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NEW YORK STATE MUSEUM 



nests outdoors under stones. Should these be found they can be 

 destroyed by Hberal appHcations of boihng water or spraying with 

 kerosene. 



Cockroaches 



These insects with their active habits and ahnost omnivorous 

 tastes, are found on ships, generally established in many cities 

 and villages, and are likely to be carried along the main routes of 

 travel by shipments of food stuffs or materials packed in the 

 vicinity of foods. Old houses with their numerous crannies and 

 crevices afford a multitude of hiding places and make it possible 

 for cockroaches to exist in spite of persistent efforts to exterminate 

 them. 



Fig. 22 Oriental cockroach: a and 

 d, a half grown individual; all natural 

 Ent. Bui. 4. n. s. 1896) 



:, female from above and the side; h, male; 

 size. (After Marlatt, U. S. Dep't Agr. Div. 



Fig. 23 Croton bug: a, h, c, d, successive stages in the development of the young; 

 e, adult; /, female, with egg case; g, egg case enlarged; h, adult, with wings spread; all 

 natural size except g. (After Riley) 



