Notes on Sex Ratio and Oviposition of Platyneuromus honduranus (Navás, 1928) in Chiapas, Mexico (Megaloptera, Corydalidae)

Alfredo Mayorga; Rafael Barba-Álvarez; Atilano Contreras-Ramos

doi:10.1674/0003-0031-178.2.284

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Alfredo Mayorga,¹ Rafael Barba-Álvarez,¹ Atilano Contreras-Ramos^1,*

¹Departamento de Zoología, Instituto de Biología, UNAM, Cd. Universitaria, 04510 México, D.F., Mexico

^*Corresponding author: Telephone (+52-55) 5622-9068; e-mail: acontreras@ib.unam.mx

Abstract

An event of numerous adults of Platyneuromus honduranus (Navás) gathering near the Usumacinta River in Chiapas state, Mexico, is reported. A sex ratio of 1:1.4 (male to female) was observed on a sample taken (n = 44), and it is compared to recorded sex ratios for other megalopteran species in the Sialidae and Chauliodinae. Oviposition far from the water is documented and discussed.

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Alfredo Mayorga, Rafael Barba-Álvarez, and Atilano Contreras-Ramos "Notes on Sex Ratio and Oviposition of Platyneuromus honduranus (Navás, 1928) in Chiapas, Mexico (Megaloptera, Corydalidae)," The American Midland Naturalist 178(2), 284-289, (1 October 2017). https://doi.org/10.1674/0003-0031-178.2.284

Received: 2 September 2016; Accepted: 1 March 2017; Published: 1 October 2017

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