NOTIDOBIA. 271 



2. S. crassicorne. 



Hydropsyche crassicornis Walk.! Catal. 113, 35. 



Ferruginous, with lurid hair; antennas stout, longer than the 

 body, articles paler at their bases; palpi and feet testaceous; wings 

 cinereous, with fulvous pile; anterior wings with a hyaline spot at 

 the base of the apical areolets; veins fuscous. (From the descrip- 

 tion of Walker.) 



Length to tip of wings 11 uiillim. Alar expanse 20 millim. 



Hob. Georgia (Abbot). 



NOTIDOBIA STEPHENS. 



Spurs arranged 2, 2, 4 ; maxillary palpi of the males masking 

 the face, recurved. 



1. N. borealis ! 



Notidobia borealis Hagen 1 



Brownish-black, with luteous hair; antennae bright yellow, the 

 basal article and the palpi black, hairy; feet pale, whitish; wings 

 fusco-hyaline, the anterior wings densely covered with luteous hair, 

 and ciliated with luteous. Male. 



Length to tip of wings 7 millim. Alar expanse 13 millim. 



Hob. Washington; St. Lawrence River, Canada (Osten Sacken). 



2. N. pyraloides! 



Notidobia pyraloides Walk.! Catal. 90, 2. 



Fulvous, with fulvous hair ; antennae twice the length of the 

 body, testaceous, with the base fuscous, and the apices of the basal 

 articles testaceous ; the first article stout, testaceous ; feet testace- 

 ous ; wings fuscous, with fuscous pile and cilise ; veins fuscous. 



Length to tip of wings 14 millim. Alar expanse 25 millim. 



Hob. Georgia (Abbot) ; North America ; Pennsylvania. 



3. N. lutea ! 



Notidobia lutea Hagen ! 



Yellow, with luteous hair ; antennae subannulated with brown ; 

 palpi yellow, interiorly with black hair; feet yellowish; wings yel- 

 lowish hyaline, sparingly clothed with luteous hairs and ciliated 

 with luteous; posterior wings hyaline. Male and female. 



