Translator Disclaimer
1 May 2015 The Coffee Berry Borer (Coleoptera: Curculionidae): How Many Instars are There?
Jaime Gómez, Brenda Y. Chávez, Alfredo Castillo, Francisco J. Valle, Fernando E. Vega
Author Affiliations +
Abstract

After more than a century since the description of the coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae), and dozens of scientific articles on the basic biology of the insect, there is still debate on the number of female larval instars. This article analyzes the metamorphosis of H. hampei females through direct observations during its entire biological cycle in the laboratory, together with scanning electron microscope photos. Also, the size of the head capsule of wild larvae and prepupae was analyzed with Dyar's rule and a discriminant analysis was conducted. Only two instars were observed during H. hampei metamorphosis up to the adult stage. Contrasting morphological changes in the larvae occurred when they transformed into prepupae, with no previous ecdysis. The statistical analysis revealed that the width of the cephalic masses form two significantly distinct groups before transformation into pupa, confirming that the prepupal stage forms part of the second larval instar.

© The Authors 2015. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com
Jaime Gómez, Brenda Y. Chávez, Alfredo Castillo, Francisco J. Valle, and Fernando E. Vega "The Coffee Berry Borer (Coleoptera: Curculionidae): How Many Instars are There?," Annals of the Entomological Society of America 108(3), 311-315, (1 May 2015). https://doi.org/10.1093/aesa/sav009
Received: 1 September 2014; Accepted: 22 January 2015; Published: 1 May 2015
JOURNAL ARTICLE
5 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

Share
SHARE
KEYWORDS
bark beetle
BIOLOGY
broca del café
Hypothenemus
instar
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top