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Cockerell, T.D.A. 1910. Some new american bees. The Canadian Entomologist 42:169-171.
Cockerell, T.D.A. 1911. Bees in the collection of the U. S. National Museum. 1. Proceedings of the United States National Museum 39:635-658.
Cockerell, T.D.A. 1911. Bees in the collection of the United States National Museum. 2. Proceedings of the United States National Museum 40 (1818):241-264.
Cockerell, T.D.A. 1911. Descriptions and records of bees. - XL. The Annals and Magazine of Natural History ser. 8: v. 8 (48):763-770.
Cockerell, T.D.A. 1911. Descriptions and records of bees. - XXXVIII. The Annals and Magazine of Natural History ser. 8: v. 8 (44):283-290.
Cockerell, T.D.A. 1911. Some bees from western Canada. The Canadian Entomologist 43 (1):33-34.
Cockerell, T.D.A. 1911. Records of bees. The Canadian Entomologist 43 (11):389-391.
Cockerell, T.D.A. 1911. A new Chalcidid from oak gall (Hym.). Entomological News 22 (2):82.
Cockerell, T.D.A. 1911. Some new bees from flowers of Cactaceae. The Canadian Entomologist 43 (4):131-132.
Cockerell, T.D.A. 1911. New and little known bees. Transactions of the American Entomological Society 37:217-241.
Cockerell, T.D.A. 1911. Descriptions and records of bees. - XXXIX. The Annals and Magazine of Natural History ser. 8: v. 8 (47):660-673.
Cockerell, T.D.A. 1912. New and little-known bees. The Entomologist 45:175-178.
Cockerell, T.D.A. 1912. Descriptions and records of bees. - XLV. The Annals and Magazine of Natural History ser. 8: v. 10 (55):21-31.
Cockerell, T.D.A. 1912. Descriptions and records of bees. - XLVII. The Annals and Magazine of Natural History ser. 8: v. 10 (59):484-494.
Cockerell, T.D.A. 1912. Descriptions and records of bees. - XLIII. The Annals and Magazine of Natural History ser. 8: v. 9 (52):377-387.
Cockerell, T.D.A. 1912. Names applied to bees of the genus Nomada, found in North America. Proceedings of the United States National Museum 41:225-243.
Cockerell, T.D.A. 1912. Names applied to bees of the genus Osmia, found in North America. Proceedings of the United States National Museum 42:215-225.
Cockerell, T.D.A. 1912. Descriptions and records of bees. - XLIV. The Annals and Magazine of Natural History ser. 8: v. 9 (53):554-568.
Cockerell, T.D.A. 1912. New bees from Brazil. Psyche 19 (2):41-61.
Cockerell, T.D.A. 1912. Some parasitic bees (Coelioxys). The Canadian Entomologist 44 (6):165-170.
Cockerell, T.D.A. 1912. Descriptions and records of bees. - XLI. The Annals and Magazine of Natural History ser. 8: v. 9 (49):139-149.
Cockerell, T.D.A. 1912. Descriptions and records of bees. - XLVI. The Annals and Magazine of Natural History ser. 8: v. 10 (57):311-320.
Cockerell, T.D.A. 1912. New records of bees (Hymen.). Entomological News 23:444-447.
Cockerell, T.D.A. 1912. Canadian bees in the British Museum. The Canadian Entomologist 44:354-358.
Cockerell, T.D.A. 1913. Descriptions and records of bees. - LIV. The Annals and Magazine of Natural History ser. 8: v. 12 (70):368-376.
Cockerell, T.D.A. 1913. Meliponine bees from Central America. Psyche 20:10-14.
Cockerell, T.D.A. 1913. Descriptions and records of bees. - LII. The Annals and Magazine of Natural History ser. 8: v. 11 (66):530-542.
Cockerell, T.D.A. 1913. Descriptions and records of bees. - LIII. The Annals and Magazine of Natural History ser. 8: v. 12 (67):103-110.
Cockerell, T.D.A. 1913. Descriptions and records of bees. - XLIX. The Annals and Magazine of Natural History ser. 8: v. 11 (62):185-195.
Cockerell, T.D.A. 1913. New parasitic Hymenoptera of the genus Eiphosoma. Proceedings of the United States National Museum 46:61-64.
Cockerell, T.D.A. 1913. Two new canadian bees. The Canadian Entomologist 45 (1):12-14.
Cockerell, T.D.A. 1913. A new bee of the genus Emphor. Psyche 20:107.
Cockerell, T.D.A. 1913. Names applied to the Eucerine bees of North America. Proceedings of the United States National Museum 43:261-273.
Cockerell, T.D.A. 1913. Descriptions and records of bees. - XLVIII. The Annals and Magazine of Natural History ser. 8: v. 11 (61):54-65.
Cockerell, T.D.A. 1914. New and little known bees. The Entomologist 47 (611):115-119.
Cockerell, T.D.A. 1914. Descriptions and records of bees. - LVII. The Annals and Magazine of Natural History ser. 8: v. 13 (75):277-286.
Cockerell, T.D.A. 1914. Bees from Ecuador and Peru. Journal of the New York Entomological Society 22:306-329.
Cockerell, T.D.A. 1914. Descriptions and records of bees. - LX. The Annals and Magazine of Natural History ser. 8: v. 14:1-13.
Cockerell, T.D.A. 1914. Bees visiting Thurberia. Proceedings of the Entomological Society of Washington 16:31-32.
Cockerell, T.D.A. 1914. Descriptions and records of bees. - LXIII. The Annals and Magazine of Natural History ser. 8: v. 14:361-369.
Cockerell, T.D.A. 1914. Descriptions and records of bees. - LVIII. The Annals and Magazine of Natural History ser. 8: v. 13 (76):424-433.
Cockerell, T.D.A. 1914. Bees visiting Helianthus. The Canadian Entomologist 46 (12):409-415.
Cockerell, T.D.A. 1915. The real Trigona dorsalis Smith rediscovered (Hym.). Entomological News 26 (1):30-32.
Cockerell, T.D.A. 1915. Descriptions and records of bees. - LXVIII. The Annals and Magazine of Natural History ser. 8: v. 16:1-9.
Cockerell, T.D.A. 1915. Descriptions and records of bees. - LXV. The Annals and Magazine of Natural History ser. 8: v. 15:261-269.
Cockerell, T.D.A. 1915. Descriptions and records of bees. - LXVII. The Annals and Magazine of Natural History ser. 8: v. 15:529-537.
Cockerell, T.D.A. 1915. Names applied to the North American bees of the genera Lithurgus, Anthidium, and allies. Proceedings of the United States National Museum 47:87-94.
Cockerell, T.D.A. 1915. Descriptions and records of bees. - LXX. The Annals and Magazine of Natural History ser. 8: v. 16:482-489.
Cockerell, T.D.A. 1915. New californian bees. Pomona Journal of Entomology and Zoology 7 (4):230-233.
Cockerell, T.D.A. 1915. New Mutillidae from California. The Entomologist 48 (630):249-250.
Cockerell, T.D.A. 1916. Descriptions and records of bees. - LXXII. The Annals and Magazine of Natural History ser. 8: v. 17:428-435.
Cockerell, T.D.A. 1916. Some bees from British Guyana. Occ. Papers Mus. Zool. Univ. of Michigan 24:1-3.
Cockerell, T.D.A. 1916. Some California bees. The Canadian Entomologist 48:391-393.
Cockerell, T.D.A. 1916. Bees from the northern peninsula of Michigan. Occ. Papers Mus. Zool. Univ. of Michigan 23:1-10.
Cockerell, T.D.A. 1916. New and little known bees from California. Pomona Journal of Entomology and Zoology 8 (2):43-64.
Cockerell, T.D.A. 1916. New and little-known bees. The Entomologist 49:156-160.
Cockerell, T.D.A. 1916. Descriptions and records of bees. - LXXI. The Annals and Magazine of Natural History ser. 8: v. 17:277-287.
Cockerell, T.D.A. 1916. Some neotropical parasitic bees (Hym.). Entomological News 27:208-210.
Cockerell, T.D.A. 1916. The bees of the Coronado Islands. The Canadian Entomologist 48 (2):54-58.
Cockerell, T.D.A. 1916. Some Rocky Mountain Andrenid bees. The Canadian Entomologist 48:252-254.
Cockerell, T.D.A. 1916. Some bees from Colorado. The Entomologist 49 (636):100-102.
Cockerell, T.D.A. 1916. Sunflower insects in California and South Africa. The Canadian Entomologist 48:76-79.
Cockerell, T.D.A. 1917. A second Colletes with spotted wings (Hym.). Entomological News 28 (8):363.
Cockerell, T.D.A. 1917. Descriptions and records of bees. - LXXVII. The Annals and Magazine of Natural History ser. 8: v. 20 (118):298-304.
Cockerell, T.D.A. 1917. Descriptions and records of bees. - LXXV. The Annals and Magazine of Natural History ser. 8: v. 19 (114):473-481.
Cockerell, T.D.A. 1917. New social bees. Psyche 24 (4):120-128.
Cockerell, T.D.A. 1917. Some Euglossine bees. The Canadian Entomologist 49 (4):144-146.
Cockerell, T.D.A. 1917. Descriptions and records of bees. - LXXVI. The Annals and Magazine of Natural History ser. 8: v. 20 (117):235-241.
Cockerell, T.D.A. 1917. New bees from Costa Rica (Hym.). Entomological News 28 (5):200-201.
Cockerell, T.D.A. 1917. Some neotropical Megachilid bees. The Canadian Entomologist 49:252-254.
Cockerell, T.D.A. 1917. Descriptions and records of bees. - LXXVIII. The Annals and Magazine of Natural History ser. 8: v. 20 (120):436-441.
Cockerell, T.D.A. 1918. A group of american halictine bees simulating the Old-World genus Nomioides. The Canadian Entomologist 50:348-349.
Cockerell, T.D.A. 1918. The bee-genus Brachynomada. The Canadian Entomologist 50:26-28.
Cockerell, T.D.A. 1918. A new colletid bee from Ecuador. Proceedings of the Entomological Society of Washington 20 (9):206-207.
Cockerell, T.D.A. 1918. Descriptions and records of bees. - LXXXII. The Annals and Magazine of Natural History ser. 9: v. 2 (12):476-482.
Cockerell, T.D.A. 1918. Descriptions and records of bees. - LXXIX. The Annals and Magazine of Natural History ser. 9: v. 1 (2):158-167.
Cockerell, T.D.A. 1918. Descriptions and records of bees. - LXXXI. The Annals and Magazine of Natural History ser. 9: v. 2 (11):418-425.
Cockerell, T.D.A. 1918. Neotropical bees, principally collected by Professor Bruner in Argentina. Transactions of the American Entomological Society 44:25-38.
Cockerell, T.D.A. 1918. Some bees of the genus Panurginus (Hym.). Entomological News 29:169-171.
Cockerell, T.D.A. 1918. Bees from British Guiana. Bull. American Mus. Nat. Hist. 38:685-690.
Cockerell, T.D.A. 1919. The bees of the Rocky Mountain National Park (Hymenop.). Entomological News and Proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia 30 (10):286-294.
Cockerell, T.D.A. 1919. New and little-known american bees. The Canadian Entomologist 51 (2):26-28.
Cockerell, T.D.A. 1919. The bees of Peaceful Valley, Colorado. Journal of the New York Entomological Society 27:298-300.
Cockerell, T.D.A. 1919. Descriptions and records of bees. - LXXXIII. The Annals and Magazine of Natural History ser. 9: v. 3 (13):118-125.
Cockerell, T.D.A. 1919. Neocorynura, a genus of Halictine bees (Hym.). Entomological News 30:158-159.
Cockerell, T.D.A. 1919. The bees of Gold Hill, Colorado. The Canadian Entomologist 51:271-273.
Cockerell, T.D.A. 1919. Bees in the collection of the United States National Museum. Proceedings of the United States National Museum 55 (2264):167-221.
Cockerell, T.D.A. 1919. Descriptions and records of bees. - LXXXVI. The Annals and Magazine of Natural History ser. 9: v. 4 (20):98-104.
Cockerell, T.D.A. 1919. Descriptions and records of bees. - LXXXVII. The Annals and Magazine of Natural History ser. 9: v. 4 (23):355-360.
Cockerell, T.D.A. 1919. Some halictine bees in the United States national museum. Proceedings of the Entomological Society of Washington 20:177-182.
Cockerell, T.D.A. 1920. Some neotropical Meliponid bees. Bull. Amer. Mus. Nat. Hist. 42:459-468.
Cockerell, T.D.A. 1921. The epeoline bees of the American Museum Rocky Mountain expeditions. American Museum Novitates 23:1-16.
Cockerell, T.D.A. 1921. Descriptions and records of bees. - XCI. The Annals and Magazine of Natural History ser. 9: v. 8 (45):359-368.
Cockerell, T.D.A. 1921. Descriptions and records of bees. - XC. The Annals and Magazine of Natural History ser. 9: v. 7 (39):201-212.
Cockerell, T.D.A. 1921. Some parasitic Megachilid bees of the Western United States. American Museum Novitates 21:1-11.
Cockerell, T.D.A. 1921. Western bees obtained by the American Museum expeditions. American Museum Novitates 24:1-15.
Cockerell, T.D.A. 1922. Descriptions and records of bees. - XCIII. The Annals and Magazine of Natural History ser. 9: v. 9 (52):360-367.
Cockerell, T.D.A. 1922. Descriptions and records of bees. - XCVI. The Annals and Magazine of Natural History ser. 9: v. 10 (59):544-549.
Cockerell, T.D.A. 1922. Descriptions and records of bees. - XCII. The Annals and Magazine of Natural History ser. 9: v. 9 (51):242-249.
Cockerell, T.D.A. 1922. Descriptions and records of bees. - XCIV. The Annals and Magazine of Natural History ser. 9: v. 9 (54):660-668.