Rediscovery of Cladiucha insolita Konow (Hymenoptera, Tenthredinidae), description of the male and intraspecific variation

Smith, David R.

doi:10.3897/jhr.60.21099

Cited by 1 publication

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“…The present dated tree also suggests that the divergence and diversification times of Cladiucha and Megabeleses nearly coincide with the divergence times of their host plants (Figure 7). The members of these genera constituting a distinct lineage, Megabelesesinae, appear to be more special with a relatively narrow host range, feeding on the members of the family Magnoliaceae [20,24,79]. Based on fossil records and evidence from molecular phylogenetic studies, this family has generally been considered one of the relatively primitive families of flowering plants with woody members [80,81].…”

Section: Divergences Of Tenthredinid Subfamilies Through Timementioning

confidence: 99%

“…Cladiucha Konow, 1902, andMegabeleses Takeuchi, 1952, are two small tenthredinid genera that feed on plants of the family Magnoliaceae (angiosperms), and most species of these genera have great economic importance, mainly in Southeast Asia [16][17][18][19][20][21][22][23]. Cladiucha is more similar in some respects to Diprionidae and some Pergidae, harboring multiple antennomeres and serrate-type antennae in the female and biramous-type antennae in the male rather than the filiform antennae usually observed in other tenthredinids [24]. This genus was first placed in the subfamily Allantinae, considering the similarity in wing venation and other structural characteristics, but generated a new tribe, Cladiuchini, for this genus [9].…”

Section: Introductionmentioning

confidence: 99%

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Mitochondrial Phylogenomics of Tenthredinidae (Hymenoptera: Tenthredinoidea) Supports the Monophyly of Megabelesesinae as a Subfamily

Niu

Jiang

Doğan

et al. 2021

Insects

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Tenthredinidae represents one of the external feeders of the most diverse superfamily, Tenthredinoidea, with diverse host plant utilization. In this study, four complete mitochondrial genomes (mitogenomes), those of Cladiucha punctata, Cladiucha magnoliae, Megabeleses magnoliae, and Megabeleses liriodendrovorax, are newly sequenced and comparatively analyzed with previously reported tenthredinid mitogenomes. The close investigation of mitogenomes and the phylogeny of Tenthredinidae leads us to the following conclusions: The subfamilial relationships and phylogenetic placements within Tenthredinidae are mostly found to be similar to the previously suggested phylogenies. However, the present phylogeny supports the monophyly of Megabelesesinae as a subfamily, with the sister-group placement of Cladiucha and Megabeleses outside of Allantinae. The occurrence of the same type of tRNA rearrangements (MQI and ANS1ERF) in the mitogenomes of Megabelesesinae species and the presence of apomorphic morphological characters also provide robust evidence for this new subfamily. The divergence and diversification times of the subfamilies appear to be directly related to colonization of the flowering plants following the Early Cretaceous. The origin time and diversification patterns of Megabelesesinae were also well matched with the divergence times of their host plants from Magnoliaceae.

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