8 lnaeeta 
XII. Insecta. 
[1918] 
I.— TITLES. 
Adkin, R. The abundance of white 
butterflies in 1917. Entom. London 51 
1918 (36-39, 56-59). [ Lepidoptera .] 1 
Adkin, R. The weather of 1916 and. 
the occurrence of some of the commoner 
butterflies at Eastbourne. Proc. South 
London Ent. Soc. 1917-18 1918 (8-12). 
[ Lepidoptera .] 2 
Adler, — . Zur Biologic von Apan- 
telcs glomeratua L. Zeitsehr. wiss. 
Insbiol. Berlin 14 1918 (182-186). 
[ Hymenoptera .] 3 
Aldberg, O. Beitrage zur Deutung 
der Zetterstedtschen Thrips-Arten. Ent. 
Tidskr. Uppsala 39 1918 (140-142). 
[ Thysanoptera .] 4 
Ainslie, G. G. Color variation in 
pupae of Terias nicippe Cramer. P. 
ent. Soc. Washington 19 1918 (78). 
[Lepidoptera.] 5 
Ainslie, C. N. A note on the economic 
importance of Sarnia cecropia. Proc. 
ent. Soc. Washington 20 1918 (150-152). 
[ Lepidoptera .] 6 
Ainslie, G. G. Contributions to a 
knowledge of the Crambinae of North 
America. Ann. ent. Soc. Amer. Colum- 
bus 11 1918 (51-62). [ Lepidoptera .] 7 
Aldrich, J. M. Two new Hydrolaea. 
( Diptera , Antliomyiidao). Canad. En- 
tom. London Can. 60 11) 18 (311-313). 8 
Aldrich, J. M. New and little-known 
Canadian Oscinidae. Canad. Entom. 
London Can. 50 1918 (336-343). [Di- 
pteral • 9 
Aldrich, J. M. The anthomyiid genus 
Pogonomyia. Ent. News Philadelphia 
29 1918 (179-184). [ Diptera .] 10 
Aldrich, J. M. Notes on Diptera . 
Psyche Boston 25 1918 (30-35). 11 
Aldrich, J. M. Seasonal and climatic 
variation in Creodonta. Ann. ent. Soc. 
Amer. Columbus 11 1918 (63-66). 
[Diptera.] 12 
Aldrich, J. M. The kelp-flies of 
North America (genus Fucellia). Proc. 
California Ac. San Francisco 4 1918 
(157-179). [Diptera.] 13 
Aldrich, J. M. Samuel Wendell 
Williston. Ent. News Philadelphia 29 
1918 (322-327) portrait. [Diptera.] 14 
Alexander, C. P. Records of Japanese 
crane-flies. Ann. ent. Soc. Amer. 
Columbus 11 1918 (443-449). [Di- 
ptera.] 15 
Alexander, C. P. New species of 
tipuline crane-flies from eastern Asia. 
J. New York ent. Soc. 26 1918 (66-74). 
[Diptera.] 16 
Alexander, C. P. New nearctic crane- 
flies (Tipulidae, Diptera). Part iv. 
Canad. Entom. London Can. 50 1918 
(60-71). 17 
Alexander, C. P. New nearctic crane- 
flies. Part v. Canad. Entom. London 
Can. 50 1918 (158-165 242-246). [Di- 
opter a.] 18 
Alexander, C. P. New nearctic crane- 
flies (Tipulidae, Diptera). Part vi. 
Canad. Entom. London Can. 50 1918 
(381-386 411-415). 19 
Alexander, C. P. A new interpreta- 
tion of the wing-venation of the pedicino 
orano-llies (Tipulidae, Diptera). Ent. 
News Philadelphia 29 1918 (201-205). 
pi. xii. 20 
Alexander, C. P. New species of 
crane-flies from California. Ent. News 
29 1918 (285-288). [Diptera.] 21 
Alla?d, H. A. Rhythmic synchron- 
ism in the chirping of certain crickets 
and locusts. Amer. Natural. New York 
52 1918 (548-552). [Orthoptera.] 22 
