APPLE LEAVES — HEMEROBIUS SPECIES. 93 



2.25 to 3.20. This species israther rare. It^begins to be met with about the middle 

 of July and continues until the arrival of cold weather. 



Mr. Stephens has also described a species under this same name. Mr. Say, how- 

 ever, appropriated the name to our insect more than ten years anterior to its use by 

 Mr. Stephens. Another name therefore becomes necessary for the British species, 

 which, if it has not already been re-named should be designated the Stephensii, in 

 honor of its first describer, the eminent entomologist recently deceased. 



Mr. Say in connection with the preceding (in the appendix to Long's Expedition, 

 page 306) describes another species, the vittaius or Striped lace-wing, from a speci- 

 men in the Philadelphia museum, found by Mr. Titian Peale, in New Jersey. This 

 is of the same size with the Freckled lacb-wing and closely resembles it, but has the 

 body of a pale yellowish color with a broad blackish stripe upon each side of the 

 thorax, and a small white spot on the outer edge of the fore wings near the tip. I 

 have never met with tjiis, which appears to be a rare species. 



The Alternated laci!-wing (H. alternatus) is dull whitish or yellowish white 

 varied with dark brown, and is clothed with short pale yellowish hairs. Its face, and 

 a stripe on each side of the thorax is blackish brown. The abdomen is dull whitish 

 with a clearer white stripe along each side, which is margined above by a row of 

 spots and below by a slender line of a brown color. The wings are pellucid and iride- 

 scent red and green ; the veins are white with alternating blackish spots giving off 

 fine bristles of the same color. The veinlets are black, robust, and broadly margined 

 with smoky, forming two irregular rows of spots across the wing, with a third short 

 one between them upon the inner margin. The margin is whitish, with dusky spots 

 of different sizes, the larger spots having two or sometimes only one smaller spot be- 

 tween them. The hind wings are pellucid, their veins white, those next to the rib- 

 vein with dusky spots, the vdnlets blackish but not margined with smoky; the inner 

 fork of the innermost longitudinal vein is also blackish from the anastamosing veinlet 

 half way to the furcation. The margin of these wings is whitish alternating with 

 dusky spots around the apex. A dot or short line is placed on the margin between 

 the tips of all the veins and their forks. The wings expand 0.80. This occurs the 

 last of June, particularly upon pine and hemlock bushes. 



The Stigma-mabked laoe-wing (H. stigmaterus) has the veins of the fore wings 

 black with white bands; the cells are smoky with clearer spots afeach of the white 

 bands upon the veins ; stigma opake tawny reddish ; two series of black anastamos- 

 ing veinlets; a third veinlet near the inner base connecting the first longitudinal vein 

 with the inner fork of the second longitudinal, and on the opposite side continued to 

 a branch of the first longitudinal, thus forming two closed basal cells, the outer one 

 of which is long and narrow, with the second longitudinal vein forking near the mid- 

 dle of this cell. This last mentioned veinlet is more robust and more obviously 

 margined with dusky than the others. Head and antennse pale dull yellow ; legs 

 paler; thorax and abdoinen blackish brown. A variety which is common has the 

 tip of the abdomen pale yellow, and another variety has a pale stripe along each side 

 of the abdomen. The wings expand from 0.55 to 0.60. This is a common, species 

 throughout the Northern and Western States, occurring from March until October, 

 resting upon the foliage of various evergreen and deciduous trees and upon the grass 



