Brachycaudus (Brachycaudus) helichrysi (Kaltenbach, 1843)

Diagnosis

Aptera 1–1.8 mm, pale green, yellow or yellowish white, ovoid, slightly dorsoventrally flattened. Appendages apically darkened. Siphunculi conical, 1–1.5 times as long as wide. Holocyclic, dioecious, alternating between Prunus (Rosaceae) and Asteraceae and Boraginaceae . Cryptomeria is hardly a true host. Often attended by ants, but no record from conifers.

Recorded coniferous hosts

Cupressaceae: Cryptomeria japonica ?

Distribution

D F I N S.

F6 (F2 F5) Siphunculi parallel-sided, more than 4 times as long as wide .......... Myzus Passerini, 1860