Oxyrrhexis carbonator ( Gravenhorst, 1807 )

Khalaim, Andrey I., Ruíz-Cancino, Enrique & Coronado-Blanco, Juana María, 2024, Darwin wasps of the subfamily Pimplinae (Hymenoptera: Ichneumonidae) of Mexico: Polysphincta genus-group, Zootaxa 5458 (2), pp. 151-196 : 171

1. Oxyrrhexis carbonator ( Gravenhorst, 1807)

Cryptus carbonator Gravenhorst 1807: 264 [type:? Germany (destroyed)].

Synonyms:

Acrodactyla carbonatrix Schulz, 1906 (unjustified emendation).

Polysphincta carbonator morio Kiss, 1929 ( Horstmann 2009: 679).

Polysphincta pussila Fonscolombe, 1854 ( Seyrig 1932: 112).

Polysphincta velata Hartig, 1838 ( Aubert 1967: 898).

References. Townes 1944: 50 [catalogue]. Townes & Townes 1960: 242 [description; key to 2 subspecies]. Fritzén & Fjellberg 2014: 136 [distribution in Europe; host]. Gadallah & El-Hennawy 2017 [ Egypt; host].

Holarctic species, O. carbonator , comprises two subspecies, the nominotypical subspecies from the Palaearctic region and the other Nearctic. The Nearctic O. carbonator texana differs from the Palaearctic subspecies by the hind femur with a rather strong subapical infuscate band ( Fig. 38 ), reddish orange and whitish coxae without fuscous marks, and sharper fuscous banding on hind tibia ( Fig. 38 ) ( Townes & Townes 1960).

This species has been reared from many hosts of the spider families Araneidae , Linyphiidae , Tetragnathidae , Theridiidae and Thomisidae , but all require verification ( Gauld & Dubois 2006: 553). Fritzén & Fjellberg (2014) suggested that the only reliable host of European O. carbonator is Steatoda bipunctata (Linnaeus) ( Theridiidae ) and considered all other host records in literature (listed by Yu et al. 2012) of non- Steatoda spiders, and also members of Coleoptera , Hymenoptera and Lepidoptera , as misidentifications of either the parasitoid or host. Recently, O. carbonator was reared from the titanoecid spider Nurscia albomaculata (Lucas) ( Titanoecidae ) in Egypt ( Gadallah & El-Hennawy 2017).

Figures

FIGURES 35–39. Oxyrrhexis carbonator texana, ♀ (Coahuila): 35—habitus, lateral; 36—head, front; 37—mesosoma, lateral; 38—hind leg, lateral; 39—apex of metasoma with ovipositor, lateral.