Development of genital plates in nymphs of Triatoma pallidipennis, Stål 1872, (Hemiptera: Reduviidae) and its application as sexing method.
Searching for morphometric differences between sexes in immature forms, the development of genital plates in the exuviae of Triatoma pallidipennis Stål 1872 nymphs was studied. Differences were found in the form and size of the 9th genital urosternite, it is larger and wider in males as compared to females. This difference is reported in several South American Triatoma species. From our results it is possible to sex early stages from microscopic observation of genital plates in whole insects.
Laboratorio de Entomología Médica, Depto de Parasitología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Col Casco de Santo Tomás, México, DF, México.
Milton
M
Rodríguez-Sánchez
Ricardo
R
Alejandre-Aguilar
Benjamín
B
Nogueda-Torres
Alejandro D
AD
Camacho
Eliézer
E
Martín-Frías
D000704:Analysis of Variance; D000818:Animals; D005260:Female; D005835:Genitalia / Q000033:anatomy & histology / Q000254:growth & development*; D008297:Male; D009758:Nymph / Q000033:anatomy & histology / Q000254:growth & development; D012727:Sex Characteristics; D012732:Sex Determination Analysis / Q000379:methods / Q000662:veterinary*; D014224:Triatoma / Q000033:anatomy & histology / Q000254:growth & development*