[1921] 
xi. Insecta. 
Insecta. 7 
72. — Atkinson, D. J. Ips ( Tomicus) 
erosus in Britain. Ent. Mag. London 
57 1921 pp. 253-255. [Coloeptera] 
73. — Aurivillius, C. Neue Ceramby- 
ciden aus der Sammlung G. van Roon. 
Tijdschr. Ent. VGravenhage 64? 1921 
pp. 46-53 1 pi. [ Coleoptera .] 
73a. — Aurivillius, C. Descriptions of 
some South African Heterocera ( Lepido - 
ptera). Ann. S. Afric. Mus. Cape 
Town 18 1921 pp. 235-244. 
74. — Austen, E. E. The prey of the 
yellow dung-fly, Scatophaga stercoraria 
L. Ann. Nat. Hist. London 8 1921 
pp. 118-123. [Dipteral] 
75. — Austen, E. E. A contribution to 
knowledge of the blood-sucking Diptera 
of Palestine, other than Tabanidae. 
Bull. ent. Res. London 12 1921 pp. 
107-124 pi. iv. 
76. — Auzat, V. Description d'un 
nouveau Pachylopus d’Algerie. Bull. 
Soc. ent. France Paris 1921 p. 191. 
[Coleoptera.] 
77. — Ayyar, T. V. R. Short notes 
on new and known insects from South 
India. Rep. ent. meeting Pusa 4 
Calcutta 1921 pp. 29-40 pis. ii-vi. 
78. — Ayyar, T. V. R. A check list 
of the Coccidae of the Indian region. 
Rep. ent. meeting Pusa 4 Calcutta 1921 
pp. 336-362. [Homoptera.] 
79. — Ayyar, T. V. R. A list of 
parasitic Hymenoptera of economic 
importance from South India. Rep. 
ent. meeting Pusa 4 Calcutta 1921 
pp. 363-366. 
80. — Baer, W. Die Tachinen als 
Schmarotzer der schadlichen Insekten. 
lhre Lebensweise, wirtschaftliche Be- 
deutung utid systematische Kennzeich- 
nung. Zs. angew. Ent. Berlin 6 1920 
pp. 185-246; 7 pp. 97-163 349-423. 
[Diptera.] 
81. — Bagnall, R. S. On Thysanoptera 
from the Seychelles Islands and Rod- 
rigues. Ann. Nat. Hist. London 
7 1921 pp. 257-293 pis. iv-vii. 
82. — Bagnall, R. S. Brief descriptions 
of new Thysanoptera xi, xii. Ann. 
Nat. Hist. London 7 1921 pp. 355- 368 
figs. ; 8 pp. 393-400. 
83. — Bagnall, R. S. On Physolhrips 
latus Bagn., and some allied species. 
Ent. Mag. London 57 1921 pp. 61-64. 
I Thysanoptera.] 
84. — Bagnall, R. S. and Harrison, 
J. W. H. New British Cecidomyidae. 
Ent. Record London 33 1921 pp. 
151-155 166-169. [Diptera]. 
85. — Bagnall, R. S. and Harrison, 
J. W. H. Midge -galls of Yorkshire. 
Naturalist London 1921 pp. 337-341. 
[Diptera.] 
86. — Baker, A. C. On the family 
name for the plant lice. Proc. ent. 
Soc. Washington 23 1921 pp. 101-103. 
[Homoptera.] 
87. — Baldi, E. Ricerche sulla 
fisiologia del sistema nervoso negli 
insetti. Atti. soc. ital. sci. nat. Milan 
60 1921 pp. 11-33, 1 plate. 
88. — Balfour, A. Mosquito breeding 
in saline waters. Bull. ent. Res. 
London 12 1921 pp. 29-34. [Diptera.] 
89. — Ball, E. D. The smallest known 
Leaf Hopper. Proc. Biol. Soc. Wash- 
ington 34 1921 pp. 23-24. [Hemiptera.] 
90. — Ballard, E. Additions and 
corrections to the list of crop-pests in 
South India. Rep. Ent. meeting Pusa 
4 Calcutta 1921 pp. 21-28, pi. i. 
91. — Ballard, E. Report on campaign 
against Spodoptera mauritia in Malabar. 
Rep. ent. meeting Pusa 4 Calcutta 1921 
pp. 60-69, pis. viii-xii. [Lepido ptera] 
92. — Banks, N. New Nearctic 
Fossorial Hymenoptera. Ann. Ent. 
Soc. Amer. Columbus Ohio 14 1921 
pp. 16-26. 
93. — Banninger, M. Vierter Beitrag 
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Ent. Mitt. Berlin 10 1921 pp. 112-120, 
151-156. 
94. — Barber, H. C. Revision of the 
genus Lygaeus Fab. Proc. ent. Soc. 
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ptera] 
95. — Barber, H. G. Revision of the 
genus Ligyrocoris Stal (Hemiptera, 
Lygaeidae). J. New York Ent. Soc. 29 
1921 pp. 100-114. 
96. — Barber, G. W. Cicadella gothica 
Sign. A correction. Psyche Boston 
Mass. 28 1921 p. 130. [Homoptera] 
97. — Barber, G. W. Collecting about 
Walden pond. Canad. Entom. Guelph 
53 1921 pp. 145 & 146. 
