I've bought some roaches (2 species of Therea)from Arthropodia, a french breeding center... there is not a site, but you can download a PDF containing pricelist and address here:
List
They sell stick insects, mantids, roaches and so on....
I'm a professional Pest Control Operator and a roach breeder...
Blatta lateralis grows and breeds very slow under 24-26°C (and does not reproduce under 20°C)... I confirm that some well positioned glue traps are enough to control escapees...
I bought two Peripatoides novaezealandiae from UK last year ... I kept them cold and humid as requested, but they both died in some months...
Here it was going to eat a little roach just glued to the substrate...
I bought three adults (one male and two females) on sunday...
I'll be very grateful for every suggestion about setup, temperature, humidity and food...
and, of course, I'll post some pictures ASAP...
Blattella lays the first ootheca 8 days after its last moult.
It can produce 4-8 oothecas in its adult life, every 22 days.
Medium hatching time: 17 days
Number of eggs in a ootheca: 37 (but only 28 will hatch)
Time to reach adulthood: 40-41 days
Number of moults: 5-7
Adult life: 128-153 days
Blattella germanica actually represents the 80-85% of my PCO's work...
But Supella longipalpa is coming up really fast... three homes infested in last three days...