Sussaba pulchella

(Holmgren, 1858)

Sussaba pulchella is a small ichneumonid in the Diplazontinae, with forewings approximately 4 mm in length. It is the first in its to have a high-quality sequenced, completed as part of the Darwin Tree of Life project. The species is a of hoverfly larvae (Diptera: Syrphidae) and has a broad geographic distribution across the Palaearctic, Nearctic, and India.

Pronunciation

How to pronounce Sussaba pulchella: //suːˈsɑːbɑː pʊlˈkɛlə//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Distinguished from by male tyloid color and shape, which are -specific. The laterally compressed metasoma may indicate to in concealed . Identification to species level typically requires examination of male antennal structures.

Appearance

Small with forewing length approximately 4 mm. Metasoma laterally compressed. Males possess tyloids—raised ovoid cuticular areas on antennal flagellomeres—used in courtship. Male tyloids have -specific color and shape that aid in identification.

Habitat

Frequently collected by sweep netting in woodland environments. Specimen for sequencing was collected in Wytham Woods, Bert's Pheasant Pen, England, UK. The laterally compressed body form suggests possible association with root-dwelling or otherwise concealed .

Distribution

Widespread across Britain; global range encompasses much of the Palaearctic, Nearctic, and India. Documented from Belgium, Canada (Calgary, Edmonton, Gull Lake), and the United Kingdom.

Host Associations

  • Syrphidae - ofSpecific stage preference unknown but expected to be or early instar based on related

Life Cycle

Diplazontines emerge from but oviposit in either the of the syrphid host (in developing embryo), early instar larva, or mid-instar larva. Exact host stage for S. pulchella not directly observed.

Behavior

Males coil their around female antennae during courtship, using the tyloids in this process. The is frequently collected by sweep netting, suggesting active movement in vegetation.

Ecological Role

of hoverfly larvae, likely contributing to regulation of syrphid in where both occur.

Human Relevance

sequenced as part of the Darwin Tree of Life project, representing the first high-quality genome for the Sussaba. Genome assembly: 299.91 Mb with 81.88% scaffolded into 15 chromosomal pseudomolecules; mitochondrial genome 34.69 kb.

Similar Taxa

  • Sussaba flavipesPublished records from Sphaerophoria scripta attributed to S. pulchella are probable misidentifications of S. flavipes

Misconceptions

Published records from Sphaerophoria scripta are likely erroneous and probably represent misidentifications of Sussaba flavipes rather than S. pulchella.

More Details

Genome Resources

First high-quality for Sussaba; assembly size 299.91 Mb, 81.88% scaffolded into 15 chromosomal pseudomolecules, mitochondrial genome 34.69 kb. Specimen collected from Wytham Woods, England, UK.

Taxonomic Note

Belongs to Diplazontinae within Ichneumonidae. The Sussaba is part of a group of diplazontine specialized on hoverfly .

Tags

Sources and further reading