266 



IXDhX. 



Phvgadeitoti speculator, parasite of 

 Calliplioya erythrocephala in 

 Britain, 22. 



Phvllodyomia gertnanica (see 



Blattella). 



Picric Acid, effect of, on mosquito 

 larvae, 211. 



pictipennis, Culicoides. 



pictipes, Rhodmus. 



pictum, Simulium. 



picfus, Anoplieles (see A. hyycanus). 



Pig Louse (see Haematopinus suis). 



Pigeons, new mites on, in Texas, 

 166 ; measures against parasites 

 (jf, in U.S.A., 84 ; Pedicidus 

 humanus not expsrimentally feed- 

 ing on, 145. 



pigyitia, Trypanosoma cazalhoiii. 



Pigs, measures against parasites of, 

 52, 99, 107, 138, 200 ; not 

 susceptible to A iia plasma argen- 

 titium, 41 ; preferred to man 

 by mosquitos, 33, 98, 142 ; used 

 in traps for mosquitos, 219. 



pilosus, Trichodectes. 



Pine-Tar, in cattle dips, 72. 



pipiens, Culex. 



Piroplasma, A naplasma not identical 

 with, 18. 



Piroplasma argentinum, transmitted 

 by Boophilus- annulatiis, 66, 165. 



Piroplasma bigeminum, ticks trans- 

 mitting, in Angola, 167 ; trans- 

 mitted by Boophilus annulatus in 

 Brazil, 68 ; transmitted by 

 Boophilus annulatus in Dominica, 

 126 ; infesting cattle in Gold 

 Coast, 62 ; ticks conveying, in 

 Guam, 74 ; list of ticks trans- 

 mitting, 165. 



Piroplasma bovis, transmitted by 

 Ixodes ricinus, 165. 



Piroplasma caballi, experiments in 

 transmission of, by ticks, 152 ; 

 distinct from Nuttallia equi, 45 ; 

 transmitted by Dermacentor reti- 

 culatus in Russia, 194. 

 Piroplasma canis, carried by 

 Rhipicephalus sanguineus in 

 Queensland, 74 ; transmitted by 

 ticks in Tunis, 67. 

 Piroplasma hudsonius bovis, prob- 

 ably transmitted by Dermacentor 

 veniistus in British Columbia, 166. 

 Piroplasmosis (Redwater), ■ of 

 domestic animals in East Africa, 

 148, 211 ; transmitted by Mar- 

 garopus annulatus microplus in 

 Argentina, 18 ; of cattle in 

 Brazil, 66, 187 ; of cattle trans- 

 mitted by Boophilus annulatus in 



Cuba, 31 ; of cattle in Dominica, 

 128 ; of cattle in France, 19 ; of 

 dogs conveved by Dermacentor 

 reticulatus in France, 41 ; of 

 horses, ticks transmitting, in 

 Germany, 151, 152 ; of cattle, 

 ticks conveying in Guam, 74 ; of 

 horses, ticks conveying, in Mace- 

 donia, 193, 194 ; of cattle in 

 Nyasaland, 70 ; of cattle in 

 Rhodesia, 137, 199 ; of dogs, ticks 

 transmitting, in Tunisia, 67 ; list of 

 ticks transmitting, to cattle, 165; 

 of horses, causative agents of, 45. 



Pisobia minutilla, useful against 

 Lyperosia irritans in Porto Rico, 

 201. 



Pistia stratiotes (Water Lettuce), in 

 Brazil, 28 ; mosquitos breeding 

 amongst, in Panama Canal Zone, 

 175. 



Pity my s savii, parasites of, in Italy, 



2oi: 



Plague, relation of rat-fleas to, 3, 

 76, 102, 202 ; ground-squirrels 

 infected with, in California, 157 ; 

 not present in French Guiana, 

 110 ; need for measures against, 

 in India, 106 ; at Naples, 202. 



Plague Flea (see Xenopsylla cheopis). 



Planaria, attacking mosquito larvae 

 in Argentina, 163. 



Plasmodium bubalis, sp. n., found 

 in blood of buffalo in India, 58. 



Plasmodium falciparum (see P. 

 praccox) . 



Plasmodium m.alariae (Quartan 

 Malaria), percentage of, in French 

 Equatorial Africa, 18 ; not found 

 in Brazil, 27. 



Plasmodium praccox (Malignant 

 Tertian Malaria), percentage of, 

 in French Equatorial Africa, 18 ; 

 in Algeria, 16 ; occurrence of, in 

 Germany, 63 ; transmission of, 

 by Anophelines in Malaya, 80 ; 

 proportion of sexes of gametes of, 

 108 ; requiring a higher tempera- 

 ture for development than P. 

 vivax, 177 ; considered distinct 

 from P. vivax, 195. 



Plasmodium relictum, diagnosis of, 

 in birds, 39, 166. 



Plasmodium vivax (Benign Tertian 

 Malaria), percentage of, in French 

 Equatorial Africa, 18 ; infection 

 of Anophelines with, in British 

 Isles, 96, 177, 192 ; cases of 

 malaria due to, in France, 40 ; 

 transmission of, by Anophelines 

 in MalsLva., 80 ; longevity of 



