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APPLE LEAVES HEMEROBIUS SPECIES. 93 



This species is rather 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, 

 however, 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 designa- 

 ted 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 Expe- 

 dition, page 30G) describes another species, the vittatus or Striped lace-wing, 

 from a specimen in the Philadelphia museum, found by Mr. Titian Peale, in 

 New Jersey. This is of the same size with the Freckled lace-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 this, which appears to 

 be a rare species. 



The Alternated lace-wing {II. allerna us) 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 abdo- 

 men is dull whitish with a clearer white stripe along each side, which is mar- 

 gined above by a row of spots and below by a slender line of a brown color. 

 The wings are pellucid and iridescent red and green; the veins are white with 

 alternating blackish spots giving off fine bristles of the same color. The vein- 

 lets are black, robust, and broadly margined with smoky, forming two irregu- 

 lar rows of spots across the wing, with a third short one betw T een 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 between them. 

 The hind wings arc pellucid, their veins white, those next to the rib vein with 

 dusky spots, the veinlets 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 alter- 

 nating 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-mariced lace-wing (//. stign.aterus) has the veins of the fore 

 wings black with white bands; the cells are smoky with clearer spots at each 

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

 black anastamosing 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 middle of this cell. This last men- 

 tioned veinlet is more robust and more obviously margined with dusky than 

 the others. Head and antenme pale dull yellow; legs paler; thorax and ab- 

 domen blackish brown. A variety which is common has the tip of the abdo- 

 men 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 Oc- 

 tober, resting upon the foliage of various evergreen and deciduous trees, and 



