Valid Names Results

Mayonia Takagi, 2003 (Diaspididae)

Systematics: Subfamily DIASPIDINAE Tribe DIASPIDINI Subtribe FIORINIINA (Normark, et al., 2019) The genus is close to Pseudaulacaspis and may be regarded as a peculiar form of the latter. It is, however, distinguishable from Pseudaulacaspis by the combination of the following characters in the adult female: presence of a small pyriform sclerosis at the inner base of the second trulla; the median trullae are elongate and serrate; the second trullae are extremely reduced; there are no submedian macroducts. The body is fusiform, with the pygidium delimited by the intersegmental furrow between abd IV and V on the dorsal surface. So far as represented in the collection at hand, Pseudaulacaspis seems to be one of the largest genera in the family, including a number of undescribed species occurring in tropical Asia. Because the boundaries of Pseudaulacaspis are still not clear, the erection of Mayonia was rather tentative. Mayonia and Rutherfordia are both diagnosed by having a small sclerosis on the inner base of the second trulla. Rutherfordia is peculiar in having a pair of enlarged ducts at the posterior end of the body in the first-instar nymph, whereas such ducts are absent in Mayonia callicarpae (based on exuvial casts). (Takagi, 2003)
General Remarks: Detailed analysis in Takagi, 2003.