Arnold, G. 1932. The Psammocharidae of the Ethiopian
region. Part I. Subfamily Pepsinae. Annals of the Transvaal Museum 14:
284-396.
Arnold, G. 1932. The Psammocharidae of the Ethiopian
region. Part II. Annals of the Transvaal Museum 15: 41-122.
Arnold, G. 1933.
Entomological expedition to Abyssinia, 1926-7. Hymenoptera, II.: Sphegidae and
Psammocharidae. With an introductory note and supplementary list by Hugh Scott,
Sc. D. The Annals and Magazine of Natural History 11: 351-371.
Arnold, G. 1933.
New African Hymenoptera. Occasional Papers of the Rhodesian Museum 2:
51-56.
Arnold, G. 1934. The Psammocharidae of the Ethiopian
region. Part III. Annals of the Transvaal Museum 15: 283-399.
Arnold, G. 1934.
New African Hymenoptera No. 2. Occasional Papers of the Rhodesian Museum 3: 18-28.
Arnold, G. 1935. The Psammocharidae of the Ethiopian
region. Part IV. Annals of the Transvaal Museum 15: 413-483.
Arnold, G. 1935.
Scientific results of the Vernay-Lang Kalahari expedition, March to September, 1930. Sphegidae and
Psammocharidae. Annals of the Transvaal Museum 16: 497-505.
Arnold, G. 1935.
Mission J. de Lépinay au Soudan Français (1933-1934) (Douzième note).
Hyménoptères. On some fossorial Hymenoptera from the Soudan. Bulletin de la
Société des Sciences Naturelles du Maroc 15: 1-9.
Arnold, G. 1935.
Some considerations on a recent classification of the family Psammocharidae
(Hymenoptera). Occasional Papers of the National Museum of Southern Rhodesia
4: 29-30.
Arnold, G. 1936. The Psammocharidae of the Ethiopian
region. Part V. Annals of the Transvaal Museum 18: 73-12.
Arnold, G. 1936. The Psammocharidae of the Ethiopian
region. Part VI. Annals of the Transvaal Museum 18: 415-460.
Arnold, G. 1936.
New African Hymenoptera No. 3. Occasional Papers of the Rhodesian Museum
5: 1-38, pl. I.
Arnold, G. 1937. The Psammocharidae of the Ethiopian
region. Part VII. Annals of the Transvaal Museum 19: 1-98.
Arnold, G. 1939.
Notes on some African Pompilidae and descriptions of new species. Occasional Papers of the National
Museum of Southern Rhodesia 8: 49-65.
Arnold, G. 1940.
New species of African Hymenoptera No. 4. Annals of the Transvaal Museum
20: 101-143, pl. V.
Arnold, G. 1943.
Hymenoptera. Family Psammocharidae. Exploration du Parc National Albert. I.
Mission G.F. de Witte (1933-1935), Brussels, Fasc. 43:******
Arnold, G. 1944.
New species of African Hymenoptera. No. 5. Occasional Papers of the National
Museum of Southern Rhodesia 11: 1-38.
Arnold, G. 1946.
New species of African Hymenoptera. No. 6. Occasional Papers of the National
Museum of Southern Rhodesia 12: 63-97.
Arnold, G. 1947.
New species of African Hymenoptera. No. 7. Occasional Papers of the National
Museum of Southern Rhodesia 13: 131-167.
Arnold, G. 1948.
New species of African Hymenoptera. No. 8. Occasional Papers of the National
Museum of Southern Rhodesia 14: 213-250.
Arnold, G. 1949.
New species of African Hymenoptera. No. 9. Occasional Papers of the National
Museum of Southern Rhodesia 15: 261-275.
Arnold, G. 1951.
Sphecidae and Pompilidae (Hymenoptera) collected by Mr. K.M. Guichard in West
Africa and Ethiopia. Bulletin of the British Museum (Natural History).
Entomology 2: 95-183.
Arnold, G. 1952.
New species of African Hymenoptera No. 10. Occasional Papers of the National
Museum of Southern Rhodesia No. 17:460-493.
Arnold, G. 1955.
New species of African Hymenoptera No. 11. Occasional Papers of the National
Museum of Southern Rhodesia No. 20:733-762.
Arnold, G. 1956.
New species of African Hymenoptera No. 12. Occasional Papers of the National
Museum of Southern Rhodesia No. 21B:52-77.
Arnold, G. 1958.
New species of African Hymenoptera No. 13. Occasional Papers of the National
Museum of Southern Rhodesia No. 22B:119-143.
Arnold, G. 1959.
New species of African Hymenoptera No. 14. Occasional Papers of the National
Museum of Southern Rhodesia No. 23B:316-339.
Arnold, G. 1960.
New species of African Hymenoptera No. 15. Occasional Papers of the National
Museum of Southern Rhodesia No. 24B:452-488.
Arnold, G. 1960.
Aculeate Hymenoptera from the Drakensberg Mountains, Natal. Annals of the
Natal Museum 15:79-87.
Arnold, G. 1962.
New species of African Hymenoptera No. 16. Occasional Papers of the National
Museum of Southern Rhodesia No. 26B:844-855.
Banks, N. 1940.
Some Psammocharidae from Madagascar (Hymenoptera). Proceedings of the
Academy of Natural Sciences of Philadelphia 92: 335-362.
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