Abstract
To carried out this study, three stations were chosen These are Texenna, Kissir and Jijel.11 parameters were taken into account for each individual: Total body Length TL, Length of Elytra EL, Length of Femur FL, Width of Femur FW, Width of Head HW, Width of Pronotum PW, Total Femoral Area TFA and Area of Femoral Spots AFS as well as comparisons of FL / FW, EL / FL, and TFA/AFS. In order to analyze the results, the following statistical parameters are used: correlation and conformity test, regression line, and analysis of variance. The correlation between different parameters was initially low, then average, and finally strong. The conformity test gives values obst > t 0.95 between FL/ FW in the females of Texenna and between the males in the 3stations. The same observation is made for the EL/FL in females in the 3 stations and in Texenna males. The difference is not significant between these 2 parameters. The conformity test gave values obs t <t 0.95 for FL/FW only in females from Kissir and Jijel and between EL/FL in males from Kissir and Jijel. Difference is slightly significant. For TFA/AFS, the test indicates a significant difference for males of Kissir and Jijel but a non-significant difference in both females of Texenna and Jijel. Moreover, the linear regression shows that the 3 populations are homogeneous from the point of view of EL/FL, FL/FW, and TFA/AFS couples. Analysis of variance showed that the Fisher statisticF observed is higher than the theoretical F. Despite their apparent differences in size (8 out of 11 parameters gave non-significant differences), we can conclude that the 3 populations living in the Jijel region belong all to a single homogeneous group: the form with 3 femoral spots showing a clear heterogeneity with that of semi-arid bioclimate who contain individuals with big size and having only one femoral spot.
Highlights
In Algeria, there are only two species of the genus Calliptamus
The objective of this study is to determine the degree of differentiation and variation of C. barbarus, of the stands of the Jijel region between them, and to know through morphometry, if the specimens living in this region are all small and homogeneous and belonging to the form with 3 femoral spots or on the contrary, there are, among this population, large specimens belonging to the form with 1 femoral spot Classical morphometry aims to highlight the correlations between the sizes of the different organs of the insect's body and to emphasize the degree of variability between populations
BodyMeasurements: The results on body size measurements for males and females of C. barbarus in the Texenna, Kissir, and Jijel populations are summarized in appendix1
Summary
In Algeria, there are only two species of the genus Calliptamus. These are C. wattenwylianus (Pantel, 1896) and. barbarus (Costa, 1836) (Chara, 1987). C. barbarus, is a species with a strong chromatic polymorphism in its posterior femurs. The color of the latter is qualified by Chopard (1943), Jago (1963), and Larrosa et al (2008) ruby red, with distinct and well-marked femoral spots, or pale yellow or orange, with a single large. The pronotum has a flat shape with two well-marked right lateral carinae and a median keel which carries three transverse furrows (Chopard, 1943) It is a fairly large species of 15 to 24 mm for males and 24 to 40 mm for females. According to Jago (1963), this species has a wide geographic distribution It is widespread mainly in North Africa and the Near East (COPR, 1982). It has been observed in Italy by Fontana et al, (2002) and in France (Claridge and Singhrao, 1978)
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