20 Insecta. 
XII. Insecta. 
[1917] 
Clavareau, H. Description d’une 
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[Coleoptera.) 281 
Clemens, W. A. Rearing experi- 
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282 
Clemens, W. A. An ecological study 
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5 pis. 283 
Closs, A. Einigo neue Sphingiden. 
Ent. Mitt. Berlin 6 1917 (33-34). 
[ Lepidoptera .] 284 
Closs, A. Ueber einige Heteroceren. 
Ent. Mitt. Berlin 6 1917 (129-135) pi. v. 
[ Lepidoptera .] 285 
Ciutterbuck, C. G. Notes on the 
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Cockayne, E. A. The condition of 
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1917 (165-168) pi. xi. [ Lepidoptera .) 
287 
Cockayne, E. A. Gynandromorphous 
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1917 (322-335) pis. xciii-civ. 288 
Cockayne, E. A. The relation be- 
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Cockayne, E. A. An intersex of 
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290 
Cockerell, T. D. A. Report on a 
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Cockerell, T. D. A. Arthropods in 
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Cockerell, T. D. A. A fossil tsetse 
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Cockerell, T. D. A. Descriptions of 
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Cockerell, T. D. A. Fossil insects. 
Ann. ent. Soc. Amer. Columbus 10 
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Cockerell, T. D. A. Insects in bur- 
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Cockerell, T. D. A. Arthropods in 
burmese amber. Psyche Boston 24 
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Cockerell, T. D. A. New social bees. 
Psyche Boston 24 1917 (120-128). 
[ Hymenoptera .] 298 
Cockerell, T. D. A. The fauna of 
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Bull. Univ. Colorado 17 1917 (5-25). 
299 
Cockerell, T. D. A. The carpenter 
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[ Hymenoptera .] 300 
Cockerell, T. D. A. Some Euglossine 
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49 1917 (144-146). [Hymenoptera.) 301 
Cockerell, T. D. A. Some neotropical 
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Cockerell, T. D. A. Descriptions and 
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Cockerell, T. D. A. Descriptions and 
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London 19 1917 (473-481). [Hymen- 
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Cockerell, T. D. A. Descriptions and 
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London 20 1917 (235-241). [Hymen- 
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Cockerell, T. D. A. Descriptions and 
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London 20 1917 (298-304). [Hymen- 
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Cockerell, T. D. A. Descriptions and 
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{Hymenoptera .) 307 
Cockerell, T. D. A. Some Japanese 
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