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 : 



Reddish brown to dark brown. 



Develop in damp basements 





Adults 1 Vi to 2 inches long. 



and sewers: forage mostly 

 on first floors of buildings. 



Australian cockroach z ___ 



Reddish brown to dark brown. 



Develop in warm, damp 





Yellow markings on the 



places, in or out of doors. 





thorax: yellow streaks at base 



Forage mostly on first 





of wing covers. Adults 1 inch 



floors of buildings. 





long. 





Brown-banded cock- 



Light brown. Mottled, reddish- 



Develop and live all over 



roach -- i also called 



brown wings on female; 



the building. 



tropical cockroach). 



lighter wings on male. 

 Adults Vi inch long. 





German cockroach 4 (also 



Light brown. Black stripes run- 



Develop and live in kitch- 



called croton bug and 



ning lengthwise on back. 



ens and bathrooms. 



water bug). 



Adults H inch long. Most 

 common of the five kinds. 





Oriental cockroach 5 (also 



Black or dark brown. Traces 



Develop in damp basements 



called black beetle and 



of wings on females: short 



and sewers: forage mostly 



shad roach). 



wings on males. Female 

 adults 1 to 1 '4 inches long; 

 male adults a little shorter. 

 More sluggish than other four 

 kinds. 



on first floors of buildings. 



1 Penplaneta americana. 



2 Periplaneta australasiae. 



Supella supellectilutm. 

 Blattella germamca . 



Blatta orientals. 



