\ 
82 FIELD NOTES ON APPLE CULTURE. 
insect. It is not generally known. On account of its 
close resemblance to the Round-headed Borer it has 
probably been overlooked. It has been observed by Mr. 
H. Osborn in Iowa, and by Professor A. J. Cook in Mich- 
igan. Professor Cook’s description of the insect is here 
quoted : 
“* Saperda cretata has hardly a mention in our current 
literature on economic entomology, and yet I find that in 
Central Michigan it is quite as common and destructive as 
Saperdacandida, * * * * This beetle, like Saperda 
candida, is from three-fourths to seven-eighths of an inch 
long, and brown, marked with white, 
though the white is not so prominent, 
and, instead of white lines, it is only 
4 represented by lines across the thorax 
" and white spots on each elytra or wing 
cover, one in the middle, notched in 
! both ends, and one near the tip, notch- 
Fig. 16.—sarrrpa ed or crescent-shaped on the inner 
ar posterior angle. The head, antenne 
and legs are all brown, while a broad, brown central stripe 
extends along the cntire length of the ventral or under 
surface of the thorax and abdomen. In Saperda candida 
the head is striped above on each side with white, while 
the antenne, legs and entire under surface are white. 
The cylindrical, footless larva and the pupa are almost 
entirely alike in both species, as are also the habits. The 
eggs are laid in June on the trunk and main branches of 
apple trees, wild crab-apples, June berry and wild thorn.” 
Four or five years ago Mr. Osborn wrote as follows re- 
garding the habits of the Spotted Borer : 
