254 Ins. 
DIPTERA. 
HiPPOBOSCIDiE. 
Ornithomyia nigricans, Leach, noticed ; Van der Wulp, Midden-Suma- 
tra, Dipt. p. 57. 
Ornithomyia synallaxides, sp. n., Arribdlzaga, S. E. Z. xlii. p. 192, and 
Exped. Rio Negro, Zool. p. 90. Parasitic on Synallaxis {Bathmicercus) 
patagonica (Lafr.), Gray, Patagonia. 
Nycterihia : on the ovi position and larva of a species observed by 
Humbert in Ceylon ; Osten-Sacken, Tr. E. Soc. 1881, pp. 359-361, pi. xvi. 
N. jenynsi, Westw., noticed ; Van der Wulp, Midden-Sumatra, Dipt, 
p. 58. 
Nycterihia minuta, sp, n., id. 1. c. p. 58, Sumatra. 
(APHANIPTERA.) 
Pulicidj:. 
Weyenbergh, H. Sobre la familia Pulicidce, con descripcion de al- 
gunas nuevas especies. Period. Zool. Argent, iii. pp. 261-277. 
A list of species, according to Ritsema ; notes on those previously 
described by the author, and descriptions of several new ones. 
Pulex, The mandibles form a proboscis by the union of their den- 
tated sides, and are placed almost between the eyes. Between the man- 
dibles is a small denticulated organ, or “ languette,” which appears to be 
analogous to the piston-like organ (stylum) of the bee; Bielet, Bull. Soc. 
Vaud. (2) xvii. p. vi. 
Pulex, sp. on rabbit infested with numerous specimens of Acarellus ; 
two curious appendages resembling palpi situated just above pygidium, but 
not present in other species examined : Lewis, J. Quek. Club, vi. pp. 168 
& 169. 
Pulex parviceps, sp. n., Weyenbergh, Bol. Ac. Arg. iii. pp. 194-212, 
Argentine Republic. 
Ceratophyllus rufulus and isidori, id. Period. Zool. Argent, iii. pp. 265 
& 271, Argentine Republic : spp. nn. 
Pulex {Hectopsylla?') testudo, p. 267, P. nasuce, p. 272, ohscurus, p. 273, 
concoloris and cavicola, p. 274, id. 1. c., spp. nn. 
