102 Psyche [March-June 
1940, Mem. Soc. Cubana Hist. Nat., XIV, p. 322; 1940, Rev. 
Acad. Colombiana Cienc. Ex. Fis. Nat., Ill, pt. 12, p. 416; 
1941, Occ. Papers B. P. Bishop Mus., XVI, p. 281; 1942, Bol. 
Entom. Venezolana, I, p. 82. 
This species will be fully discussed in the forthcoming revi- 
sion of North American Hippoboscidae. 
Additional Neotropical Specimens. — Mexico: Nayarit, off 
“Chicken Hawk” (Amer. Mus. Nat. Hist.). Chichen Itza, 
Yucatan, off Geranospiza nigra (Du Bus), Buteo magnirostris 
conspectus (Peters) and Asturina nitida plagiata Schlegel (J. 
Van Tyne). San Carlos Bay, Sonora, off Buteo borealis calurus 
(G. Augustson). Los Frailes Bay, Lower California, off Poly- 
borus cheriway audubonii Cassin (G. Augustson). Pedregal, 
Munic. Tancitaro, 6,000 ft., Michoacan, off Buteo borealis (H. 
Hoogstraal). La Puerta de Hambre, Munic. Apatzingan, 1,200 
ft., Michoacan, off Falco mexicanus Schlegel (R. Traub). Apat- 
zingan, Munic. Apatzingan, 1,200 ft., Michoacan, off young 
Hawk (R. Traub). — Republic of Honduras: Subirana, Yoro 
(Stadelmann). — Venezuela: San Felipe, off Herpetotheres 
c. cachinnans Linne (P. Anduze). — British Guiana: Upper 
Rupununi River (Ogilvie) . — Brazil: Maracaju, Matto Grosso, 
off Cathartes aura (Linne) and “gaviao” or fulvous-bellied Kite 
(R. M. Gilmore). 
In North America L. nigra is known from British Columbia, 
Quebec, New York, Kansas, Colorado, Utah, Arizona, New 
Mexico, Montana and Texas. It has also been taken in the 
Galapagos, Hawaii, and Bolivia. 
All the known hosts are diurnal birds of prey. 
Lynchia dukei (Austen) 
Oljersia dukei Austen, 1911. See J. Bequaert, 1933, p. 80. 
Since publishing this paper I have examined the type at the 
British Museum. 
Additional Specimens. — Belgian Congo: Butiaba, Lake 
Albert, off Haliceetus vocifer (Daudin) (A. Meinertzhagen). 
The specimen previously recorded from Ganda Sundi was off 
Hieraaetus ayresii (Gurney). — Cameroon: Metet, off a Hawk 
Osw. Cruz, VII, p. 181 ) should be deleted. The specimens which these authors 
referred to L. nigra were almost certainly L. fusca (Macquart), while their 
Oljersia raptatorum was possibly L. nigra. 
