640 GORDON B. THOMPSON 



Mallophaga. 



Menoponidae. 



2. Menopon sp. 



A single female said to have been taken from Spheniscus magellaniciis 

 Forst. which is undoubtedly an error. It is definitely one of the larger Meno- 

 ponidae and the correct host is probably either an Albatross or a Petrel. 



3. Colpocephalum sp. 



A single female from Cerchneis sparverius feniandensis Chap., Masatierra, 

 28. I. 1917. 



[Tetrophthalmus chilensis Grosse. 



Tetrophthahmis chihiisis Grosse, 1885, Z. wiss. Zoo!., XLIII, p. 530. Tetrophthal- 

 }nus chilensis Grosse, Ferris, 1928, Parasitology, XX, p. 224, f. 8. 



Several females and males from Pclecanus occidentalis thagiis Molina, Chile, 

 Coronel, 14. VII. 1917. 



The original description of this species was from Pelecanus sp. (Chile) but 

 as Fh;rrfs has suggested the type host may be taken to be Pelecanus occiden- 

 talis thagns Molina. The specimens at hand agree very well with Ferris' 

 redescription and figures.] 



4. Ancistrona vagelli (Fabricius). 



Pediculus vagelli Fabricius, 1787, Mant. Ins., p. 369. Aticistrotia vagelli (Fabri- 

 cius), Thompson, 1935, Ann. Mag. nat. Hist., Ser. 10, XVI, p. 398. 



Several females said to have been taken off Puffinus creatopus Cones, 

 Masatierra 26. I. 1917 & Pterodroma neglecta Schleg., same locality and date. 



I have commented previously on the apparent rarity of the males of this 

 large species. 



Philopteridae. 



5. Austrogoniodes bifasciatus (Piaget). 



Gomocotes bifasciatus Piaget, 1885, Les Pediciilines, Suppl., Leiden, p. 47, 

 Pi. 5, f. 6. Austrogoniodes strutheus Harrison, 1915, Parasitology, VII, p. 398, 

 PI. 27, f. 6. 



A few specimens of this interesting species were accompanied by quite 

 incorrect host data in the collection. Owing to the distinctive character of the 

 species I have no hesitation in stating that they were quite definitely obtained 

 from Spheniscus magellanicus Forst., specimens of which were collected by the 

 expedition at Santa Clara & Masatierra. 



