LEPTOCERUS. 277 



white ; palpi fuscous ; head with snow-white hair ; feet snow- 

 white, base of the femora fuscous, the four anterior tarsi spotted 

 with fuscous ; anterior wings rufo-fuscous, with fuscous hair, and 

 luteous hair intermixed, a whitish-yellow spot at the anal angle ; 

 veins fuscous ; cilia paler ; posterior wings gray. Male and 

 female. 



Length to tip of wings 11 millim. Alar expanse 21 millim. 



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



3. L. dilutus ! 



Leptocerus dilutus Hagen ! 



Grayish-fuscous ; antennas fuscous, the basal half broadly annu- 

 lated with snow-white; palpi fuscous, with snow-white hair; head 

 with snow-white hair ; feet snow-white, bases of the femora a little 

 obscured ; abdomen fuscous ; anterior wings gray, with luteous 

 hair, sometimes obsoletely varied with fuscous ; veins gray ; cilia 

 fuscous ; with an anal yellowish spot ; posterior wings gray. 

 Male and female. 



Length to tip of wings 7 -10 millim. Alar expanse 13 19 

 millim. 



ffab. Chicago (Osten Sacken). 











4. L. niger ! 



Phryganca nigra Linne. Mystacides nigra Pict. ! Phryg. 169, 10, pi. xii, 

 fig. 5. Leptocerus niger Walk. ! Catal. 58, 6. (With the synon- 

 ymy). 



Black, shining, with black hair ; antennae black, the basal half 

 annulated with snow-white, the basal article rufous; head black, 

 shining ; palpi very densely black-hirsute ; abdomen black ; feet 

 luteous, intermediate ones snow-white, tarsi spotted with fuscous ; 

 anterior wings steel-blue black, posterior wings blackish. Male. 



Length to tip of wings 7i millim. Alar expanse 14 millim. 



Hob. Washington (Osten Sacken) ; it is found everywhere in 

 Europe. 



5. L. sepulchralis. 



Leptocerus sepulchralis Walk. ! Catal. 70, 57. 



Black, with black hair; antennas black, the base annulated with 

 white ; apex of the abdomen ferruginous ; feet testaceous ; wings 

 blackish. (From the description of Walker.) 



