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Revision of the larvae of Leptus Latreille (Acarina : Erythraeidae) of Europe and North America, with descriptions of post-larval instars

Published on May 1, 1992in Zoological Journal of the Linnean Society2.909
· DOI :10.1111/j.1096-3642.1992.tb01228.x
R. V. Southcott1
Estimated H-index: 1
Sources
Abstract
The larvae of Leptus Latreille, 1796 (Acarina: Erythraeidae) of Europe and North America are comprehensively revised. Of those described since 1900 a total of 34 species is considered recognizable and capable of being keyed; no species described before 1900 is considered recognizable. The nominal type of the genus, Acarus phalangii de Geer, 1778 is rejected as an illegitimate name. Eighteen European and 17 North American species are described and keyed, of which 17 are new to science. One new subspecies from North America, of a species previously known from Europe, is described and keyed. Standard metric data are given for each species or subspecies from available specimens (except two North American species, L. ariel Southcott and L. clarki Southcott, recently described elsewhere; for these last-named two additional metric data are given). Larvae have been recorded from April to September, with the greatest number found being for July and August. Protonymphs are described for two North American species (L. ghiradellae sp. nov. and L. welbourni sp. nov.), and deutonymphs for two North American species (L. calix sp. nov. and L. ghiradellae). Keys are given to separate the reared protonymphs, and three described deutonymphs (the two preceding and the European L. galerucae Feider). Data on the duration of the protonymphal instar suggest that in North America and Europe there are two modes: one lasting 3–4 weeks, the other 5–7 months. Developmental abnormalities are recorded systematically.
  • References (22)
  • Citations (66)
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The infestation of the European honey-bee, Apis melifera L., by Leptus ariel sp. nov. (Acarina: Erythraeidae) in Guatemala is recorded, and the mite species described.
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Abstract Taranakia lambi gen. nov., sp. nov., and Erythrites jacksoni sp. nov. are described from New Zealand, from larvae (Acarina: Erythraeidae: Erythraeinae) ectoparasitic on insects. This is the first extra-Australian record of Erythrites, a genus common as ectoparasites on Australian insects. The five E. jacksoni specimens show an increase in the number of scutalae, from the standard 3 + 3 ranging to 4 + 4; all were taken from adult brachypterous female grasshoppers, Brachaspis collinus (Hu...
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