Because parthenogenesis occurs in some Acrididae, testing the reproductive ability of virgin females is advisable before studying the effect of mating variations on grasshopper reproduction. In 1962, while adults were being reared for sexual attraction tests, several virgin females of the migratory grasshopper, Melanoplus sanguinipes (V.), and the differential grasshopper, M. differentialis (Thomas), laid eggs. Uvarov (1928) named 4 species of Acrididae in which parthenogenesis had been observed but it was not proved that the progeny could reach the adult stage or reproduce themselves. Hamilton (1955) listed 10 species and described his own experiments in which 6 successive generations of the desert locust, Schistocerca gregaria Forskal, were reared parthenogenetically. Later, Bergerard and Seuge (1959) observed hatching in about 20% of the eggs laid by virgin females of the migratory locust, Locusta migratoria L., but hardly 15% of the hatched nymphs reached the adult stage. These adults reproduced without fertilization. In 1963 virgin females of M. sanguinipes, M. differentialis, and the desert grasshopper, Trimerotropis pallidipennis pallidipennis (Burmeister), were observed for parthenogenesis and results are presented in this note.
Document Type: Research Article
Publication date: February 1, 1965
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Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.