 

 crooked, bluntly pointed at apex; vesica armed with cornuti. 



Female genitalia: See figures (shde WDD 3003). Ductus bursae 

 membranous, much longer than length of abdomen; corpus bursae 

 with signum a sclerotized, dentate plate. 



