[Development of cysticercoid larva of Hymenolepis nana var. fraterna in Tenebrio molitor and Leucophaea maderae haemoceles (author's transl)].

When embryos of Hymenolepis nana var. fraterna are injected abdominally, they are able to reach the cysticercoid stage in the haemocele of Leucophaea maderae which naturally resist to infection by ingestion of the eggs. The haemocytic defence reaction of the cockroach and the structure of the surface of larvae are examined and compared with development in a natural host Tenebrio molitor.