ACARI. 
Arachn . 35 
Ornithodoros moubata , transmitting Tick Fever, p. 244 ; Dutton & Todd, 
J. trop. Medicine 1905 : 0. moubata , p. 225 ; Massey, t. c. : 0. mou- 
bata, glands, p. 1696, feeding, p. 1696, development, p. 1697 ; New- 
stead, Brit. Med. J. 1905. 
Oxopsis n. g. diplodontoides, White Nile, p. 3, text-fig. 1 ; Nordenskiold, 
Res. Swedish Zool. Exped. Egypt and White Nile ii, 1905, n. sp. 
Oxus strigatus , p. 202, pi. xiv, ovalis , p. 206, pi. xiv, lcoenikci, p. 209, pi. xv, 
lonqisetus, p. 214, pi. xv ; Koenike, Zeitschr. wiss. Zool. lxxxii : 0 . 
nodigerus , p. 60, pi. 1 ; Koenike, Abh. Ver. Bremen xviii. 
Pachylcelajps ( Platylcelaps) latus, Java, p. 165, pi. xvi, P. equestris, p. 164, 
pi. xvi ; Berlese, Redia ii, n. spp. 
P. siculus , p. 5, pi. i, tetragonoides, p. 7, pi. i ; Oudemans, Mem. Soc. zool. 
France xvi. 
Paraphytoptus septemscutatus , p. 142, pi. iii ; Nalepa, Denk. Ak. Wien 
lxxvii. 
Parasitidce, key to arctic subfamilies, p. 28 ; TragArdh, Fauna Arctica iv 
Parasitus spinipediformis , Greenland, p. 37, text-figg. 71-76 ,fucicola, p. 38, 
text-figg. 77-82 ; TragArdh, t. c. ; P. mustelarum , , p. 78, pi. ii, robustus , 
p. 82; Oudemans, Abh. Ver. Bremen xviii : n. spp. 
P. delta , France, p. 223, pi. 8, iota , , Netherlands, p. 225, pi. 8, ajfinis , p. 227, 
pi. 9 ; Oudemans, Tijdschr. Ent. xlviii : P., list of hosts, p. 206, 
coleoptratorum, p. 210, brcmensis, p. 210, pi. -xii, consanquineus , p. 212, 
pis. xii & xiii, eta, p. 215, pi. xiii, consimilis, p. 216, pi. xiv, congener , 
p. 218, pi. xiv, beta, p. 219, pi. xv, alpha, p. 220, pi. xv, theta, p, 222, 
pis. xv & xvi, zeta, p. 222, pi. xvi, setosus, p. 224, pi. xvi, consors, p. 225, 
pi. xvii ; Voigts & Oudemans, Abh. Ver. Bremen xviii : P., key to 
species, p. 35, bomborum, p. 35, text-fig. 65, spinipes, p. 36, text-figg. 66- 
70, coleoptratorum, p. 39; TragArdh, Fauna Arctica iv: P. crinitus, 
p. 79, pi. ii, burchanensis , p. 80, pi. iii, tricuspidatus, p. 81, pi. iii ; 
Oudemans, Abh. Ver. Bremen xviii : P. minor , p. 202 ; Oudemans, 
Tijdschr. Nederland. Dierk. Ver. 1904 (viii). 
Parhvpochthonius n. g. aphidinus , p. 25, pi. ii; Berlese, Redia ii, n. sp. 
Penthaleus arcticus, p. 42, text-figg. 90-92, hcematopus, p. 43, text-fig. 93, 
insidanus, p. 44; TragArdh, Fauna Arctica iv. 
P. agilis , Java, p. 157, pi. xv; Berlese, Redia ii, n. sp. 
Pergamasus gamma , p. 227, pi. xvii; Voigts & Oudemans, Abh. Ver. 
Bremen xviii. 
Photia n. g. for Canestrinia procrusti , p. 192 ; Oudemans, Ent. Ber. Neder- 
land. 1904. 
Phtiracarus minimus, p. 22, cribrarius , Norway, p. 23 ; Berlese, Redia ii, 
n. spp. 
Phyllocoptes vitis , p. 268; Nalepa, Anz. Ak. Wiss. 1905: P. cornutus , 
Washington, p. 141, text-fig. 17 ; Banks, P. ent. Soc. Washington vii : 
n. spp. 
Phytoptipalpus n. g. parqdoxus, p. 10, pi. i : TragArdh, Res. Swedish 
Zool. Exped. Egypt and White Nile.ii, 1905, n. sp. 
Phytoptus sp., p. 103 ; Peglion, Marcellia iv : P. spp., causing galls, 
p. 182 ; Brehm, t. c. : P. linderce, p. 196, text-fig. 15 ; Kieffer, 
Ann. Soc. Bruxelles xxix. 
Pigmephorus americanus, Columbia, p. 139 ; Banks, P. ent. Soc. Washing- 
ton vii : P. cultratus,, p. 11, pi. i, cultratus var. minor n. var., p. 11, 
pi. i, abdomincdis, p. 12, pi. i, manicatus , p. 12, pi. i, inconspicuus , 
p. 12, pi. i ; Berlese, Redia ii : n. spp. 
Pimeliaphilus n. g. podapolipophagus, Egypt, p. 32, pi. ii ; TragArdh, 
Res. Swedish Zool. Exped. Egypt and White Nile ii, 1905, n. sp. 
Piona anisitsi, Paraguay, p. 321, pi. xxiii ; Dad ay, Zoologica xliv, 
n. sp. 
Platylcelaps n. subg. of Pachylcelaps, p. 165 ; Berlese, Redia ii. 
