Spilomicrus thomsoni Kieffer, 1911

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

Spilomicrus thomsoni Kieffer, 1911

Spilomicrus thomsoni Kieffer, 1911: 787, 798.

Materials

Type status: Lectotype. Occurrence: recordedBy: C. H. Boheman; individualCount: 1; sex: female; lifeStage: adult; occurrenceID: 051550F1-0B2D-5654-9E40-7E0ED1AF0AA2; Taxon : scientificName: Spilomicrus thomsoni; kingdom: Animalia ; phylum: Arthropoda ; class: Insecta ; order: Hymenoptera ; family: Diapriidae ; genus: Spilomicrus ; specificEpithet: thomsoni; scientificNameAuthorship: Kieffer , 1911; Location : continent: Europe ; country: Sweden; stateProvince: Smĺland; Record Level: institutionCode: NHRS-HEVA; collectionCode: 000016369; ownerInstitutionCode: NHRS; source: designated by Chemyreva 2021

Diagnosis

Malar sulcus partly developed, shallow; neck of prothorax bare anteriorly; pleurostomal distance distinctly shorter than distance between eyes in front view; temples behind eyes gradually receding posteriorly; male А 4 cylindrical, with keel reaching 0.55 of the segment length, A4 0.73-0.80 times as long as A3; antenna gradually darkened towards the top, with non-abrupt clava; female A9 with distinct MGS brush; A13 with small pit ventrally; A13 in dorsal and lateral views narrower than A12; А 9 distinctly narrower and shorter than А 10; notauli present in the form of broad grooves posteriorly; sternaulus absent; wings reaching to apex of metasoma to distinctly beyond it; female petiole elongate, about 1.2 times as long as wide. Lectotype illustrated in Fig. 15 .

Distribution

Czech Republic (Tomsik 1947), Finland, Germany*, Moldova, Russia (European part), Sweden, Ukraine.

Notes

There are two BINs within Spilomicrus thomsoni , BOLD:ADF4747 and BOLD:ADX1651, which differ in only 0.1% from each other. Although the cluster methods of ASAP and BOLD separate the two clades and show very low intraspecific genetic variation, we could not tell them morphologically apart. Therefore, we will refer to them as being one species until further analyses might change that interpretation.

On the other hand, we can separate the Spilomicrus thomsoni taxon from S. hemipterus genetically and morphologically. This is why we removed S. thomsoni from synonymy with S. hemipterus .

Figures

Figure 15. Female lectotype of Spilomicrus thomsoni. A dorsal; B corresponding labels; C broken off body parts.