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Undated
Notes on Urortalis caudatus
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Eucallimyia fortis
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Sciomyza florissant …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Oxycera rohweri
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Nemotelus prisculus
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Psilocephala hypoga …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Psilocephala scudde …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Rueppellia vagabund …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Rueppellia vagabund …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Rueppellia vagabund …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Psilocephala scudde …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Diptera
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Science, pages iii-vi
Cockerell, Theodore D. A. (T …
[periodicals, application/pd
Undated
Notes on Agrion exsularis
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Lithagrion hyalinum
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Phenacolestes miran …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Melanagrion umbratu …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Coenagrionidae
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Hesperagrion praevo …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Lithagrion hyalinum
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Lithagrion hyalinum
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Lithagrion hyalinum
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Dysagrion spp.
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Phenacolestes miran …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Phenacolestes miran …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Melanagrion nigerri …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Phenacolestes sp.
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Boyeria sp.
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Odonata
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Odonata
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Oplonaeschna lapida …
[Unidentified author, Cocker
[research notes, application
Undated
Notes on Lithaeschna needham …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Basiaeschna solida
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Basiaeschna solida
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Aeschna solida
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Odonata
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Lithaeschna needham …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Odonata
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Odonata
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Odonata
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Hoplonaeschna separ …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Aeschna solida
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Aeschna spp.
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Orthoptera
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Labiduromma exsulat …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Lithophotina flocco …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Capnobotes silens
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Palaeorehnia macula …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Palaeorehnia macula …
Cockerell, Theodore D. A. (T …
[research notes, application
Undated
Notes on Orthoptera
Cockerell, Theodore D. A. (T …
[research notes, application