NATHAN BANKS. 345 



Clirysopiella pallida n. sp. 



Pale yellowish (greenish in life?); second joint of the antennae 

 black, first joint with a black line on the outer side ; a median tri- 

 angular spot below antennte, an angular mark under each eye, a pair 

 of elongate spots on vertex, and the upper antennal sockets narrowly 

 dark brown; palpi marked with brown ; pronotum unmarked, plainly 

 a little narrower in front, rest of thorax unmarked ; legs pale ; abdo- 

 men pale, apex of male abdomen with a tuft of black bristles above, 

 two submedian tufts below the middle and a middle point tipped with 

 reddish. Wings hyaline, veins pale, unmarked, stigma distinctly yel- 

 lowish, and near tip of wings, veins with black bristles. Both wings 

 narrow, elongate, tips hardly acute, second cubital cell very narrow, 

 no longer than the third, latter widened at tip, the divisory veinlet 

 ends much beyond the cross-vein, the outer gradate series is near mar- 

 gin, about half of marginal veins forked. 



Expanse 21 mm. 



From Rincon, New Mexico, 31 August (Cockerell). 



HEMEROBIID^. 



Our species of Sympherobiits may be distinguished as fol- 

 lows : 



1. Longitudinal veins of wing wholly dark 2. 



Longitudinal veins of wings not all dark 3. 



2. Cells with two dark streaks occidentalis. 



Cells all dark iiinbratiis. 



3. Longitudinal veins with minute dark dots 6. 



Longitudinal veins with dark streaks; face pale 4. 



4. Fore wings with two curved dark bands over the gradate series. 



bifasciatiis. 

 No such bands 5. 



5. Wing surface dark, margin mostly dark aiigfustlis. 



Wing surface pale, margin with alternate dark and light spots. 



califoriiicus. 



6. Wings very broad at costal base ; first radial sector usually con- 



nected to second by a cross-vein, a large dark spot on fore 



wing near hind margin toward base aiiiiculus. 



Wings much narrower on the costal base, rarely any cross-vein 

 between first radial sector and the second 7. 



7. Three broad dark bands on fore wings plctus. 



No such broad bands on wings 8. 



8. The dark dots on the veins occupy as much space as the pale, .sur- 



face of wing mostly dark arizonicus. 



The dark dots occupy much less space than the pale 9. 



TRANS. AM. ENT. SOC. , XXXVII. (44) 



