scholarly journals Ecological studies of Culex tritaeniorhynchus summorosus (Diptera : Culicidae) : II. Observations on the resting behavior before and after taking blood meal

1969 ◽  
Vol 20 (2) ◽  
pp. 81-86 ◽  
Author(s):  
Yoshitake Wada
Keyword(s):  
Blood Meal ◽  
Ecological Studies ◽  
Culex Tritaeniorhynchus ◽  
Before And After ◽  
Resting Behavior

Does cuticular elasticity regulate the size of the blood meal imbibed by female Glossina austeni?

1983 ◽  
Vol 61 (8) ◽  
pp. 1888-1891 ◽  
Author(s):  
C. B. Carruthers ◽  
K. G. Davey
Keyword(s):  
Direct Measurement ◽  
Blood Meal ◽  
Meal Size ◽  
Tsetse Flies ◽  
Glossina Austeni ◽  
Before And After

In tsetse flies, a larva grows to maturity inside the uterus of the female. The size of the blood meal imbibed by females is known to increase at ovulation and decrease as the larva gets larger, so that the total volume of the fly remains constant. This has led to the hypothesis that meal size is determined by cuticular elasticity. Direct measurement of the elasticity of abdominal cuticle in mated females, before and after ovulation, and in virgin females, which do not ovulate, demonstrates that cuticular elasticity is unrelated to ovulation. Further, meal size is not closely correlated with cuticular elasticity. The hypothesis is therefore rejected.

THE FECUNDITY OF AEDES HEXODONTUS DYAR (CULICIDAE) IN THE LABORATORY

1955 ◽  
Vol 33 (6) ◽  
pp. 420-427 ◽  
Author(s):  
C. A. Barlow
Keyword(s):  
Constant Temperature ◽  
Blood Meal ◽  
Minimum Amount ◽  
Egg Development ◽  
Laboratory Conditions ◽  
Before And After ◽  
The Mean ◽  
Definite Correlation

The numbers of eggs laid by 654 Aedes hexodontus females, captured in the field, were examined under laboratory conditions in relation to three variables: nutrition, weight, and date of capture of the individuals. Females were weighed before and after engorging with blood and maintained in individual cages at a constant temperature of 20 °C. The mean fecundity of 198 females was 62.3 ± 2.16 eggs. A blood meal was necessary for oviposition in 95% of the individuals. Five per cent of the females oviposited without a blood meal. A diet of a single blood meal and water was insufficient for oviposition and either sugar or raisins was required to supplement the single blood meal. There was a definite correlation between weight and fecundity. Vertebrate blood was a stimulus to egg development. A critical minimum amount of blood was required to initiate ovulation, but blood in excess of this did not increase the number of eggs. No correlation was shown between the fecundity of females in the laboratory and the date of their capture.

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