( xlix ) 
Parca (Edith M.)., Eastern Aphids, new or little known. Part I. 
-  [Journ. Econ. Ent., Agric. Exp, Station, Maine, Vol. X, 1917.] 
An Infestation of Potatoes by a Midge. 
[ Journ. oe Ent., Agric. Exp. Station, Maine, Vol. X, No. 5, 
1917. 
--——— The Aphid of Chok2-cherry and Grain, Aphis pseudoavenae, n. sp. 
(Agric. Exp. Station, Maine, Bull. 267, Orono, 1917.] 
——_—— Wastern Aphids: A few species of Prociphilus. 
[Agric. Exp. Station, Maine, Bull. 270, Orono, 1917. ] 
——— Three Pink and Green Aphids of the Rose. 
[ Agric. Exp. Station, Maine, Bull. 282, Orono, 1919. ] 
——— A Psyliid Gall on Juncus (Livia maculipennis, ae 
[| Psyche Vol. XXIII, 
PrTERSEN (Esben). Mecoptera  Planipennia collected in Java by Edw. 
Jacobson. 
[ Notes from the Leyden Mus., Vol. XXXYV, 1913.] 
H. Donisthorpe. 
PEYERIMHOFF (P. de). [See JeEANNEL (R.).] 
Puiciies (W, J.). Studies on the Life-history and Habits of the Jointworm 
Flies of the g nus Harmolita (Zsosoma), with Recommendations 
for Control. 
[U.S. Dept. Agric., Ball. 808, Washington, 1920.] 
Pirrce (W. Dwight). Commercial and Professional Fntomology—The 
future of our Profession. 
[Journ. Econ. Ent.,Vol. XIII, Denver, 1920.] 
———— The Greatest Economical Agricultural Problem in America to-day. 
[Gage Pierce Research-Lab., Bull. 2, Denver, 1920.] 
Pororr (N.). [See Buayton (E.).] 
Porrivs (B.). Zur Kenntnis der Miriden, Anthocoriden und Nabiden Javas 
und Sumatyas. 
[Tijd. Ent., Deel LVI, Amsterdam, 1913.] H. Donisthorpe. 
Pou ton (Prof. E. B. ). Enmpidae and their Prey in relation to Courtship. 
[Ent. Monthly Mag., 2nd. Ser., Vol. XXIV, London, 1913.] 
—-— Mimicry in North American Bubtertias: A Reply. 
[Proz. Ac. Nat. Sci., Philadelphia, Jan, 1914.] 
———— (1) The term ‘‘ Mutition.” (2) Mimicry. (3) Mimicry vetween 
the genera of certain African Nymphaline Butterflies. 
[Brit. Ass. Birmingham, 1913.] 
———— A remarkable American work upon Evolution and the Germ 
Theory of Disease. 
[Proc. Linn. Soe, Ann. Addresses, London, 1913 and 1914. ] 
——-— W. A. Lamborn’s Breeding Experiments upon Acraea encedon, L. 
in the Lagos district of West Africa, 1910-12, 
{Linn. Soe. Journ. Zool., Vol. XXXII, London, 1914.] 
———— Obituary Notice of yee Friedrich Leopold Weismann. 
[Proc. Roy. Soc., Vol. LXX XIX, London, 1916.] 
———— Obituary Notice of Raphael Meldola. 
[Proc. Roy. Soc., Vol. XCIII, London, 1917.] 
———— Obituary Notice of Roland Trimen. 
| Proc. Linn. Soe. London, 1917.] 
———— Obituary Notice of Edward Saunders. 
—— ae 3, Octavius Pickard-Cambridge. 
—_—— » Roland Trimen. 
[ Proc. Roy. Soz., Vol. XCI, London, 1920.] 
——-— The Inspiration ie the Unknown (Presidential Address, S.E.U.S.8.). 
[S.E. Naturalist: Trans. §.E U.S.8., London, 1921.] 
The Author. 
d 
