Abstract
We investigated the sexual dimorphism in wing shape in Synneuria sp., using the tools of geometric morphometries. This species, which has taxonomic problems, has a limited geographic distribution. In the spring and summer of 2006-2007 we collected 63 males and 58 females in farms named "El Guindo (36°50'12"W - 73°01'25"S) and Coyanmahuida" (36°49'28.66"S - 72°44'1.34"W) in the province of Concepción, Biobio Region of Chile. We photographed the right wing of each individual and constructed a photographic matrix in which we digitalized 18 morphological landmarks based on the shape and vein pattern of the wing. A multivariate factorial analysis of wing shape showed significant differences between sexes (F = 4.237; p= <0.05) but not among localities (F = 0.169; p= >0.05), in which the sectorized landmarks indicated large contributions to wing shape in the matrix R #7:0.49945 and #8: 0.46818. The geometric variation demonstrated that the points in the bases of the radial veins were key characters to differentiate between sexes.
| Original language | English |
|---|---|
| Pages (from-to) | 53-60 |
| Number of pages | 7 |
| Journal | Journal of the Entomological Research Society |
| Volume | 13 |
| Issue number | 1 |
| Publication status | Published - 2011 |
Keywords
- Geometric morphometric
- Interpopulation
- Moths
- Phenotype
- Sexual shape dimorphism
- Wing shape