MICROMUS. 199 



space forked; six sectors; the discoidal series of veins six-gradate, 

 the four intermediate ones joined together ; posterior wings with 

 a fuscous point at the posterior margin. 



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



Hab. Washington (Osten Sacken) ; Georgia (Abbot). 



2. M. hamatus. 



Hemerobius hamatus Walk. Catal. 278, 5. 



Testaceous; antennas yellowish, feet pale*, wings subhyaline, 

 sprinkled with fuscous, the apex excised, subhamate. (From the 

 description of Walker.) It is similar to the preceding, but the 

 costal space is narrower. 



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



Hab. North America. 



* * Apex of the wings rounded. 



3. M. areolaris ! 



Micromus areolaris Hagen ! 



Yellowish ; head rufous, antennae black, thorax fuscous ; feet 

 yellow ; apex of the wings ovate, yellow-hyaline, veins sparingly 

 pilose, partly yellow, fuscous upon the disk and posterior margin, 

 areoles of the last-named areas streaked with fuscous ; two series 

 of areolets, four-gradate, infracted ; pterostigma yellow, each side 

 fuscous; posterior wings yellow-hyaline ; (reticulation irregular.) 



Length to tip of wings 6 millim. Alar expanse 11 millim. 



Hab. Florida, in March (Osten Sacken.) 



4. M. insipidus ! 



Micromus insipidus Hagen ! 



Luteous ; sparely pilose, head and thorax varied with fuscous, 

 antennas pale ; abdomen luteous ; feet pale, anterior tibiae with 

 two fuscous bands ; wings hyaline, anterior ones obsoletely striated 

 with fuscous; veins pale, with fuscous interruptions; four sectors ; 

 two series, 6 and 4 gradate, infracted. 



Length to tip of wings 9 millim. Alar expanse 18 millim. 



Hab. New York ; Philadelphia. 



5. M. sobrius ! 



Micromus sobrius Hagen ! 



Pale ; sparely pilose; antennas whitish-yellow, the apex obscurer; 



