80 
Psyche 
[June 
Soc., XXIV, pp. 129 and 133 (specimen from Orizaba, Mex- 
ico) . Since Prof. Swenk places his intertropica in the 
group of small species, the specimen could not have been 
Walker’s intertropica . It was probably either Lynchia 
alhipennis (Say) or a closely allied species. 
Ornithoponus intertropicus C. W. Johnson, 1924, Zoo- 
logica, New York, V, No. 8, p. 91 (off Butorides sundevalli ; 
Seymour Bay, Indefatigable, Galapagos) ; quoted by Cur- 
ran, 1932, Nyt Mag. Naturvid., LXXI, p. 366. I have seen 
this specimen; it belongs to one of the smaller species, re- 
lated to Lynchia alhipennis (Say) . 
Specimens Examined.— Prov. Quebec: Kamouraska (au 
Moulin), Kamouraska Co., off Duck Hawk, Falco peregri- 
nus anatum Bonaparte (W. LaBrie. — Dept. Agr. Canada, 
Ent. Br.) . — Colorado: Denver, off Red-tailed Hawk, Buteo 
borealis calurus (Cassin) (W. H. Bergtold) . — Montana: 
Truman Siding, Ravalli Co., off Red-tailed Hawk, Buteo 
borealis calurus (Cassin) (C. B. Philip).— New Mexico: 
(U. S. N. M.).— Texas: Elkhart, off a hawk (U. S. N. M.). 
- — Mexico : one female without definite locality (A. Duges. — 
Paris Mus. ; specimen doubtfully referred to Olfersia rapta- 
torum by Falcoz, 1930) ; Mexico City (U. S. N. M.) .—Pan- 
ama: Pacora, off Mexican Black Hawk, Buteogallus (or 
Urubitinga) anthracina anthracina (Lichtenstein) (L. H. 
Dunn). — Brazil: holotype, without more definite locality 
(Zook Mus. Munich) ; Rio Sao Francisco, State of Bahia, 
off a hawk No. 1004 (J. A. Allen, Thayer Exped.— M. C. 
Z.) .—Bolivia : Province Sara, one female (Steinbach. — 
M. C. Z.) . — -Galapagos Islands: Indefatigable Island, sev- 
eral specimens, off Buteo galapagoensis (Gould) (J. P. 
Chapin, Astor Exped. — Am. M. N. H.) . — -Hawaiian Is- 
lands: Kanai, off an owl (E. Knudsen). 
Synonymy. — Through the kindness of Dr. E. 0. Engel, 
I have been able to study Perty’s type of Hippobosca nigra , 
now preserved at the Bavarian Zoological Museum, Munich. 
I find that it is specifically identical with Walker’s Ornitho- 
myia intertropica and Speiser’s Olfersia acarta. 
Lynchia dukei (Austen) 
Olfersia dukei Austen, 1911, Bull. Ent. Res., II, p. 171 ( $ ; 
