MATERIALS FOR A FAUNA CANADENSIS. 489 



ginated, witli black teeth. Length 23 millitn. ; alar expanse M 

 millim. 



St. Martin's Falls, Albany Eiver, Hudson's Bay (Barnston), Eu- 

 rope and Asia. 



L. DOSSUAEius, Say. — Pale ochreous ; antennae fuscous ; abdomen 

 obscure, apex of the segments pale ; anterior wings whitish -yellow, 

 veins black ; some transverse, sometimes dilated, lines, a pterostig- 

 matical, quadrangular spot, and an anal one, black ; posterior wings 

 with two costal spots, aud the margin obscure. Length 1 1 millim. ; 

 alar expanse 22 millim. 



Salem, Mass. 



L. EiTERNUs, iJayiJtt. — Luteous ; head and thorax obscure above, 

 with luteous hair ; antennae with the base luteous ; feet ochreous, 

 with black spines ; apex of tlie abdomen obscurer ; anterior wings 

 shining, narrow, sub-luteo -pilose, luteous, densely dotted with fus- 

 cous, the marks often confluent ; a rhombical spot upon the middle, 

 which is oblique, narrow, hyaline ; the anterior margin immaculate ; 

 at the anastomosis a few spots ; veins luteous, the fourth apical 

 areole narrow at the base, shorter than the rest ; posterior wings 

 luteo-hyaline. 



Female : The four anal appendages almost equal, short, acute ; 

 the valvule short, incised. Length 20 millim. ; alar expanse 38 

 millim. 



N. Eed Eiver, Eupert's Land (Kennicott.) 



L. HYALANUS, Haffen. — Fa\e ochreous, with yellow hair ; antennae 

 ochreous ; feet pale, with black spines ; anterior wings pale ochreo- 

 hyaline, somewhat glossy, veins ochreous ; the fourth apical cellule 

 acute at the base ; posterior wings pale yellowish hyaline. 



Male : Superior appendages ovate, prominent ; the inferior ones 

 broadly acute. Length 12 millim. ; alar expanse 22 millim. 



N. Eed Eiver, Eupert's Land (Kennicott.) 



§3. 

 L. DESPECTtJS, Walker. — Greyish-ferrugenous, with pale pile, and 

 longer hair, which is black ; antennae subfuscous, bases of the arti- 

 culations testaceous ; maxillary palpi fuscous, labial palpi testaceous ; 

 abdomen and feet testaceous ; mesothorax with a double whitish 

 streak above ; anterior wings fuscous, freckled with whitish ; thyri- 

 dium and first subapical areole with a whitish spot ; costa and disk 



