Pyralidae 
The insect occurs from Canada and New England in the North 
to the Potomac and the Ohio in the South. 
(4) Crambus trisectus Walker, Plate XLVIII, Fig. 20, ?. 
Syn. interminellus Walker; exsiccatus Zeller; biliturellus Zeller. 
This is a very common and widely distributed species, rang¬ 
ing from the Atlantic to the Pacific through more temperate 
latitudes. 
Genus DIATR^EA Guilding 
(1) Diatraea saccharalis Fabricius. (The Larger Corn-stalk 
Borer.) 
Syn. leucaniellus Walker; lineosellus Walker; obliteratellus Zeller; crambi- 
doides Grote. 
As early as the year 1828 the attention of the world was called 
to the damage inflicted upon the sugar-cane in the West Indies 
by the larva of a lepidopterous insect. The author of the paper 
in which it was described was the Rev. Lansdown Guilding, who 
was awarded a gold medal by the Society of Arts for his account 
of the insect. About thirty years later, attention was called to 
the ravages of 
a similar insect 
in the island of 
Mauritius, into 
which it had 
been intro¬ 
duced. From 
the West In¬ 
dies the insect 
was transport¬ 
ed to Louisi¬ 
ana, and a 
study of its 
pernicious 
habits was ac¬ 
curately made 
in the year 1881 
by Dr. L. O. enlarged. (After Howard, “ Insect Life,” Vol. IV, p. ioi.) 
Howard of the 
United States Department of Agriculture. It had been known in 
Louisiana as a pest since 1855. 
/ 3 
Fig. 223.— D. saccharalis. a , b , c , varieties of larva, en¬ 
larged ; d, third thoracic segment; c, eighth abdominal seg¬ 
ment ; f, abdominal segment from side; g , same from above, 
403 
