Generic Classification of the Hemipterous Family Aphididae
Generic Classification of the Hemipterous Family Aphididae
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Stem mother with four- segmented antennae, the unguis of segment VI slender and Aphis-like. Permanent sensoria ciliate. Alate form with five-segmented antennae which are armed with narrow transverse sensoria. Fore wings with the media simple, hind wings with both media and cubitus present.
Forms living in galls; the stem mother and her offspring living in the same gall, the alate forms leaving the galls in spring or early summer. Sexes unknown, but no doubt small, apterous, and beakless.
Type (...monotypical), Byrsocrypta vagabunda Walsh.
GENERIC CLASSIFICATION OF APHIDIDAE. 71 Genus PACHYPAPPELLA, n. N.
Plate XI, H-M. 1909. Pachypappa Tullgren, Arkiv for Zoologi, Bd. 5, no. 14, p. 69.
In 1854 the genus Pachypappa was erected by Koch, with marsu- pialis and vesicalis in the genus. A study of marsupialis shows that this species is in reality a Pemphigus as it shows all the characters of this genus. Tullgren, 1909, noted this and therefore interpreted the genus differently. Marsupialis had, however, been set as the type of the genus.
What to read after Generic Classification of the Hemipterous Family Aphididae?
You can find similar books in the "Read Also" column, or choose other free books by A C Arthur Challen Baker to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Stem mother with four- segmented antennae, the unguis of segment VI slender and Aphis-like. Permanent sensoria ciliate. Alate form with five-segmented antennae which are armed with narrow transverse sensoria. Fore wings with the media simple, hind wings with both media and cubitus present.
Forms living in galls; the stem mother and her offspring living in the same gall, the alate forms leaving the galls in spring or early summer. Sexes unknown, but no doubt small, apterous, and beakless.
Type (...monotypical), Byrsocrypta vagabunda Walsh.
GENERIC CLASSIFICATION OF APHIDIDAE. 71 Genus PACHYPAPPELLA, n. N.
Plate XI, H-M. 1909. Pachypappa Tullgren, Arkiv for Zoologi, Bd. 5, no. 14, p. 69.
In 1854 the genus Pachypappa was erected by Koch, with marsu- pialis and vesicalis in the genus. A study of marsupialis shows that this species is in reality a Pemphigus as it shows all the characters of this genus. Tullgren, 1909, noted this and therefore interpreted the genus differently. Marsupialis had, however, been set as the type of the genus.
What to read after Generic Classification of the Hemipterous Family Aphididae?
You can find similar books in the "Read Also" column, or choose other free books by A C Arthur Challen Baker to read onlineMoreLess
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