not usually ideal for rapid growth 

 in buildings and homes where good 

 sanitation is practiced. 



The female lays her eggs in a 

 leathery capsule, which she forms 

 at the end of her body. The Ger- 

 man cockroach carries the egg cap- 

 sule about a month, and drops it a 

 day or so before the eggs are ready 

 to hatch: about 30 cockroaches 

 hatch from the capsule. The other 

 kinds carry the egg capsules a day 

 or two. then glue them to some ob- 

 ject in a protected place; about 12 

 cockroaches hatch from each cap- 

 sule after an incubation period of 2 

 to 3 months. 



Preventing entry 



Cockroaches may enter the house 

 from outdoors, in infested contain- 

 ers from other buildings, or from 

 adjoining homes or apartments. 

 To keep them out, fill all cracks 

 passing through floors or walls, and 

 cracks leading to spaces behind 

 baseboards and door frames, with 

 putty or plastic wood. Pay special 

 attention to water and steam pipes 

 entering rooms. 



Cockroaches develop in large 

 numbers in dirt and filth. Thor- 

 ough cleaning reduces the likeli- 

 hood of infestation. 



Five Kinds of Cockroaches Troublesome in Buildings 



Name 



Description 



Where found 



American cockroach 



Australian cockroach 



Brown-banded cock- 

 roach ( also called 

 tropical cockroach). 



German cockroach * also 

 called croton bug and 

 water bug). 



Oriental cockroach 5 (also 

 called black beetle and 

 shad roach). 



Reddish brown to dark brown. 

 Adults 1 : :< to 2 inches long. 



Reddish brown to dark brown. 

 Yellow markings on the 

 thorax: yellow streaks at base 

 of wing covers. Adults 1 inch 

 long. 



Light brown. Mottled, reddish- 

 brown wings on female; 

 lighter wings on male. 

 Adults l 2 inch long. 



Develop in damp basements 

 and sewers: forage mostly 

 on first floors of buildings. 



Develop in warm, damp 

 places, in or out of doors. 

 Forage mostly on first 

 floors of buildings. 



Develop and live all over 

 the building. 



Light brown. Black stripes run- Develop and live in kitch- 

 ning lengthwise on back. ens and bathrooms. 



Adults Ys inch long. Most 

 common of the five kinds. 



Black or dark bro 



wn. 



Traces J Develop in damp basements 



of wings on females: short 

 wings on males. Female 

 adults 1 to 1 l A inches long; 

 male adults a little shorter. 

 More sluggish than other four 

 kinds. 



and sewers: forage mostlv 

 on first floors of buildings. 



Periplaneta americana. 

 Periplaneta australasiae. 



Supella supellectilium. 

 Blattella germamca. 



5 Blatta orientalis. 



