198 



BULLETIN 140, UNITED STATES NATIONAL MUSEUM 



4(V long by 24/x wide, containing fully developed embryos when 

 deposited. 



Larva, second stage, 12 to 35 mm. long in intermediate host. 



Life history. — The eggs from the female worms pass out in the 

 droppings of the chickens and are ingested by the white ants, or 

 termites, locally known as the " Houtkapper." Only worker ants are 

 found infested, the soldier ants not being found infested. The 

 embryo escapes from the shell and passes to the abdominal cavity, 

 where the young worm developes to the second larval stage. When 

 infested ants are fed to chickens, the worms continue their develop- 

 ment in the chicken intestine and become mature worms in 3 weeks. 



Pig. 269. — Hartertia gallinauum. Male tail and spicules. Original 



Distribution. — Africa (Orange Free State and Belgian Congo). 



Through the courtesy of Sir Arnold Theiler and of Dr. H. O. 

 Monnig, the present writer has been granted permission to make this 

 further study and allocation of Filaria gallinarum, from specimens 

 which had been furnished to the U. S. Bureau of Animal Industry 

 collections by Doctor Theiler. The nematode appears to agree in all 

 respects with the generic diagnosis of Hartertia. 



HARTERTIA ROTUNDATA (Linstow, 1883) Seurat. 1915b 



Synoyins. — Filaria rotundata linstow, 1883; Habronema rotun- 

 data (Linstow, 1883) Seurat, 1914 g and n, not Habronema rotun- 

 data (Linstow, 1906) Seurat, 1914 / (see Hartertia confusa, p. 195). 



Hosts. — Primary : Houbara undalaia, Oedienemus oedicnemus, 

 O. vermicularis, Otis afroides, O. nvacqueeni, O. ruficresta and 

 Plocepasser mahali. Immature forms, probably of this species, 



