Volume 89, Issue 4
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



The present study focused on spermatophore structure, transfer, and subsequent destination inside bloodfeeding females of the species and . The morphology of the spermatophore differed between the species studied, such that in , the shape was ovaloid, whereas in , the shape resembled a rod. Structures' spine-like cuticulars distributed across the inner surface of the vagina of both species were observed; however, the role of these cuticulars is unknown in Triatominae. In both species, there was an opening in the spermatophore exactly where the common oviduct is connected, thereby making it possible to confirm that the process of spermatozoid migration takes place through this opening. The results obtained show that the spermatophores of and differ in size, shape, and structure. Therefore, they can be used as taxonomic markers and may provide information regarding physiology and evolution.


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  • Received : 13 Mar 2013
  • Accepted : 15 Jul 2013
  • Published online : 09 Oct 2013

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