Spilomicrus Westwood, 1832

Huebner, Jeremy Joshua & Chemyreva, Vasilisa, 2024, Review of German Spilomicrus Westwood (Hymenoptera, Diapriidae, Spilomicrini), Biodiversity Data Journal 12, pp. 114515-114515 : 114515

Spilomicrus Westwood, 1832

Spilomicrus stigmaticalis Type species Spilomicrus stigmaticalis Westwood, 1832, by original monotypy.

Diagnosis

A detailed diagnosis of the genus was given by Masner (1991) and by Masner and García (2002) and, therefore, we only provide a short diagnosis including the most important features.

Medium-sized (1.5-4.5 mm long) melanic wasps. Head subglobose, with mouthparts in lateral view hypognathous; antenna 13-segmented, in females with clava more- or less abrupt, in males antenna thread-like, A4 modified in almost all species. Mesosoma moderately to distinctly wider than high; scutellum with 2 anterior pits and, in most species, with 2 lateral pits and row of smaller posterior pits along posterior margin; forewing with costal vein tubular to nebulous, submarginal vein tubular, marginal vein relatively short, postmarginal and stigmal veins rudimentary or absent; basal vein rarely tubular, in most species nebulous or absent; other veins, at most, nebulous or absent; legs slender to stout, with or without trochanters. Petiole cylindrical in most species; anterior margin of T2 straight, without median cleft or emargination (rarely with 2 lateral folds filled with pilosity); base of S2 arcuate, with moderate to strong cushion of pilosity.

The following part lists all the Spilomicrus species found within the framework of the GBOL III project. In comparison to the whole European Spilomicrus fauna, three species could not be recorded for Germany and are, therefore, not documented here: S. sanbornei Masner, 1991, S. cursor Kieffer, 1911 and S. latus Chemyreva, 2021. In addition to the morphology, we provide the barcoding information in the form of the BINs and, if necessary, genetic distances for closely-associated taxa. Illustrations are given for the newly-described taxa and the closest sister taxa for a better understanding of the morphological characters and differences. All other species have already been well described and illustrated in Chemyreva (2021).