62 Inaecta, 
XII. Insecta. 
[1919] 
Pictet, A. Influence do la pression 
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C.R. Geneve Bull. Soc. L6pidopt. 3 
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1332 
Pictet, A, Reactions dos Insoctos 
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Gon6vo Bull. Soo. L6pidopt 8 1914-17 
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Pictet, A. Observations biologiques 
sur lo developpomont do Mamestra 
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1334 
Pictet, A. Los reactions des insoctos 
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1335 
Pierce, W. D. Contributions to our 
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Washington 21 1919 (21-36). [Goleo- 
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Pierce, W. B. Some new phases of 
the entomology of disease brought 
about by the groat war. J. econ. Ent. 
Concord 12 1919 (42-48). 1337 
' Pierce, W. B. vide Hutchison and 
Pierce. 
Pierre, C. Dipthrea onvoy<5s au 
Mus6um de Paris par I’arm^o d’Oriont ; 
Nomatocera polynoura. Bull. Mus. 
Paris 25 1919 (612-619). 1338 
Pierre, C. Nervulations anormales 
do quolquos Dipthres tipuliformes (2o 
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1919 (75 and 76). 1339 
Pierre, C. Bescriptions de deux 
PaxJiyrhina nouveaux de France. Bull. 
Soc. ent. France Paris 1919 1919 (284- 
286). [Diptera.'] 1340 
Pillai, R. M. An attack of Nephantis 
serinopa on coconut palm in Travan- 
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(668-669) 2 pis. [Lepidoptera.] 1341 
Pittaluga, A. and de Buen, S. Espfeces 
espanolas del genero Phlebotomus (Ins. 
Diptera). Bol. Soc. Espan. Hist. Nat, 
Madrid 18 1918 (377-385) 2 pis. and 8 
figs. 1342 
Platt, 0. E. The prevalence of 
Phormia azurea Fallon (larva parasitio 
on nestling birds) in the Puget Sound 
and data Qp undoscribed flics of 
similar habit. (Together with descrip- 
tions of the two new flies by C. H. T. 
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Amor. Ent. Soc. Columbus 12 1919 
(373-381). [Diptera.] 1343 
Platt, 0. E. Parasitism of nestling 
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21 1919 (30-38). [Diptera.] 1344 
Plough, H. H. Linear arrangement 
of genes and double crossing over. 
Pi‘. Ac. Sci. Washington 5 1919 (167- 
168). [Diptera.] 1345 
Poirson, H. Un cas do pscudo- 
parasitismo intestinal par larvos do 
Charan9on. Paris Bull. soc. path. exot. 
10 1917 (385). [Coleoptera.] 1346 
Pongrdez, A. Boitriige zur Pscudo- 
nouropteren- und Nouropterenfauna 
Polens. Ann. Mus. Hungar. Budapest 
17 1919 (161-177). 1347 
Poppius, B. Ucbersicht dor Pilo- 
phonis- Avion nebst Boschroibungen vor- 
wandten Gattungon. Ann.’ Soc. ent. 
Belgique Bruxelles 58 1914 (237-254). 
[II eteroptera.] 1348 
Poppius, B. Einige none Miriden- 
Gattungen und Arten aus Nord- 
Amorika und Cuba. Ann. Soc. ent. 
Belgique Bruxelles 58 1914 (255-261). 
[H eteroptera.] 1349 
Poppius, B. Zur Konntnis dor 
indo-australischon Lygua-Avion. Ann. 
Mus. hlungar. Budapest 12 1914 (337- 
398). [H eteroptera.] 1350 
Poppius, B. H. Sauter’s Formosa- 
Ausbouto : Nabidae, Anthocoridae, 
Tormatophylidao, Miridao, Isomoto- 
pidao und Ceratocombidao. Arch. 
Nat urges Berlin 80 A 8 1915 (1-80). 
[H eteroptera.] 1351 
Poppius, B. Zur Kenntnis dor indo- 
australischen Capsaricn. Ann. Mus. 
Hungar. Budapest 13 1915 (1-89). 
[H eteroptera.] 1352 
Poppius, B. Lepidoptera aus dem 
Sarekgebirge. Mit einem Nachtrag 
von Yngve Sjostedt. Naturw. Unters. 
des Sarekgebirges gel. von Axel Ham- 
berg 4 Lfg 7 Stockholm 1919 (763-778). 
1353 
Porter, A. How insects have affected 
human progress. S. Afrie. Geogr. 
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1354 
