Abstract
At the conclusion of a study of the specialized heat-sensitive areas on the surface of the body of more than 120 species of grasshoppers and locusts (Slifer, 1953b) it was stated that: “Those species of locusts and grasshoppers which occur in such large numbers as to be grave agricultural pests are all well provided with heat-sensitive areas.” The investigation had included such important plague species as Locusta migratoria migratorioides (Reiche and Fairmaire), Locustana pardalina (Walker), Nomadacris septemfasciata Serville, Schistocerca gregaria (Forskal), Camnula pellucida (Scudder), Melanoplus bivittatus (Say), Melanoplus differ entialis differentialis (Thomas), Melanoplus differentialis nigricans Cockerell, Melanoplus femur-rubrum femur-rubrum (DeGeer) and Melanoplus keeleri luridus (Dodge). Several other species which are of major economic importance had to be omitted because preserved material in Reiche suitable condition for study could not be obtained at the time. Dociostaurus maroccanus (Thunberg), the Moroccan locust, was one of these. Later, through the kindness of Mr. J. P. Dempster of the Department of Agriculture in Nicosia, Cyprus and Dr. S. Okay of the Department of Zoology at the University of Ankara in Ankara, Turkey, well-preserved specimens of the Moroccan locust were obtained and the results of an examination of this material are recorded here. In addition, a study has been made of four species which are closely related to the Moroccan locust. These were furnished by Dr. B. P. Uvarov of the Anti-Locust Research Centre in London.
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