Simulium

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 : 58-59

Simulium sp. C

The number and arrangement of gill filaments of this species are similar to those of S. asakoae , S. sheilae , and S. sp. nr. sheilae . However, the larva differs by having the thoracic and abdominal segments nearly bare of setae.

Six of 7 larvae were analyzed for the major landmarks. The centromere bands were faint and the centromere regions were not expanded. In the IIS arm, the ring of Balbiani and bulge were subterminal ( Figure 1 L).

Figures

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.