Studies of Variation in Insects
Studies of Variation in Insects
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05 mm. Long while one with wing only 3. 38 mm. Long has the vein 1. 14 mm. Long (wing lengths below mode and vein lengths above mode). The variation in venation is manifestly not a simple function of the variation in size of wing in this lot of mosquitoes.
In a lot of adult mosquitoes, Culex incidens^ emerged in the laboratory from larvae and pupae collected at one time (Septem- ber 16, 1901) from a watering trough, the variation in size (length) of wings and in length of third longitudinal vei...n (same as in case of the salt marsh mosquitoes referred to above) were studied in 30 males and 30 females.
In the males the length of third longitudinal vein ranges from . 95 mm. To 1. 2 mm. The mode being 1. 03 mm. The mean 1. 07, the standard deviation . 63 mm. And the coefficient of varia- tion 5. 86.
In the females the length of the vein ranges from 1. 02 to 1. 27, STUDIES OF VARIATION IN INSECTS 257 the mode being 1. 2 mm. , the mean 1. 16 mm. , the standard deviation . 7 mm. And the coefficient of variation 6.
What to read after Studies of Variation in Insects?
You can find similar books in the "Read Also" column, or choose other free books by Vernon L Vernon Lyman Kellogg to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
05 mm. Long while one with wing only 3. 38 mm. Long has the vein 1. 14 mm. Long (wing lengths below mode and vein lengths above mode). The variation in venation is manifestly not a simple function of the variation in size of wing in this lot of mosquitoes.
In a lot of adult mosquitoes, Culex incidens^ emerged in the laboratory from larvae and pupae collected at one time (Septem- ber 16, 1901) from a watering trough, the variation in size (length) of wings and in length of third longitudinal vei...n (same as in case of the salt marsh mosquitoes referred to above) were studied in 30 males and 30 females.
In the males the length of third longitudinal vein ranges from . 95 mm. To 1. 2 mm. The mode being 1. 03 mm. The mean 1. 07, the standard deviation . 63 mm. And the coefficient of varia- tion 5. 86.
In the females the length of the vein ranges from 1. 02 to 1. 27, STUDIES OF VARIATION IN INSECTS 257 the mode being 1. 2 mm. , the mean 1. 16 mm. , the standard deviation . 7 mm. And the coefficient of variation 6.
What to read after Studies of Variation in Insects?
You can find similar books in the "Read Also" column, or choose other free books by Vernon L Vernon Lyman Kellogg to read onlineMoreLess
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