Simulium (Psaroniocompsa) quadristrigatum Enderlein

Hernández, L. M. & Shelley, A. J., 2005, New specific synonymies and taxonomic notes on Neotropical blackflies (Diptera: Simuliidae), Zootaxa 853, pp. 1-46 : 9-10

publication ID

https://doi.org/ 10.5281/zenodo.170740

DOI

https://doi.org/10.5281/zenodo.6268762

persistent identifier

https://treatment.plazi.org/id/13328793-3D4F-FFA4-FEC8-6678FBB7FA38

treatment provided by

Plazi

scientific name

Simulium (Psaroniocompsa) quadristrigatum Enderlein
status

 

Simulium (Psaroniocompsa) quadristrigatum Enderlein View in CoL

(Figs. 15, 16, 42, 56, 70, 84)

Simulium quadristrigatum Enderlein, 1934a: 285 View in CoL –286. HOLOTYPE Ψ, BRAZIL: Paraná; [Without date or collector’s name.] (NMHU) [Examined.]

Enderlein (1934a) described S. quadristrigatum View in CoL based on a female collected in Paraná, Brazil. Coscarón (1983) examined the holotype, but because of its poor condition refrained from suggesting its conspecificity with S. delponteianum Wygodzinsky View in CoL or S.

chaquense Coscarón View in CoL , which have similar scutal patterns. He suggested that S. quadristrigatum View in CoL was more closely related to S. delponteianum View in CoL than to S. chaquense View in CoL due to the matt appearance of the silver bands on the thorax and of the frons, and coloration of the legs and wing length. He also advocated dissection of the holotype to assess the taxonomic status of S. quadristrigatum View in CoL .

The female of S. quadristrigatum View in CoL in the NMHU has been examined and labelled as the holotype and the head, wings, legs, and abdomen dissected and mounted on a slide. Two females from Paraguay studied by Enderlein in 1936 were also examined. The thoraxes of these two specimens are slightly damaged, but the thoracic pattern and leg coloration are the same as in the S. quadristrigatum View in CoL holotype. The head, wings, legs, and abdomen of these two specimens have been dissected and mounted on two separate slides. The holotype of S. quadristrigatum View in CoL is covered in fungus and pinned through the middle of the scutum. Nevertheless, the scutal pattern is clear enough for it to be identified as belonging to a species in the amazonicum View in CoL ­species group of the subgenus Psaroniocompsa Enderlein (Figs. 15, 16). Of the species in this group that have been recorded from Argentina, southern Brazil, and Paraguay, S. quadristrigatum View in CoL is most closely related to S. chaquense Coscarón View in CoL , S. cuneatum (Enderlein) View in CoL , and S. oyapockense Floch and Abonnenc View in CoL (species complex) in having the scutal pattern, cibarium (Fig. 42), leg coloration, wing length and setation, and genitalia all similar (Figs. 56, 70, 84). The latter three species are most reliably separated by the number of pupal gill filaments. In S. oyapockense View in CoL s.l. the pupa has six gill filaments, while S. chaquense View in CoL has eight and S. cuneatum View in CoL 10 filaments. Coscarón & Coscarón­Arias (2000) and Shelley et al. (1997, 2004; unpublished data) have shown that considerable variation occurs in the thoracic pattern of adults in species of the amazonicum View in CoL group (e.g., S. oyapockense View in CoL s.l. and S. amazonicum Goeldi View in CoL ) and the interpretation of this variation still requires considerable work.

We agree with Coscarón (1983, 1987) and maintain S. quadristrigatum View in CoL as species inquirendae, due to the difficulty in separating the females of species in the amazonicum View in CoL group that have not been reared. Coscarón (1987) placed S. quadristrigatum View in CoL in the subgenus Cerqueirellum Py­Daniel, which is treated as a synonym of the subgenus Psaroniocompsa by Crosskey & Howard (2004) and followed in this paper.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Simuliidae

Genus

Simulium

Loc

Simulium (Psaroniocompsa) quadristrigatum Enderlein

Hernández, L. M. & Shelley, A. J. 2005
2005
Loc

Simulium quadristrigatum

Enderlein 1934: 285
1934
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