TL;DR: A survey of the 'Symphyta' of Colombia is conducted, based on information from literature as well as on examination of over 2,000 specimens from the major Colombian entomological collections, and four new species are described.
Abstract: A survey of the ‘Symphyta’ of Colombia is conducted, based on information from literature as well as on examination of over 2,000 specimens from the major Colombian entomological collections. A total of 127 species are recorded from Colombia, representing six families: Argidae (48 species), Tenthredinidae (37) Pergidae (37), Xiphydriidae (3 species), Siricidae (1 species) and Orussidae (1 species). 11 genera and 68 species are new records for Colombia, doubling the number of previously reported species. Heteroperreyia (Pergidae) is recorded for the first time in northern South America. Most records and species are concentrated in the Andean region. Four new species are described: Acrogymnidia catalina Malagon-Aldana, sp. nov., Ptenos amazonicus Malagon-Aldana, sp. nov. (Argidae), Heteroperreyia andina Malagon-Aldana, sp. nov. (Pergidae) and Derecyrta risaraldensis Malagon-Aldana, sp. nov. (Xiphydriidae). The following taxonomic changes are proposed, and lectotypes designated for all these nominal taxa: Dochmioglene suppar (Konow, 1903), comb. n., Plaumanniana parmata (Konow, 1903), comb. n., and Proselandria analis (Fabricius, 1804), comb. n.; Plaumanniana biclinia (Konow, 1899) = Stromboceros marcidus Konow, 1899, syn. n.; Proselandria analis (Fabricius, 1804) = Stromboceros brevispinis Konow, 1908, syn. n., Monophadnus trichiotomus Cameron, 1911, syn. n. and Romaniola amazonica Forsius, 1925, syn. n.
TL;DR: Five new species in the genus Vibrissina Rondani are described from Area de Conservación Guanacaste (ACG) and all species were reared from wild-caught sawfly larvae.
Abstract: Background We describe five new species in the genus Vibrissina Rondani from Area de Conservacion Guanacaste (ACG). All species were reared from wild-caught sawfly larvae (Hymenoptera: Symphyta: Argidae and Tenthredinidae). We provide a morphological description of each species together with information on life history, molecular data, and photographic documentation. New information Five new species of Vibrissina Rondani: Vibrissina randycurtisisp. n., V. randyjonesisp. n., V. robertwellsisp. n., V. danmartinisp. n., V. hallwachsorumsp. n.
TL;DR: The presence of well‐developed spermatodesmata in the vas deferens and seminal vesicle characterize the Symphyta and were largely absent from other groups though they are occasionally present in some bees.
Abstract: A light and electron microscopical survey of spermatozoan gross morphology and ultrastructure in the Hymenoptera is presented. Details are provided for the first time for members of the families Xyelidae, Argidae, Tenthredinidae, Diprionidae, Cephidae, Figitidae, Proctotrupidae, Diaprii- dae, Heloridae, Eurytomidae, Leucospidae, Perilampidae, Torymidae, Braconidae, Dryinidae, Sphecidae, Pompilidae and Vespidae. Spermatozoan length ranged from 8 μm in some Braconidae to 500 μm in one chalcidoid. Considerable variation in gross morphology and ultrastructure were observed between taxa. Several phylogenetically informative characters were noted. Very small spermatozoa characterized most of the non-cyclostome subfamilies of Braconidae; spirally twisted axoneme and mitochondrial derivatives occur in the Eulophidae, Eurytomidae and Pteromalidae; spermatozoa with virtually indistinguishable head (nucleus and acrosome) regions characterized the Vespinae and Polistinae. The presence of well-developed spermatodesmata in the vas deferens and seminal vesicle characterize the Symphyta and were largely absent from other groups though they are occasionally present in some bees.
TL;DR: This chapter deals broadly with the North American sawflies in the two superfamilies Megalodontoidea (Xyelidae and Pamphiliidae, listed phylogenetically) and Tenthredinoidea and Pergidae, Argidae, Cimbicidae, Diprionidae, and Tenth redinidae.
Abstract: This chapter deals broadly with the North American (NA) sawflies in the two superfamilies Megalodontoidea (Xyelidae and Pamphiliidae, listed phylogenetically) and Tenthredinoidea (Pergidae, Argidae, Cimbicidae, Diprionidae, and Tenthredinidae). The larvae of these sawflies are all phytophagous, and many are significant pests.