| Larva of Lassenia newelli sp. nov., attached to adult alate small hazel aphid (Myzocallis coryli).|
Mąkol & Featherstone, 2021
A new tanaupodid mite, Lassenia newelli sp. nov. is described based on a larva parasitising the aphid Myzocallis coryli (Goeze, 1778) (Aphididae) in Scotland, Great Britain. It is the ninth species of Lassenia known from the larval stage, the second host association for the genus and the first one for which the specific affiliation of both the parasite and its host is provided. The finding contributes to the taxonomy and biology of Tanaupodidae which have been considered to form one of the basal clades of Parasitengona. The discovery of elongate seta on the dorsal surface of tarsus III in L. newelli, a characteristic also shared by the monotypic Amphotrombium, supports the hypothesis of possible links between the tanaupodids and amphotrombiids as early derivative taxa of parasitengone mites.
Keywords: Lassenia, larva, host, aphid, , Great Britain
|Larva of Lassenia newelli sp. nov., attached to adult alate small hazel aphid (Myzocallis coryli). |
| Larva of Lassenia newelli sp. nov., attached to adult alate small hazel aphid (Myzocallis coryli). |
Lassenia newelli sp. nov.
Diagnosis: Larva. Anterior plate, encompassing the bases of ASens, well separated from the remaining part of scutum. fD = 20, fV = 6. fSt = 0-0. Anal sclerites with two setae, each. Two setae on palp femur. fCx = 2-2-1. Genu I with two solenidia. Lateral claws on tarsi simple.
Etymology: The specific epithet is given to commemorate Irwin M. Newell (1916–1979), Professor of Zoology, for his contribution to the taxonomy and ecology of mites.