Translucent cuticle and setiferous patches in Megaspilidae (Hymenoptera, Ceraphronoidea)

Trietsch, Carolyn; István, Mikó; Ulmer, Jonah M.; Deans, Andrew R.

doi:10.3897/jhr.60.13692

Cited by 2 publications

(1 citation statement)

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“…The phylogenetic placement of Ceraphronoidea within Apocrita remains unresolved, with current molecular studies indicating a position as sister to Ichneumonoidea (Peters et al 2017) or as sister to Evaniidae, in a clade that is sister to Aculeata . A sister group relationship to Ichneumonoidea is supported by limited morphological data, including the presence of semitransparent patches on the abdominal sternites (Trietsch et al 2017). Likewise, the presence of numerous plesiomorphic traits, including the presence of a median mesoscutal sulcus, well developed pterostigma, two apical spurs of the foretibia, musculated harpes in the male genitalia, and the presence of T10 among others (Gibson 1985;, suggest Ceraphronoidea might retain more plesiomorphic features than most other Apocrita.…”

Section: Introductionmentioning

confidence: 99%

The Waterston’s evaporatorium of Ceraphronidae (Ceraphronoidea, Hymenoptera): A morphological barcode to a cryptic taxon

Ulmer¹,

István²,

Deans³

et al. 2021

JHR

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The Waterston’s evaporatorium (=Waterston’s organ), a cuticular modification surrounding the opening of an exocrine gland located on metasomal tergite 6, is characterized and examined for taxonomic significance within the parasitoid wasp family Ceraphronidae. Modification of the abdominal musculature and the dorsal vessel are also broadly discussed for the superfamily Ceraphronoidea, with a novel abdominal pulsatory organ for Apocrita being discovered and described for the first time. Cuticular modification of T6, due to the presence of the Waterston’s evaporatorium, provides a character complex that allows for genus- and species-level delimitation in Ceraphronidae. The matching of males and females of a species using morphology, a long standing challenge for the group, is also resolved with this new character set. Phylogenetic analysis including 19 Waterston’s evaporatorium related characters provides support for current generic groupings within the Ceraphronidae and elaborates on previously suggested synapomorphies. Potential function of the Waterston’s organ and its effects on the dorsal vessel are discussed.

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Section: Introductionmentioning

confidence: 99%