55 lnsecta. 
Titles. 
3500 
Pantel, J. et Sin6ty, R. de. Reac- 
tion chromatique et non chromatique 
de quelques Phasmides aux excitations 
dependant de la lumi&re. Bull. Sci. 
France Belgique Paris 52 1918 (177- 
283) pi. ii. [ Orthoptera .] 1132 
Parker, R. R. A new species of 
Sarcophaga from Niagara falls. J. New 
York ent. Soc. 26 1918 (28-30). [Di- 
ptera.] 1133 
Parker, R. R. A now spoicos of 
Sarcophaga from British Columbia. 
Canad. Entom. London Can. 50 1918 
(122-124). [Diptera.] 1134 
Parker, R. R. A new species of 
Sarcophaga from California. J. Ent. 
Zool. Claremont 10 1918 (32 & 33). 
[Dipteral 1135 
Parker, J. R. The life history and 
habits of Chloropisca glabra Meig., a 
predaceous oscinid. J. ocon. Ent. 
Concord 11 1918 (308-380). [Dipteral 
1136 
Parker, R. R. Data concerning flies 
that frequent privy- vaults in Montana 
Ent. News Philadelphia 29 1918 
(143-146). [Diptera.] H37 
Parshley, H. M. II emipterologic&X 
notes. Psyche Boston 25 1918 (64-65). 
1138 
Patch* Edith M. Pink and green 
aphid of potato. Bull. Maine exp. 
stat. Orono 242 1915 (205-223) pis. 
[Ilomoptcra! 1189 
Patch, Edith M. Tho aphid of choke- 
cherry and grain. Bull. Maine exp. 
Stat. Orono 267 1917 (293-297) pi. 
[Homoptera.] 1140 
Patch, Edith M. Eastern aphids, a 
few species of Prociphilus. Bull. 
Maine exp. Stat. Orono 270 1918 
(45 & 46). [Homoptera.] 1141 
Patch, Edith M. Food-plant catalogue 
of the Aphidao of tho world. Part V. 
Bull. Maine exp. Stat. Orono 270 
1918 (47-100). [Homoptera. ] 1142 
Paterson, J. T. Studies on the biology 
of Parapociclosomopsis, IV, the asexual 
larva. Biol. Bull. Woods Holo 35 1918 
(362-376) 3 pis. [Ilymenoptera.] 1143 
Payne, F. The effect of artificial 
selection on bristle number in Droso- 
phila ampelopila. Proc. Indiana Ac. 
Indianopolis 1917 1918 (249). [Di- 
pteral ' H44 
Peacock, A. D. The structure of 
the mouthparts and mechanism of 
feeding in Pediculus humanus. Parasit- 
ology Cambridge 11 1918 (98-117) pi. 
vi. [Ellipoptera.] 1145 
P6ju, G. et Cordier, E. Epidemie 
palustre et conditions de Panophelisme 
on Argonne. C. R. Soc. Biol. Paris 81 
1918 (1039-1041). [Diptera.] 1146 
Pellett, F. C. Life-history and habits 
of Polistes metricus Say. Proc. Iowa 
Acad. Des Moines 23 1916 (275-284). 
[Hymenoptera.] 1147 
Pemberton, C. E. and Willard, H. F. 
Fruit-ply parasitism in Hawaii during 
1916. J. Agric. Res. Washington 12 
1918 (103-108). [Hymenopteral 1148 
Pemberton, C. E. and Willard, H. F. 
Interrelations of fruit-fly parasites in 
Hawaii. J. Agric. Res. Washington 
12 1918 (285-296) pis. x-xiii. [Hymeno- 
ptera.] 1149 
Pemberton, C. E. and Willard, H. F. 
A contribution to the biology of fruit- 
fly parasites in Hawaii. J. Agric. Res. 
Washington 15 1918 (419-466) figs. 
[Hymenoptera.] 1150 
Pemberton, C. E. and Willard, H. F. 
Work and parasitism of the mediter- 
ranean fruit-fly in Hawaii during 1917. 
J. Agric. Res. Washington 14 1918 
(605-610). [Hymenoptera. ] 1151 
Pemberton, C. E., vide Back and 
Pemberton. 
Penecke, K. A. Mesagroicus hoffcri 
sp. n. Wiener ent. Zeit. Wien 36 1917 
(219-221). [Coleoptera.] 1152 
Pennington, M. S. Notas sobre la 
larva y la pseudo -imagen de la Nezara 
abnormis Berg. Physis Buenos Aires 4 
1918 (332-334). [Heteroptera.] 1153 
Perkins, R. C. L. The synonymy of 
Andrena wilkella Kirby and its qllies, 
with notes on habits as confirming 
specific distinctions. Ent. Mo. Mag. 
London 54 1918 (36-38)., [Hymeno- 
ptera.] 1154 
Perkins, R. C. L. Synopsis of 
British Strepsiptera of tho genera 
Stylops and Halictoxenus. Ent. Mo. 
Mag. London 54 1918 (67-76) pi. i. 
1155 
Perkins, R. C. L. Halictoxenus 
arnoldi, an undescribed British stylopid. 
Ent. Mo. Mag, London 54 1918 (107). 
[Strepsiptera.] 1156 
