ALDER CATERPILLARS. 



629 



Moth. — Forewings rather broad and short, ajiex acute, as is the angle in the middle 

 of the outer edge of the wing; the corresponding angle in the hind wings well 

 marked. Body and wings ocherous-yellow. Forewings with a broad dark basal 

 broken band, bent at a right angle behind the subcostal vein ; a similar outer or 

 extra-discal band, interrupted on the first and second median interspaces, and bent 

 at right angles on the last subcostal branch. A marginal 

 band, strongly marked on the costa, and succeeded by 

 a row of about five dark spots, the fifth beings ituated 

 near the internal angle. Hind wings covered by a sin- 

 gle diffuse broad median line, curved or bent outward in 

 the middle of the wing. The wings beneath more heavily 

 banded than above, and more strigated than above. Ex- 

 panse of wings, 32""" (1.10 inches.) 



Fig. 207. — Antepione deponta- 

 nata, natural size. — Bridg- 

 ham del. 



It differs from the specimen figured in my 

 monograph in having the inner and extra discal 

 lines and marginal spots well marked, while the borders of both pairs 

 of wings are without the usual broad, dark shading. 



This larva began to 



• 13. Geometrid larva. 



Found on the alder at Brunswick, Me., July 23. 

 pupate August 6. 



Larva.— Head rounded, slightly bilobed, not quite so wide as prothoracio segment, 

 surface marbled with brown. Body rather thick, without humps, but with rather 

 sharp prominent piliferous warts, with four dark warts arranged in a transversely 

 oblong square on top of each abdominal segment, those on the thoracic segments 

 arranged in a transverse line. Anal legs rather short and broad ; supra-anal plate 

 rather small, subtriangular, at the end six piliferous warts; general color greenish 

 purple. Length, 17""". 



14. Geometrid larva. 



This caterpillar was first observed frequently on the alder at Bruns- 

 wick, Me., July 23. 



Larva, — Head small, no wider than the body, smooth, of the same color as the 

 body ; the body slender, cylindrical, with no warts ; pea-green, the color of the alder 

 leaf; two narrow dorsal thread-like yellowish lines; two wider dorsal lin^s outside 

 of the median ones; two lateral yellow lines, the lower on the lateral ridge and some- 

 what broken ; the segments wrinkled ; anal legs rather small. Length, 13"'™. 



15. Geometrid larva. 

 (PI. IV, fig. 5.) 



This unusual form of caterpillar occurred on the alder through Au- 

 gust 1 to 18 at Brunswick, Me. 



Larva. — Body broad and flattened, ringed with brick-red. Head broad and flat, 

 as wide as the body ; amber-colored, speckled with brown, in a wide median band 

 on the sides ; segments brick-red between the yellowish sutures with interrupted 

 dark red lines, so that the surface of each segment is somewhat checkered. The 

 piliferous warts are large and distinct, while the spiracles are black, those on the 

 prothoracic and eighth abdominal segment being larger than the others. Supra-anal 

 plate and anal legs amber-yellow, spotted with brown ; anal legs short but very 

 broad ; supra-anal plate rather large, surface shining with six marginal piliferous 

 warts. Thoracic legs dark towards the claws ; the abdominal legs amber yellow. 

 Length, 10™"' 



