CHIRONOMUS Journal of Chironomidae Research , ces 365 derniers jours

Journal of Chironomidae research

mardi 28 décembre 2021

jeudi 23 décembre 2021

dimanche 29 août 2021

vendredi 27 août 2021

  • Propsilocerus Kieffer, 1923 shares morphological synapomorphies with Prodiamesinae

    In their comprehensive analysis Cranston et al. (2012) quite unexpectedly recovered a monophyletic Orthocladiinae, except that Propsilocerus Kieffer, 1923, was recovered as a representative of Prodiamesinae. In this short communication I show that Propsilocerus shares morphological synapomorphies with other Prodiamesinae – namely (i) an indirect tracheal connection of the pupal thoracic horn to the adult spiracle and (ii) a parallel-sided rami of female gonapophysis IX.

lundi 23 août 2021

  • Dicrotendipes sinicus Lin & Qi, sp. n. (Diptera: Chironomidae)

    The name Dicrotendipes sinicus was originally proposed in 2018, but the requirements of the International Code of Zoological Nomenclature were not fulfilled to make the name available. We here re-propose the name with full Code compliance and redescribe and illustrate all life stages of the species to make the name available.

jeudi 17 juin 2021

jeudi 8 avril 2021

  • Pseudorthocladius immezensis sp. n., a new relict species inhabiting the Macun high-alpine stream, Swiss Alps (Diptera: Chironomidae)
    Male adult of Pseudorthocladius immezensis sp. n
    is diagnosed and described based on material collected in the high alpine cirque of the Macun area (Immez Lake basin, alt. 2616 m a.s.l.).
    A combination of morphological characters found in the male adult has allowed us to consider this new species as a local biogeographical representative of the eastern part of the Swiss Alps: coronal suture with lateral extension, low antennal ratio (AR 0.30); distal half of wing hairy; anal point broadly triangular with a characteristic enlarged base; inner apical margin of gonocoxite truncate; superior volsella large lobe-like; inferior volsella double, dorsal lobe nose-like and distinctly bent apically; virga present, with 4 spines; crista dorsalis absent. A differential diagnosis is given, in which some distinguishing morphological characters are summarised. Comments on the ecology and geographical distribution of the new species are also provided.


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