[Development of the filaria Litomosoides galizai in the acarian vector].

L. galizai develops in the gamasid B. bacoti in 11 days at 28 degrees C. Molts I and II take place respectively 5 and 7 days after feeding. The development is studied in the adult female mites; as for the laboratory filaria L. sigmodontis, the interstitial tissue is the main parasitized organ; microfilariae penetrate in the two cell types which constitute it: adipose cells and secretory cells (these secretory cells are described here for the first time). The filariae develop also in the salivary glands, the digestive wall, the genital envelopes and exceptionally in the coxal and vaginal glands. The filariae produce the formation of syncytia. Larvae which stay in the haemocele do not develop.