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An Account of Schistocerca flavofasciata (De Geer 1773) in Trinidad (Orthoptera : Acrididae)

Published online by Cambridge University Press:  10 July 2009

D. Keith McE. Kevan
D. Keith McE. Kevan
Affiliation:
Department of Entomology, Imperial College of Tropical Agriculture, Trinidad.
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Extract

The genus Schistocerca is one of very great economic importance, since it includes the Desert locust of the Old World, Schistocerca gregaria (Forsk.) and the South American locust, S. paranensis (Burm.). It was therefore considered of value to study the life history of one of the solitary species living in Trinidad, and the present investigations were made during 1942 at the Imperial College of Tropical Agriculture at St. Augustine.

The climate of Trinidad is humid tropical. The annual rainfall over nineteen years at St. Augustine averaged 68·4 inches, but in the north-east of the Island the rainfall is over 100 inches per annum, falling to below 60 inches on the West coast. The rainy season usually begins about June, with a break in August or September, and lasts till the end of the year or the early part of January. November may be taken as one of the wettest months with a rainfall of about 11·5 inches (at St. Augustine), while more than half an inch is not usual for April. The humidity in November averages about 85 per cent. in the morning and 77 per cent. in the afternoon, but it is still high in April, being 75 per cent. and 64 per cent. for morning and afternoon respectively. The night humidities are even higher. The temperature remains practically constant throughout the year, averaging about 84°F. (29°C.) during the day, and 74°F. (23·3°C.) at night. The temperature may reach 95°F. (35°C.) during the day in the dry season, but it seldom falls as low as 65°F. (18·3°C.) at night.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 34 , Issue 4 , December 1943 , pp. 291 - 310
Copyright
Copyright © Cambridge University Press 1943

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References

Anonymous. (1915). Locusts.—Bull. Dep. Agric. Trin. Tob., 14, p. 64.Google Scholar
Bodkin, G. E. & Cleare, L. D. jr (1919). An invasion of British Guiana by locusts in 1917, with a complete illustrated account of the life history of the species.—Bull. ent. Res., 9, pp. 341–357.CrossRefGoogle Scholar
Bruch, C. (1936). Investigaciones sobre la langosta en la región serrana de Alta Gracia (Provincia de Córdoba).—Mem. Com, cent Invest. Langosta, 1934, pp. 173–202.Google Scholar
Bruch, C. (1939). Investigaciones sobre la langosta experimentos en cautividad (verano 1935–36 y parte de 1937).—Mem. Com, cent Invest. Langosta, 1936, pp. 143–170.Google Scholar
Bruner, L. (1906). Report on the Orthoptera of Trinidad, West Indies.—J. N. Y. ent. Soc., 14, pp. 135–165.Google Scholar
Daguerre, J. B. (1939). Informe de la comisión investigadora del Este.—Mem. Com. cent. Invest. Langosta, 1936, pp. 107–141.Google Scholar
De Geer, C. (1773). Mémoires pour servir à l'histoire des insectes, 3 (4), p. 489, pl. 40, fig. 8. (Not seen).Google Scholar
Faure, J. (1932). The phases of locusts in South Africa.—Bull. ent. Res., 23, pp. 295–424.CrossRefGoogle Scholar
Freeman, W. G. (1915). Report on locusts in Venezuela.—Bull. Dep. Agric. Trin. Tob., 14, pp. 191–194.Google Scholar
Hamilton, A. G. (1936). The relation of humidity and temperature to the development of three species of African locusts—Locusta migratoria migratorioides (R. & F.), Schistocerca gregaria (Forsk.) and Nomadacris septemfasciata (Serv.).—Trans. R. ent. Soc. Lond., 85, pp. 1–60.CrossRefGoogle Scholar
Hebard, M. (1923). Studies in the Dermaptera and Orthoptera of Colombia, third paper, Orthopterous family Acrididae.—Trans. Amer. ent. Soc., 51, pp. 285–287.Google Scholar
Husain, M. A. & Ahmad, T. (1936). Studies in Schistocerca gregaria Forsk. II. The biology of the desert locust with special relation to temperature.—Indian J. agric. Sci., 6, pp. 188–262.Google Scholar
Key, K. H. L. (1936). Observations on the rate of growth, colouration, and the abnormal six-instar life-cycle in Locusta migratoria migratorioides R. & F.—Bull. ent. Res., 27, pp. 77–85.CrossRefGoogle Scholar
Kirby, W. F. (1910). Synonymic Catalogue of Orthoptera, 3, pp. i–x, 1–674. British Museum (Natural History).Google Scholar
Köhler, P. (1936). Informe de la segunda comisión exploradora.—Mem. Com, cent. Invest. Langosta, 1934, pp. 71–95.Google Scholar
Köhler, P. (1937). Informe de la comisión investigadora del Oeste.—Mem. Com. cent. Invest. Langosta, 1935, pp. 11–69.Google Scholar
Liebermann, J. (1939). Informe acerca de los trabajos realizados en el insectario de José C. Paz en 1936.—Mem. Com. cent. Invest. Langosta, 1936, pp. 191–231.Google Scholar
Liebermann, J. (1939a). Catalogo sistematico y biogeografico de acridoideos argentinos.—Rev. Soc. ent. Argent., 10, pp. 125–230.Google Scholar
Lynch Arribalzaga, E. (1918). La langosta voladora de Colombia y Venezuela.—Physis, 4, pp. 49–79.Google Scholar
Marchionatto, J. B. (1933). Parásitos vegetales de la langosta. (In) Parásitos mas importantes de la langosta (Schistocerca paranensis Burm.) en la Repùblica Argentina.—Bol. Minist. Agric. Argent., 34, pp. 227–245.Google Scholar
Marchionatto, J. B. (1934). Los hongos parásitos de la langosta en la Repùblica Argentina. (In) Comisión nacional de defensa contra la langosta. Lucha nacional contra la langosta. Contribución cientifica de la Sociedad Entomólogica Argentina, pp. 43–53. Buenos Aires, Minist. Agric. Argent.Google Scholar
Rehn, J. A. G. (1916). The Stanford expedition to Brazil, 1911, J. C. Branner, director. Dermaptera and Orthoptera I.—Trans. Amer. ent. Soc, 42, pp. 215–308.Google Scholar
Rehn, J. A. G. & Rehn, J. W. H. (1940). The Orthoptera of the Philippine Islands, part II–Acrididae ; Cyrtacanthacridinae ; group Cyrtacanthacrides.—Proc. Acad. nat. Sci. Philad., 92, pp. 245–287.Google Scholar
Rubtzov, I. A. (1935). Phase variation in non-swarming grasshoppers.—Bull. ent. Res., 26, pp. 499–520.CrossRefGoogle Scholar
Scudder, S. H. (1899). The Orthopteran genus Schistocerca.—Proc. Amer. Acad. Arts Sci., 34, pp. 441–476. (Not seen).CrossRefGoogle Scholar
Serre, P. (1916). L'Ile de Trinité menacée d'une invasion de sauterelles.—Bull. Mus. Hist. nat., Paris, 2, pp. 101–104 [R.A.E. (A) 5, p. 192].Google Scholar
Urich, F. W. (1915). Locusts or grasshoppers.—Bull. Dep. Agric. Trin. Tob., 14, pp. 120–128.Google Scholar
Urich, F. W. (1915a). Insects affecting the sugar cane in Trinidad.—Bull. Dep. Agric. Trin. Tob., 14, pp. 156–161.Google Scholar
Urich, F. W. (1916). Notes on the South American locust, Schistocerca paranensis Burm.—Bull. Dep. Agric. Trin. Tob., 15, pp. 15–16.Google Scholar
Urich, F. W. (1916a). Notes on the South American migratory locust (Schistocerca paranensis).—Bull. Dep. Agric. Trin. Tob., 15, pp. 172–173.Google Scholar
Uvarov, B. P. (1928). Locusts and grasshoppers, a handbook for their study and control, pp. xiv+352 pp. London, Imp. Bur. Ent.Google Scholar