Onirion Peyton & Harbach, 2000

NEOTROPICAL REGION

Family
Subfamily
Tribe

Generic abbreviation: On.

Type species: Dendromyia personata Lutz (In Bourroul, 1904).

Etymology: Derived from the Greek Oneiros (m.), dream or vision.

The Neotropical genus Onirion comprises seven species: On. aenigma Harbach, On. brucei (del Ponte & Cerqueira), On. celatum Peyton & Harbach, On. imparis Peyton & Harbach, On. personatum (Lutz), On. regale Peyton & Harbach, and On. sirivanakarni (Duret). Onirion species most closely resemble Wyeomyia species. The long cercal setae arising from the male proctiger are diagnostic characters of Onirion species.

 

DIAGNOSTIC CHARACTERS  (Click photo to zoom in.)

ADULT (illustrated): Head: Head scales broad and flat. Thorax: Silvery-white scales on lower part of head, antepronotum, postpronotum, pleuron and C-I–III. Legs: Ta-II,III with white scales on at least one tarsomere. Abdomen: Abdominal scales broad and flat; dark scales sometimes with slight blue iridescence; terga dark; sterna with distinct white scaling in a well-demarcated line.

LARVA (not illustrated): Thorax: Setae 4-P and 7-T with distinct aciculae on one side; seta 11-T short with distinct sharp branches. Terminal segments: Pecten filamentous; numerous setae along length of siphon.

 

TAXONOMIC KEYS

Harbach & Peyton 2000

WRBU LUCID KEYS

 

adult mosquito key icon

WRBU – Genera – Global – Adult

larval key icon

WRBU – Genera – Global – Larva

adult mosquito key icon

WRBU – Genera – Neotropical – Adult

larval key icon

WRBU – Genera – Neotropical – Larva

Exemplar DNA sequences

Onirion sp. stA COI: MF172340–44

All Onirion DNA sequences

 

BIONOMICS

Immatures

Onirion immatures are found in water collections in ground bromeliads, and bamboo habitats. Larvae of On. imparis were collected in bamboo internodes in the Yasuní National Park, eastern Ecuador.

Adults

Closely associated with tropical forest habitats, the bionomics of many species remain elusive. Adults are diurnal—ovipositing and host-seeking during the day— and several Onirion species will attack people in the forest. Onirion personatum are often collected in baited  CDC traps in the southeastern Atlantic forest, Brazil, suggesting it would also be attracted to large mammals. In São Paulo, Brazil, On. personatum was collected laden with eggs of the human botfly, Dermatobia hominis.

Associated Pathogens

 

IMPORTANT REFERENCES (full citations below)

Harbach & Peyton 2000: 118 (as genus, key, phylogeny)

Harbach et al. 2007b (phylogeny)

Motta et al. 2007 (molecular phylogeny)

 

VALID SUBGENERA

None

 

CURRENT GENERIC SYNONYMS

None

 

CITED REFERENCES

Bourroul, C. (1904). Mosquitos do Brasil. Faculdade de Medicina da Bahia, 78pp.

Harbach, R.E., & Peyton, E.L. (2000). Systematics of Onirion, a new genus of Sabethini (Diptera: Culicidae) from the Neotropical region. Bulletin of the Natural History Museum London (Entomology), 69, 115–159.

Harbach, R.E., Huong, V.E., & Kitching, I.J. (2007b). Systematics of Kimia, a new genus of Sabethini (Diptera: Culicidae) in the Oriental Region. Proceedings of the Entomological Society of Washington, 109(1), 102–120.

Motta, M.A., Lourenço-de-Oliveira, R., & Sallum, M.A.M. (2007). Phylogeny of genus Wyeomyia (Diptera: Culicidae) inferred from morphological and allozyme data. Canadian Entomologist, 139(5), 591–627.

 

CITE THIS PAGE

Walter Reed Biosystematics Unit (Year). Onirion genus page. Walter Reed Biosystematics Unit Website, http://wrbu.si.edu/vectorspecies/genera/onirion, accessed on [date (e.g. 03 February 2020) when you last viewed the site].