THE BED-BUG. 197 
joints of bed-steads, cracks in walls, under loose wall-paper, 
but especially near iron, be this an old nail in the wall or the 
hooks that are used to fasten the bedstead together. These 
eggs are very beautiful objects; they are terminated by acap, 
which is removed by the escaping young bugs. These latter 

Fig. 160.—Mouth-part of bed-bug. Greatly enlarged. Original. 
possess the color of innocence, being white and almost trans- 
parent; they look, in shape, very much like the old ones, and 
are only a little broader in comparison, and have stouter 
feelers. As soon as they can attack a victim they become 
round and resemble a minute globule of blood. Imbibing 
blood whenever they have an opportunity they quickly grow, 
and after moulting several times they reach their adult and 
sexually mature condition. The organ by means of which 

Fig. 161.—Eggs of bed-bugs found in swallow-nest. Greatly en- 
larged. Original. 
they obtain blood, is a sucking-tube or haustellum. (Fig. 
160.) This is composed of two half eylindrical side-pieces, 
analogous with the labium and labial-palpi, and enclosed in 
this tube are four sharp and pointed lancets, the transformed 
mandibles and maxillary palpi. 
The female deposits eggs during the warmer season four 
times, and about fifty atatime. In Minnesota these bugs have 
only one annual generation, yet judging from their numbers 
in certain, not first-class, hotels not hundreds of miles dis- 
