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A Description of Aphis (Doralis) rumicis, L., and Comparison with Aphis (Doralis) fabae, Scop.

Published online by Cambridge University Press:  10 July 2009

G. Jones Margaret
Affiliation:
Department of Zoology, Cambridge.

Extract

Linnaeus (1746) described a black aphis which he found on Rumex sp. and called it Aphis rumicis. Fabricius (1794) described a black aphis “ Aphis rumicis,” found “in Rumice acuto” and mentioned pale antennae and tibiae. Risso (1826) recorded a species, Doralis rumicis, Leach, found in the Mediterranean region, but did not describe it. Koch (1857) recorded Aphis rumicis, L., from Rumex crispus, feeding chiefly on the stems and flower-stalks. This aphis is also frequently found on thistles and beans. The apterous female has black antennae, white only at the base of the long “ fourth joint.” The wing-pads and thorax of the alate nymphs are olive-green. Kaltenbach (1874) described black Aphids developing from eggs on dock, and having a second winged generation which settles on beans, thistles, Chenopodium sp., and other plants. He observed that the Aphid colonies are on the leaves and flower-stalks. Buckton (1879) gave an illustrated account of a black aphis, Aphis rumicis, L., which has a large number of food-plants including Rumex crispus, Carduus lanceolalus, and broad bean, with furze as its winter host. He noticed the presence of large white flecks on the “pupae.”

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1942

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