194 GEO. D. HULST. 



1. M. pelviculella n. sp. — Expands 14 mm. Labial jtalpi dark fiiscoiis 

 black on end; head and antennse dark fuscous. Thorax blackish, washed with 

 deep violet-red. Abdomen more ochreous, with reddish dorsally. Fore wings 

 dark fuscous blackish, heavily washed with violet-red on basal field, and less 

 heavily on outer field; basal line broad, quite distinct, even; ouler line indis- 

 tinct near margin, and subparallel with it; discal spots evident. Hind wings 

 fuscous, darker on veins and margin. 



Newburgh, N. Y., July 6tli. Taken with some cocoons of Acro- 

 basis befu/eUa Hulst, from White Birch trees. The cocoon must have 

 resembled that of J., beialella, as I could perceive no difference in the 

 cocoons, and this insect must have emerged from one. The food- 

 plant must, from the place of finding, be White Birch {Betula alba). 



EPHEKTIODES Rag. 



(Type gilvesceritella Rag.) 

 Rag., Diag. N. A. Phyc.p. 16, 1887. 



Labial palpi very slightly ascending, filiform, exceeding head, end 

 member longer than middle; maxillary palpi filiform ; tongue long, 

 strong; front with heavy scale tuft; antennae simple, scarcely bent 

 above base, ocelli wanting; fore wings slightly arched, angles rounded; 

 hind wings narrow, anal angle nearly lost, outer and anal margin 

 waved, cilia on anal margin very long; fore wings in Z with tuft of 

 scales below on costa. Legs slender, closely scaled; tarsi spinulated; 

 spurs large, heavy. Genitalia unknown. Venation : fore wings 10 

 veins, 9 wanting, 4 and 5 stemmed on a line with median vein ; hind 

 wings 7 veins, 2 at angle, 8 and 4 long sten)med, 5 wanting, 8 very 

 small. 



Synopsis of Species. 



1. Fore wings gray gilveseeiitella. 



" dark red 2. 



2. " basal line straight iiifiniella. 



" " rounded outwardly erytlirella. 



1. E. gilvesceiitella Rag., Diag. N. A. Phyc. p. 16, 1887.— Expands 12—16 

 mm. Palpi gray, heavily sprinkled with black. Front dark fuscous; antennae 

 fuscous. Thorax fuscous; abdomen gray, interlined with fuscous Legs dark 

 gray, powdered with black. Fore wings pale gray, median area dark gray. Hues 

 whitish, sinuous, black margined in median area. Discal spots distinct. Hind 

 wings transparent, with a bluish tinge. 



Arizona, California. 



2. E. iufiniella Rag., Diag. N. A. Phyc. p. 16, 1887. — Expands 9-11 mm. 

 Palpi more ascending than type, dark brownish fuscous; front and auteunse dark 

 fuscous; thorax dark reddish ; abdomen fuscous. Fore wings narrow, dark gray. 



