• DNA barcoding and morphology reveal two common species in one: Pimpla molesta stat. rev. separated from P. croceipes (Hymenoptera, Ichneumonidae)

      Veijalainen, A; Broad, G; Wahlberg, N; Longino, J; Sääksjärvi, I (Pensoft, 2011-08-18)
      Correct species identification is the basis of ecological studies. Nevertheless, morphological examination alone may not be enough to tell species apart. Here, our integrated molecular and morphological studies demonstrate that the relatively widespread and common neotropical parasitoid wasp Pimpla croceipes Cresson, 1874 (Hymenoptera: Ichneumonidae: Pimplinae) actually consists of two distinct species. The name Pimpla molesta (Smith, 1879) stat. rev. is available for the second species. The two species were identified by DNA barcoding and minor differences in morphology and colouration. Our results support the previous notions that DNA barcoding can complement morphological identification and aid the discovery of cryptic species complexes.
    • First record of Acaenitinae (Hymenoptera, Ichneumonidae) from South America with description of a new species and a key to the world species of Arotes Gravenhorst

      Castillo, C; Saaksjarvi, L; Bennett, A; Broad, G (Pensoft, 2011-10-14)
      A new species of Acaenitinae, Arotes ucumari Castillo & Sääksjärvi, sp. n., is described and illustrated representing the first record of the subfamily from South America. The new species was collected from a premontane tropical rain forest in the Peruvian Andes at 1500 m. A key to the world species of Arotes Gravenhorst, 1829 is provided. The subspecies Arotes albicinctus moiwanus (Matsumura, 1912) is raised to species rank, Arotes moiwanus stat. n.