Simulium angulistylum Takaoka and Davies 1995

Phasuk, J., Chanpaisaeng, J., Adler, P. H. & Courtney, G. W., 2005, Chromosomal and morphological taxonomy of larvae of Simulium (Gomphostilbia) (Diptera: Simuliidae) in Thailand, Zootaxa 1052, pp. 49-60 : 51

publication ID

https://doi.org/ 10.5281/zenodo.170004

DOI

https://doi.org/10.5281/zenodo.5657617

persistent identifier

https://treatment.plazi.org/id/F61F9002-FFE3-794B-BD64-E930B8FADC26

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Plazi (2016-04-04 05:59:33, last updated 2024-11-26 23:52:17)

scientific name

Simulium angulistylum Takaoka and Davies 1995
status

 

Simulium angulistylum Takaoka and Davies 1995 View in CoL

This species was originally described based on the female, male, pupa, and mature larva from West Malaysia ( Takaoka and Davies 1995). The gill has eight short, slender filaments arranged in groups of 3 + 3 + 2 from dorsal to ventral ( Fig. 3 View FIGURE 3 A). Larvae can be identified by the presence of delicate setae with 5–12 (mostly 8–10) branches on abdominal segments V–VIII ( Fig. 2 View FIGURE 2 A).

The polytene chromosomes of this species were figured by Kuvangkadilok et al. (2003), although chromosomes II and III were reversed. In the present study, 15 of 62 larvae were analyzed for major landmarks. The centromere regions of chromosomes I and II are slightly expanded, but the centromere region of chromosome III is not expanded. In the IIS arm, the bulge is central and the ring of Balbiani subterminal ( Fig. 1 View FIGURE 1 A).

Kuvangkadilok, C., Boonkemtong, C., Phayuhasena, S. & Baimai, V. (2003) Larval polytene chromosomes of black flies (Simulium) from Thailand: I. Comparison among five species in the subgenus Gomphostilbia Enderlein. Genetica, 118, 69 - 81.

Takaoka, H. & Davies, D. M. (1995) The Black Flies (Diptera: Simuliidae) of West Malaysia. Kyushu University Press, Fukuoka, Japan, 175 pp.

Gallery Image

FIGURE 1. Idiograms of chromosome arm IIS for 12 Simulium species in subgenus Gomphostilbia from Khao Yai National Park, showing relative locations of Ce, centromere; RB, ring of Balbiani; Bu, bulge; Sh, shoestring. A, Simulium angulistylum. B, S. decuplum. C, S. dentistylum. D, S. gombakense. E, S. siamense. F, S. sp. A. G, S. asakoae. H, S. sheilae. I, S. sp. nr. sheilae. J, S. novemarticulatum. K, S. sp. B. L, S. sp. C.

Gallery Image

FIGURE 2. Photographs of setae on abdominal cuticle of Simulium species in subgenus Gomphostilbia. A, Simulium angulistylum. B, S. decuplum. C, S. dentistylum. D, S. siamense. E, S. sp. A. F, S. asakoae. G, S. sheilae. H, S. sp. nr. sheilae. I, S. novemarticulatum. J, S. sp. B.

Gallery Image

FIGURE 3. Photographs of gill filaments of Simulium species in subgenus Gomphostilbia. A, Simulium angulistylum. B, S. sp. A. C, S. novemarticulatum. D, S. siamense. E, S. sheilae. F, S. sp. nr. sheilae.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Simuliidae

Genus

Simulium