Abstract
The preimaginal stages including egg, mature larva and pupa of Pseudaspidapion botanicum Alonso-Zarazaga & Wang, 2011 were described and figured, diagnostic characters of larva and pupa were discussed, and corresponding biological information was supplied. The nomenclature of frontal setae in the larva compared with curculionid weevils, the absence of the hypopharyngeal bracon in the larva, and the metafemoral setae in the pupa were discussed. Common and different characters among the larvae of Pseudaspidapion botanicum, Aspidapion radiolus (Marsham, 1802) and Aspidapion aeneum (Fabricius, 1775) were also provided.
Highlights
Pseudaspidapion botanicum Alonso-Zarazaga & Wang, 2011 belongs to the tribe Aspidapiini Alonso-Zarazaga, 1990
Specimens examined of larvae and pupae are deposited in the Institute of Zoology, Chinese Academy of Sciences, Beijing (IZCAS)
After dissection of some 300 buds, we have found that 1-4 oviposition holes can be found on one bud surface, but only 1–2 eggs or larvae per bud are normally found, and 3 or more eggs or larvae were quite rare (Figures 13–15)
Summary
Pseudaspidapion botanicum Alonso-Zarazaga & Wang, 2011 belongs to the tribe Aspidapiini Alonso-Zarazaga, 1990. There are 6 species of the genus Pseudaspidapion Wanat, 1990 recorded from China, 2 of which are only known from female specimens, and almost all of which were described without biological information apart from P. botanicum (Alonso-Zarazaga et al, 2011). Authors have sparsely referred to apionid larvae in detail (e.g., Gosik et al 2010; Sanz Benito and Gurrea Sanz 1999; Bennett 1992; May 1994), and most of the corresponding literature has only simple descriptions or keys for identification of species or higher taxa of Curculionoidea (Emden 1938; Marvaldi 1997, 2005; May 1993). In order to supplement to the available data of Pseudaspiapion for distinguishing this oriental genus from other lingeages in Aspidapiini (Aspidapion Schilsky, 1901, Flavopodapion Korotyaev, 1987 and Harpapion Voss, 1966) (Alonso-Zarazaga 2011), we collected larvae and pupae from the host plant and document here its preimaginal stages. Relevant biological records of P. botanicum were provided
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