Genus Neoprimaspis nom. n.
Primaspis Howell, 1995: 202 (Mandibulata: Hexapoda: Hemiptera: Diaspididae), preoccupied by Primaspis Richter & Richter, 1917: 466 (Mandibulata: Trilobita: Odontoplurida: Odontopluridae).
Type species: Primaspis tippinsi Howell, 1995: 203-206 .
Remarks on nomenclatural change. Howell (1995) established the armoured scale genus Primaspis with the type species Primaspis tippinsi Howell 1995 . It is a valid genus in Hemiptera: Coccomorpha: Diaspididae, subfamily Diaspidinae, tribe Lepidosaphidini (Normark et al. 2019) . The genus is monotypic and is known only from Mexico.
Unfortunately, the name Primaspis Howell 1995 is preoccupied by Primaspis Richter & Richter 1917, a fossil trilobite genus belonging to Mandibulata: Trilobita: Odontoplurida: Odontopluridae, based on the type species Odontopleura primordialis Barrande 1846 . Thus, Primaspis Howell 1995 is a junior homonym of Primaspis Richter & Richter 1917 . According to Article 60 of the International Code of Zoological Nomenclature, a new replacement name is proposed for Primaspis Howell 1995: Neoprimaspis nom. nov.
Etymology. The replacement name is derived from the pre-existing name Primaspis, combined with the prefix βneo- β from the Greek β neos β meaning new; gender feminine.
Summary of nomenclatural changes:
Neoprimaspis Meng, Howell & Xing nom. n. (rep. n.) = Primaspis Howell 1995 (nec Richter & Richter 1917).
Neoprimaspis tippinsi (Howell 1995) comb. n. = Primaspis tippinsi Howell 1995 .