scholarly journals Biochemistry of locusts. 4. Insectorubin metabolism in the desert locust (Schistocera gregaria Forsk.) and the African migratory locust (Locusta migratoria migratorioides R. & F.)

1950 ◽  
Vol 47 (5) ◽  
pp. 554-562 ◽  
Author(s):  
T. W. Goodwin
Keyword(s):  
Locusta Migratoria ◽  
Desert Locust ◽  
Migratory Locust ◽  
Locusta Migratoria Migratorioides

scholarly journals SURVIVAL OF MIGRATORY LOCUST AT DIFFERENT KEEPING CONDITIONS

2020 ◽  
Author(s):  
A.B. Gerus ◽  
◽  
Y.S. Tokarev ◽  
G.R. Lednev ◽  
M.B. Levchenko ◽  
...  
Keyword(s):  
Survival Rate ◽  
Locusta Migratoria ◽  
Migratory Locust ◽  
Locusta Migratoria Migratorioides ◽  
Gregarious Locusts

In this article we studied the conditions for keeping two species of gregarious locusts: the African migratory locust (Locusta migratoria migratorioides) and the Asian migratory locust (Locusta migratoria migratoria) in open and shaded areas. Based on the data obtained, it is shown that the survival rate of insects of the non-diapausal subspecies was higher in comparison with the obligate monovoltine.

A Physiological Interpretation of the Marching of Hoppers of the African Migratory Locust (Locusta Migratoria Migratorioides R. & F.)

1954 ◽  
Vol 31 (2) ◽  
pp. 271-279
Author(s):  
PEGGY E. ELLIS ◽  
G. HOYLE
Keyword(s):  
Filter Paper ◽  
Potassium Salt ◽  
Locusta Migratoria ◽  
Sugar Solution ◽  
Migratory Locust ◽  
Low Concentration ◽  
Locusta Migratoria Migratorioides ◽  
Retarding Effect ◽  
Short Period ◽  
Blood Potassium

1. Hoppers of the locust Locusta migratoria migratorioides R. & F., which have been reared crowded, exhibit characteristic marching behaviour in the laboratory in foodless cages under standard conditions. 2. The rate of attainment of maximum marching by a given group of hoppers is greatest following a short period of starvation immediately preceding transfer to these conditions. 3. A meal of filter-paper soaked in sugar solution only, exerts no retarding effect on the rate of attainment of full marching, whilst if an adequate concentration of potassium salt is added in addition a definite retardation is observed. 4. In locusts actively feeding on grass the potassium content of the blood is relatively high, and it is suggested that this causes a reduced muscular efficiency which may explain retardation in attainment of full marching. 5. The marching pattern is the result of the activity of particular nerve centres which require a period of activation by a combination of factors before full expression is achieved. Two final factors are essential for the maintenance of the marching state, a low concentration of blood potassium and mutual stimulation by other marching hoppers.

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