18 INJURIOUS INSECTS OF 1904. 



taking the liberty to make certain suggestions as the result of 

 some personal observations and knowledge of the insect's habits. 

 It has seemed desirable also to append short descriptions of some 

 other pests found in flour mills and granaries, most or all of which, 

 when found in mills, are killed by the same treatment which has 

 been found effectual against the flour moth. 



Description of Moth, Larva and Egg; Its Life History and 



Habits. 



This moth, named Ephestia kuchnicUa, by Professor Zeller in 

 1879 in honor of Professor Kuhn of the University of Halle, Ger- 

 many, is from 2/5 to 3/5 of an inch long, measuring from 3/5 of 

 an inch to i inch from tip to tip of expanded wings. Its general 

 color, when freshly emerged from pupa, is blackish gray, the front 



Fig. 6. — Mediterranean Flour Moth, three and three-fourths times enlarged. Original. 



wings being gray, spotted with black scales, and irregular, angular 

 black lines crossing the wing near the tips. A characteristic "W 

 shaped black line will be noted crossing the wing about half way 

 between the tip and base; see colored plate. Fig. i on colored 

 plate represents the moth enlarged three times ; Fig. 2, the larva 

 which produces the moth, also three times enlarged ; Fig. 3, the 

 pupa found in the cocoon, same enlargement ; Fig. 4, the head 

 and anterior segments of the larva to show details, enlarged six 

 times; Fig. 5, the posterior segments to show details, enlarged 

 six times ; Fig. 6, the dorsal view of head and thoracic segments, 

 showing details of shield, enlarged six times ; Fig. 7, abdominal 



