rSVCHE 
[J une-August 
58 
LIFE HISTORIES OF NORTH AMERICAN GEOMETRIUAE.— LX, LXI. 
BY HARRISON G. DYAR, WASHINGTON, D. C. 
LX. Mehmolophia canadaria GueruSe. I have distinguished the Eastern 
and Western races of this species in an article on the fauna of the Kootenay Dis- 
trict of British Columbia (Proc. U. S. Nat. Mus., XXVII, 910, 1904); the larvae 
here described are those of the Western race. 
Egg. P'.lliptical, flattened, depressed, truncated end rounded and only 
slightly flattened ; reticulations fine, formed by the edges of concave pits which 
are irregularly hexagonal with no defined pattern except centrally, where the egg 
is somewhat constricted ; they tend to line in longitudinal rows ; they are dis- 
tinctly raised, but have broad bases. Bluish green, slightly frosted, later shaded 
and spotted with pink at the truncated end. Size .9X.6X.5 mm. Most of the 
eggs were laid stuck under a piece of paper and they are probably laid in nature 
in the crevices of the bark. 
Stage I. Head rounded bilobed, higher and wider than joint 2, pale testa- 
ceous, eye black, mouth brown. Body rather short, normal, actively looping. 
Pale green, with dorsal, subdorsal and lateral smoky olivaceous bands, stigmatal 
region broadly pale; a broken subventral line and ventral band of smoky. 
Shields concolorous, but without the lines; tubercles and seta; concolorous, ob- 
scure ; setre short, white, capitate ; feet pale. 
Stage II. Head rounded bilobed, luteous, eye black, mouth brown ; width 
.6 mm. Body normal, moderate, smoky greenish, finely obscurely lined in 
whitish, appearing as before. The pale lines are addorsal, subdorsal, lateral and 
stigmatal. Cervical shield lined, anal plate with whitish edges. Tubercles pale, 
hair dots and setae black, small. 
SUige III. Head rounded, bilobed, clear orange yellow with faint dusky 
mottlings on the lobes, ocelli black; width 1.05 mm. Body moderate, not elon- 
gate, pale green, the anal end orange tinted. Stripes broad, dusky olivaceous, 
obscurely geminate by their edges ; dorsal, subdorsal, lateral, suprastigmatal, 
subventral and ventral, leaving the substigmatal space obscurely whitish. 
Tubercles and seta; small, black. 
Stage I r. Head rounded bilobed, full, yellowish green, setne black; width 
1.6 mm. Body moderate, not elongate, anal feet large, spreading. Green, the 
addorsal line pale, darker green filled, subdorsal pale ; sides faintly darker with a 
