Sceliphron asiaticum
{{Short description|Species of wasp}}
{{Speciesbox
| genus = Sceliphron
| species = asiaticum
| authority = (Linnaeus 1758)
| image = Potter Wasp (Sceliphron asiaticum) (38616369975).jpg
| display_parents = 2
| synonyms = *Pelopaeus vindex Lepeletier de Saint Fargeau, 1845
- Pelopoeus figulus Dahlbom, 1843
- Sphex asiaticus Linnaeus, 1758
- Sceliphron figulus (Dahlbom, 1843)
- Sceliphron vindex (Lepeletier de Saint Fargeau, 1845)
- Sceliphron figulus rufescens Strand, 1910
}}
Sceliphron asiaticum is a species of thread-waisted wasp in the family Sphecidae.{{Cite web| access-date = 13 March 2021| title = Catalog of Sphecidae: Sceliphron| last1 = Pulawski | first1 = Wojciech J.| publisher = California Academy of Sciences| url = http://researcharchive.calacademy.org/research/entomology/entomology_resources/hymenoptera/sphecidae/genera/Sceliphron.pdf}} It is native to the Neotropics, South America and the Caribbean region.{{Cite web| title=Sceliphron asiaticum (Linnaeus, 1758)| url=https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=769854| website=Integrated Taxonomic Information System| access-date=13 March 2021}}
Description
The adult S. asiaticum has a black head, a black thorax with yellow bands, an elongated waist and a black abdomen, apart from the first abdominal segment which is yellow. The antennae are black, the wings membranous, and the legs yellow and black.{{cite web |url=https://www.inaturalist.org/taxa/468433-Sceliphron-asiaticum |title=Sceliphron asiaticum |publisher=iNaturalist |access-date=18 March 2021}}
Ecology
In Trinidad, the two wasps S. asiaticum and S. fistularium have overlapping ranges; S. asiaticum tends to occupy drier areas with less forest cover. It also tends to form denser associations and the larvae are usually more heavily parasitised.{{cite journal |author=Freeman, B.E. |year=1982 |title=The comparative distribution and population dynamics in Trinidad of Sceliphron fistularium (Dahlbom) and S. asiaticum (L.) (Hymenoptera: Sphecidae) |journal=Biological Journal of the Linnean Society |volume=17 |issue=4 |pages=343–360 |doi=10.1111/j.1095-8312.1982.tb02026.x}} Wasps in the genus Sceliphron collect mud to make cells in which to lay their eggs. One or more paralysed spiders is placed in each cell to provide food for the developing larva. There is a relationship between female size, fecundity and the sex of the offspring: small females lay fewer eggs, a higher proportion of which develop into males, thereby maximising the reproductive success of the female.{{cite journal |author=Freeman, B.E. |year=1981 |title=Parental Investment, Maternal Size and Population Dynamics of a Solitary Wasp |journal=The American Naturalist |volume=117 |issue=3 |pages=357–362 |jstor=2460534 |url=https://www.jstor.org/stable/2460534|doi=10.1086/283713|s2cid=84814393 |url-access=subscription }}
Melittobia asiaticum is a parasitoid of S. asiaticum. It is between {{convert|1|and|1.5|mm|in|2|abbr=on}} long and causes considerable mortality among the larvae of its host. One mud nest of S. asiaticum was collected from a house in northeastern Brazil; it was built of sandy silt, incorporated detritus and faeces, and contained twelve chambers. Each chamber was provisioned with spider body parts and occupied by a single host larva. All of these were parasitised and killed by M. asiaticum, leaving dry pupal husks. A total of over 100 adult M. asiaticum and no S. asiaticum emerged from the nest. The spiders used for provisioning were all cursorial (running) spiders and no orb-weaver spiders were observed, which was an unexpected finding.{{cite journal |author=Carvallo, Leonarde S.; Bevilaqua, Marcus Vinicius O.; Querino, Ranyse B. |year=2014 |title=An observation of the parasitoid Melittobia australica Girault (Hymenoptera: Eulophidae) and its host, the solitary wasp Sceliphron asiaticum (Linnaeus) (Hymenoptera: Sphecidae) |journal=Entomologica Americana |volume=120 |issue=1 |pages=43–46 |doi=10.1664/13-SN-012R.1 |s2cid=85641910 |url=http://ainfo.cnptia.embrapa.br/digital/bitstream/item/106598/1/Entomologica-Americana.pdf }}