Dissomphalus Ashmead, 1893

Fadeev, Kirill I., 2022, First record of Dissomphalus Ashmead (Hymenoptera: Bethylidae) from Russia with description of a new species, Zootaxa 5099 (3), pp. 382-390 : 384

Genus Dissomphalus Ashmead, 1893

Type-species: Dissomphalus xanthopus Ashmead, 1893 .

Synonyms. Ecitopria Wasmann, 1899: 55 . Type species: Ecitopria crassicornis Wasmann, 1899 . Synonymized by Evans 1955.

Psilobethylus Kieffer, 1906: 461–462 . Type species: Psilobethylus luteus Kieffer, 1906 in Kieffer & Marshall 1904–1906. Synonymized by Terayama 1995.

For the complete list see Azevedo et al. (2018b)

Diagnosis. Body robust. Clypeus with median lobe usually unidentate or tridentate. Metasomal tergum II longer than I. Metasomal tergum II with pair of process, tubercles or pits, in most cases. Metasomal tergum III without modification. Hypopygium usually with three stalks, median stalk longer than lateral. Genitalia short and wide. Harpe curved inward. Aedeagus complex with dorsal valve and paired ventral valve. Volsella G-like shape. For the complete diagnosis of the genus see Azevedo et al. (2018b).

Biology. Nothing is known about the lifestyle and biology of the vast majority of species. In accordance with Evans (1955, 1978), females of various species were taken in soil, logs, leaf litter, ant nests, packrat nests, males were taken in traps or by sweeping, and North American species D. apertus Kieffer, 1914 was associated with Bruchus brachialis Fahraeus ( Coleoptera : Bruchidae ), and D. xanthopus Ashmead, 1893 was associated with Micromalthidae (Coleoptera) and Cecidomyiidae (Diptera) .

Distribution. Worldwide (Australasian, Nearctic, Neotropical, Afrotropical, Oriental and Palaearctic regions) ( Azevedo et al. 2018b).