CONTROL OF HOUSEHOLD INSECTS 



39, 



found about houses. The young or larvae are an inch or more 

 in length, cylindric and yellowish brown. 



Fig. 28 Meal worm: a, larva; b, pupa; c, female beetle; d, egg, with surrounding case; 

 e. antenna, a, b, c, d, about twice natural size, e, more enlarged. (After Chittenden, U. S. 

 Dep't Agric. Div. Ent. Bui. 4. n. s. 1896) 



The cadelle 1 is another inhabitant of grain bins. The beetle is 

 rather stout, shining dark brown and about I of an inch long, 

 The peculiar grub or larva, over an inch long, is easily recognized 



Fig. 29 Cadelle, beetle'and larva, from above, enlarged. (Original) 



by its flattened appearance and the dark brown plates just behind 

 the head and at the opposite extremity of the body. 



'Tenebrioides mauritanicus Linn. 



