Synonyms and other taxonomic changes
Diraphia sanguinea Provancher, 1872
Psylla trimaculata Crawford, 1911 (Synonymized with P. sanguinea by Hodkinson 1993)
Psylla cerasi Patch, 1912 (Synonymized with P. trimaculata by Tuthill 1944)
Psylla astigmata Crawford, 1914 (Synonymized with P. trimaculata by Osborn 1922)
Explanation of Names
Psylla sanguinea (Provancher, 1872)
Identification
Typical form light green to greenish yellow with three red spots on the dorsum:
Var. astigmata as above, but without red spots:
Var. cerasi is reddish dorsally, pale ventrally, and with 5 black bands on the abdomen, potentially associated with cooler temperatures:
In diagnosing atypical forms, note also the long dark antennae (greater than 2.5x width of head), the lack of pterostigma, and the relatively short female genital segment).
Life Cycle
The nymphs occur on the ventral surfaces of leaves where they produce large amounts of floss-like cottony wax. In severe infestations they may also be found on the petioles, branches, flowers, and fruit
(2)Print References
Crawford, D.L., 1914. A monograph of the jumping plant-lice or Psyllidae of the New World.
Bulletin of the United States National Museum, 85:
155 - original description of
Psylla astigmata, rediscription of
Psylla trimaculata, and key to genus.
(3)
Provancher, L'Abbé L. 1886 Cinquième ordre. Les hémiptères.
Petite faune entomologique du Canada et particulièrement de la province de Québec. 3:
307