22 Insecta. 
XII. Insecta. 
[1919] 
Clark, B, P. Now ainerican Sphingi- 
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[Lepidoptera.] 329 
Clark, B. P. New Sphingidao. Proc. 
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6 1917 (57-72) pis. vii-ix. [Lepido- 
ptera.] * 330 
Clark, B. P. Some undescribed 
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Cl. Cambridge Mass. 6 1919 (99-114) 
pis. x-xii. [Lepidoptera.] 331 
Claycomb, G. B. Notes on the habits 
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Cleare, L. D. A useful breeding 
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Cleare, L. D. Insect camouflage. 
Timehri Demerara 6 1919 (136-144) pi. 
334 
Cleare, L. D. vide Bodkin and Cleare. 
Cleghorn, Maude L. A note on the 
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1919 (101-105) pis. iii and iv. {Lepido- 
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Clermont, J. Description d’un 
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Clermont, J. Contribution la fauno 
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Clermont, J. Description de la 
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Bull. Soc. ent. Franco Paris 1919 1919 
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Cockayne, E. A. Inhoritanco of 
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1919 (101-104). [Lepidoptera.] 339 
Cockerell, T. D. A. The oldest 
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(44) . [Diptera.] 340 
Cockerell, T. D. A. Miocene fossil 
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Cockerell, T. D. A. Bees in the collec- 
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[Hyrnenoptera.] 342 
Cockerell, T. D. A. Some halictine 
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20 1919 (177-181). [Hyrnenoptera.] 343 
Cockerell, T. D. A. A new colletid 
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Washington 20 1919 (206). [Hyineno- 
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Cockerell, T. D. A. A new mono- 
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Ent. Concord 12 1919 (272). [Homo- 
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Cockerell, T. D. A. Descriptions and 
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[Hyrnenoptera.] 346 
Cockerell, T. D. A. Descriptions and 
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Hist. 3 1919 (191-198). [Hymeno- 
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Cockerell, T. D. A. Descriptions and 
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Cockerell, T. D. A. Descriptions and 
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Hist. London 4 1919 (98-104). [ILj- 
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Cockerell, T. D. A. Descriptions and 
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nat. Hist. London 4 1919 (355-360). 
[Hyrne^wptera.] 350 
Cockerell, T. D. A. Some fossil 
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New Haven 47 1919 (376-380). 351 
Cockerell, T. D. A. Now and little- 
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London Can. 61 1919 (20-28). [Hymeno- 
ptera.] 352 
Cockerell, T. D. A. A now Coccid on 
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London Can. 51 1919 (110). [7/omo- 
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Cockerell, T. D. A. The variation of 
insects. Canad. Entom. London Can. 
51 1919(121-123). 354 
Cockerell, T. D. A. The bees of Gold 
hill, Colorado. Canad. Entom. London 
Can. 61 1919 (271-273). [Hymeno- 
ptera.] 355 
