Trissolcus solocis Johnson, 1985

Balusu, Rammohan R, Cottrell, Ted E, Talamas, Elijah J, Toews, Michael D, Blaauw, Brett R, Sial, Ashfaq A, Buntin, David G, Vinson, Edgar L, Fadamiro, Henry Y & Tillman, Glynn P, 2019, New record of Trissolcussolocis (Hymenoptera: Scelionidae) parasitising Halyomorphahalys (Hemiptera: Pentatomidae) in the United States of America, Biodiversity Data Journal 7, pp. 30124-30124 : 30124

Trissolcus solocis Johnson, 1985

Materials

Type status: Other material. Occurrence: recordedBy: R. Balusu; individualCount: 4; sex: male and female; lifeStage: adult; Taxon: scientificName: Trissolcussolocis; kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Scelionidae; genus: Trissolcus; specificEpithet: solocis; taxonRank: species; scientificNameAuthorship: Johnson, 1985; Location: continent: North America; country: United States of America; stateProvince: Alabama; municipality: Prattville; verbatimCoordinates: 32°42'86"N; 86°44'58"W; Event: samplingProtocol: sentinel egg; eventDate: 23/09/2017; habitat: cotton; Record Level: institutionCode: Florida State Collection of Arthropods; basisOfRecord: PreservedSpecimen Type status: Other material. Occurrence: recordedBy: R. Balusu; individualCount: 15; sex: male and female; lifeStage: adult; Taxon: scientificName: Trissolcussolocis; kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Scelionidae; genus: Trissolcus; specificEpithet: solocis; taxonRank: species; scientificNameAuthorship: Johnson, 1985; Location: continent: North America; country: United States of America; stateProvince: Alabama; municipality: Prattville; verbatimCoordinates: 32°42'86"N; 86°44'58"W; Event: samplingProtocol: sentinel egg; eventDate: 21/10/2017; habitat: sassafras; Record Level: institutionCode: Florida State Collection of Arthropods; basisOfRecord: PreservedSpecimen Type status: Other material. Occurrence: recordedBy: R. Balusu; individualCount: 3; sex: male and female; lifeStage: adult; Taxon: scientificName: Trissolcussolocis; kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Scelionidae; genus: Trissolcus; specificEpithet: solocis; taxonRank: species; scientificNameAuthorship: Johnson, 1985; Location: continent: North America; country: United States of America; stateProvince: Alabama; municipality: Prattville; verbatimCoordinates: 32°42'86"N; 86°44'58"W; Event: samplingProtocol: sentinel egg; eventDate: 21/10/2017; habitat: sassafras; Record Level: institutionCode: Florida State Collection of Arthropods; basisOfRecord: PreservedSpecimen Type status: Other material. Occurrence: recordedBy: R. Balusu; individualCount: 2; sex: female; lifeStage: adult; Taxon: scientificName: Trissolcussolocis; kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Scelionidae; genus: Trissolcus; specificEpithet: solocis; taxonRank: species; scientificNameAuthorship: Johnson, 1985; Location: continent: North America; country: United States of America; stateProvince: Alabama; municipality: Shorter; verbatimCoordinates: 32°49'86"N; 85°89'20"W; Event: samplingProtocol: sentinel egg; eventDate: 21/10/2017; habitat: cotton; Record Level: institutionCode: Florida State Collection of Arthropods; basisOfRecord: PreservedSpecimen Type status: Other material. Occurrence: recordedBy: R. Balusu; individualCount: 6; sex: male and female; lifeStage: adult; Taxon: scientificName: Trissolcussolocis; kingdom: Animalia; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Scelionidae; genus: Trissolcus; specificEpithet: solocis; taxonRank: species; scientificNameAuthorship: Johnson, 1985; Location: continent: North America; country: United States of America; stateProvince: Alabama; municipality: Shorter; verbatimCoordinates: 32°49'86"N; 85°89'20"W; Event: samplingProtocol: sentinel egg; eventDate: 21/10/2017; habitat: cotton; Record Level: institutionCode: Florida State Collection of Arthropods; basisOfRecord: PreservedSpecimen

Diagnosis

Vertex without hyperoccipital carina; mesoscutellum coarsely rugose; clypeus with 6 setae; inner margin of eye with orbital furrow uniform in width, not expanded near malar sulcus; vertex sharply angled on to occiput; black radicle; well-defined paracoxal sulcus absent in the ventral half of the metapluron (Fig. 1) ( Talamas et al. 2015).

Distribution

Distribution: Trissolcus solocis is known from Mexico and the south-eastern United States (http://hol.osu.edu/map-large.html?id=3311).

Biology

Additional host associations of T. solocis provided by are Acrosternum marginatum (Palisot), Alcaeorrhynchus grandis (Dallas) Nezara viridula (L.) and Podisus maculiventris (Say).

Result

Overall, the rate of parasitism in deployed sentinel egg masses was low, accounting for only 5.6%. The percent parasitism per egg mass was about 47.7%. Immature parasitoid mortality of 25.4% per egg mass was observed. Of the immature parasitoids that died, 81.8% were in larval instars, 15.2% were in pre-pupae and 3% were in the pupal stage. About 22.3% parasitoids per egg mass emerged as adults. The female-biased sex ratio of 2F:1M was observed in emerged parasitoids.