,A [  
 . Spraying Apple Trees. 43 {
 ‘ cases at less than half the distance from front to hind margin of ‘
wing-cases. A patch of granules or scales on the dorsum of the  
 V metathorax and tw-0 succeeding body divisions. '1‘ip of abdomen "
  with a stout process. Color, pale brown, with a reddish brown  
 . shade along the back, some of the sutures for a short length, and i
’  the elongate spiracles, deep reddish brown. Length, male, 0.40 `_
;  inch (10 mm.); female, 0.60 inch (15 mm.), `
 ·_ I·n1ago.— Male with relatively large, rounded, simple wings. ;
  Umber-brown, the base of the fore wings darker, and with an ob- , i
J  scure gray area at the anterior margin at the middle, a black cross- l 2
»_ line at the ibase, a sinuous black cross-line, most distinct at the an- = ·
 jé terior margin, separating the distal third of the wing, a black spot i
  beyond this line on the m·argin before the apex, and a white dot  
i  X within the internal angle. Hind wing and body of the same general { E
  color as the fore wings, without markings. Antennae strongly li
 f feathery (pectinate). Wing expanse, 1.08 to 1.24 inches (27-31  
 T mm.). Female with much stouter body; wings mere lappets; an-  
  tennae slender. Dull gray, length, 0.40 inch (10 mm.),  Vg
  THE UNICORN CATERPILLAR. .  
5  (Schizum unicomis). * 
. l -l
  One sometimes finds clinging to the gnawed edges of apple  
leaves an odd, sluggish, purplish and green caterpillar with an  ¤
  abrupt prominence on the fourth body division (first abdominal)  
i bearing at its summit two smaller prominences. It is the young  
, of a gray moth. i  
  Two broods of this insect appear each summer. The caterpillars  
_ are found most frequently toward fall, but June 3, 1899, the writer  
1 . · found larvae, presumably of this species, doing some mischief to  
[-( young apple trees in Breckinridge County. They were then about  
_, grown, measuring a trifle over one inch in length. Young larvae  
i were taken on young apple in Casey County, August 9, 1897, and {4
  nearly grown examples were collected from apple in Henderson  
y ’ County, August 30, 1906.  
.   The Breekinridge County examples were very strikingly color- if 
i, cd and may possibly be some related species, since they differ somc—  
’ I— g what from examples taken at other times and also from published  F
i F fléscriptions of this species. Notes made at the time from living  ,
  . examples follow:  
I 3 Common and rather injurious. Head, first thoracic somite, and ‘  
— all abdominal divisions. purple. Second and third thoracic somites  
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