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Notes on Locusts of Economic Importance, with some new Data on the Periodicity of Locust Invasion

Published online by Cambridge University Press:  10 July 2009

B. P. Uvarov
B. P. Uvarov
Affiliation:
Assistant Entomologist, Imperial Bureau of Entomology.
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Extract

The present paper is a part of the results of my revisional work on the group Cyrtacanthacrini, which includes all the swarming locusts except Locusta migratoria (L.), the latter having formed the subject of a previous paper. The revision itself, being of a purely systematic character and dealing also with a large number of species of no economic interest, is being published elsewhere, but I thought it might be useful to economic entomologists to give here the principal conclusions arrived at concerning the species of known agricultural importance, especially because this presents an opportunity of discussing some important points in the bionomics of swarming locusts which would be out of place in the revision itself.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 14 , Issue 1 , February 1923 , pp. 31 - 39
Copyright
Copyright © Cambridge University Press 1923

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References

* A revision of the genus Locusta, L. ( = Pachytylus, Fieb.), with a new theory as to the periodicity and migrations of locusts.—Bull. Ent. Res., xii, 1921, pp. 135–163.Google Scholar

† Ann. Mag. Nat. Hist., beginning April 1923.Google Scholar

‡ I am greatly obliged to the authorities of the United States National Museum and to Dr. A. N. Caudell for the loan of an extensive series of S. paranensis for this purpose.

* The term introduced by me in the paper on Locusta (l.c).

* There is in the British Museum one more male of this from, labelled “Matuku, 24.7.74,” brought home by the “Challenger” Expedition, but the occurence of the species in that locality (Fiji Islands) seems to me highly improbable, and this is probably a case of mislabelling.

* An evidently stray specimen has been recorded by me from that country.—Horae Soc. Entom. Ross., xl, no. 3, 1912, p. 31.Google Scholar

† I am inclined to attribute to this latter cause the comparative scarcity of the solitary phase in collections.

* Invasions des acridiens, vulgo sauterelles, en Algerie. Algier. 1893–1905.Google Scholar

† Die Wanderheuschrecken in Usambara in Jahre 1903–1904, zugleich ein Beitrag zu ihrer Biologie.—Ber. Land- u. Forstwirt. in D.-O.- Afrika, ii, 6, 1905.Google Scholar

* Die Ursachen der Heuschreckenplagen in Ostafrika.—Kosmos, 1921, No. 3.Google Scholar

† Sorauer, Handbuch der Pflanzenkrankheiten, iii, p. 182.Google Scholar

‡ DrRoepke, W.., Sprinkhanenplagen.—Teysmannia, xxvi, 1915, pp. 115–124; 337–358; 758–790.Google Scholar

§ Proc. Third Entom. Meeting at Pusa, i, 1920, p. 310.Google Scholar

* The Bombay Locust (Acridium succinctum, Linn.).—Mem. Dept. Agr. India, Entom. Ser., i, 1, 1906.Google Scholar

† Notes on Insects damaging Sugar-cane in Queensland.—Bureau Sug. Expt. Stat., Div. Entom., Bull. No. 3, 1916, p. 22.Google Scholar

‡ There should be other true swarming locusts in Australia, but exact records are lacking.

* I am inclined to think that this name might in some cases lead to the confusion of this species with Schistocerca gregaria, as this latter insect is red all over when migrating in sexually immature swarms. Thus it is not unlikely that some records of the “Red Locust” should be referred to S. gregaria.

† Tropenpflanzer, xx, 1917, no. 4, p. 169.Google Scholar

* Proc. Third Entom. Meeting at Pusa, i, 1920, p. 310.Google Scholar

† Mem. Dept. Agric. India, i, no. 1, p. 53, pi. xii, fig. 3;Google ScholarIndian Insect Life, p. 74, fig. 19.Google Scholar

‡ De dierlicke vijanden van het suikerriet en hunne parasieten, 1912, p. 279.Google Scholar