1925 ] 
Notes on Hippoboscidce 
275 
the Old World P. maura, I am unable to find any structural dif- 
ferences. Since, however, they are distinctly paler than the 
typical P. maura, I regard lividicolor as the Neotropical variety 
of that species. Bezzi (1909, Broteria, Ser. Zool., VIII, 2, p. 64) 
and Austen (1921, Bull. Ent. Research, XII, p. 122) regard the 
South American form as identical with P. maura. 
6. Pseudolynchia rufipes (Macquart.) 
Olfersia rufipes Macquart, 1848, Dipt. Exot., Suppl. Ill, 
p. 69 (Reunion; no host.) 
The species has not been properly recognized. 
7. Pseudolynchia simillima (Speiser.) 
Lynchia simillima Speiser, 1904, Ann. Mus. Civ. Genova, 
XLI, p. 337 (Java; no host.) 
This was based upon a specimen recorded as <( Olfersia spi- 
nifera” by van der Wulp (1880, Tijdschr. v. Entom., XXIII, 
p. 193.) Speiser’s description mentions no structural characters 
to separate it from the allied species. 
Of the seven species listed above, only two have been suf- 
ficiently characterized thus far. Probably several of the others 
are mere synonyms. 
Lynchia pusilla Speiser (1902, Zeitschr. Syst. Hym. Dipt., 
II, p. 157; Cuba) is the type of the genus Microlynchia, which 
differs from Pseudolynchia in the presence of minute ocelli and 
a differently shaped scutellum. I also regard Olfersia falcinelli 
Rondani (1879, Bull. Soc. Entom. Italiana, XI, p. 23; Malta) as 
a Microlynchia. The size is that of M. pusilla and the shape of 
the scutellum is the same. The ocelli were probably overlooked 
owing to their small size. 
ADDENDA. 
After the present paper was sent to the printer, I had oc- 
casion to examine many additional specimens of Pseudolynchia, 
from various sources. Since I was, nevertheless, unable to dis- 
tinguish more than the two species recognized above, I am more 
