1906] DYAR—LIFE HISTORIES OF NORTH AMERICAN GEOMETRIDAE \\- 
LIFE niST()RIES OF NORTH AMERICAN GEOMETRIDAE.— LXVH. 
BY H.YRRI.SON G. BY.YR, IVA-SHINGTOV, D. C. 
Euchlaena effertaria Walker. 
Egg. Elliptical, rounded, depression and truncation not strong, rounded, the 
truncation a little oblicpie. Reticulations large, hexagonal, distinct, tending to lie 
in longitudinal rows but the cross striae equally heavy; white crests at the angles; 
surface shagreened; bluish green, turning dull [)ur|)lish; size .8 X .0 X .5 mm. 
Stage I. Head rounded, bilobed, flattish before, erect, not notched, brownish 
ochraceous, not shining, a little white frosted before; ocelli and jaws black. Body 
moderate, rather stout, normal, equal, segments slightly widened posteriorly and 
coarsely annulate. White; a broad, subdorsal vinous-brown band, joined to a 
single broail dorsal one on joints 10-13; a similar single ventral band, broken about 
the feet on joints 2-4; feet of joint 10 vinous, of 13 ochraceous, thoracic feet pale. 
Tubercles small, dark, normal; setae short, dark, very minutely capitate. 
Stage II. Head slightly bilobed, flattened before, held flatly, luteous with 
brown dots in vertical rows, more distinct above; width .o mm. Body moderate, 
even, greenish, the dark brown subdorsal and ventral stripes as before. 
Stage III. Head broad, flat, held flatly, all dark purplish shaded and dotted, 
leaving two erect obscure pale sordid lines and a broad lunate band of pale aljove 
the mouth; width .8 mm. Body marked as before but filled in with sordid purplish 
shadings; sides broadly dull greenish, venter and feet dark. Faint narrow pale 
lines of whitish, addorsal ami sribdorsal ones the most distinct. 
Stage IV. Head gray above with vertical lines of black dots, black on the face 
surrounding the transverse lunate pale gray bar over the lower part of clypeus; 
width 1.4 mm. Body moderate, smooth, dark gray dorsally with faint irregular 
pale addorsal and subdorsal lines; subventer broadly greenish, pale with dark spots 
on tubercles vii; venter difl’u.sely dark brown. Tubercles black, conical. 
Stage F. Head rounded, flattened especially below, held flatly; black, dull on 
the faces of the lobes, a broad white triangle below over clypeus and above anteriorly 
reaching up along the median suture; else gray brown, the lobes with vertical rows 
of oblique black spots in two rows alternating; antennae reddish; width 2 mm. 
Body cylindrical, normal, thorax depressed, tubercles elevated, tubercle ii of joint 
9 especially high forming a pair of black papillae. Anal flap triangular, ]rroduced; 
a pair of subanal cones. Black-brown, reddish brown shaded, no defined lines; a 
