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Issue: Vol. 1503 No. 1: 11 Jun. 2007
Type: Articles
Published: 2007-06-11
DOI: 10.11646/zootaxa.1503.1.1
Page range: 1–11
Abstract views: 75
PDF downloaded: 22

On the immature stages of the crazy ant Paratrechina longicornis (Latreille 1802) (Hymenoptera: Formicidae)

Departamento de Biologia / UNESP. Address: 24A Avenue 1515 - Bela Vista CEP 13506-900 - Rio Claro, SP - Brazil
Departamento de Biologia / UNESP. Address: 24A Avenue 1515 - Bela Vista CEP 13506-900 - Rio Claro, SP - Brazil
Departamento de Biologia / UNESP. Address: 24A Avenue 1515 - Bela Vista CEP 13506-900 - Rio Claro, SP - Brazil
Departamento de Biologia / UNESP. Address: 24A Avenue 1515 - Bela Vista CEP 13506-900 - Rio Claro, SP - Brazil
Departamento de Biologia / UNESP. Address: 24A Avenue 1515 - Bela Vista CEP 13506-900 - Rio Claro, SP - Brazil
Laboratório de Histopatologia Vegetal / USP. Address: Centenário Avenue 303 - CEP 13400-970 -Piracicaba - SP - Brazil
Hymenoptera ant morphology larval instars Formicinae Paratrechina longicornis

Abstract

The ant Paratrechina longicornis is a cosmopolitan ant species that has been accidentally spread by commerce around the world, and now is a pest of houses and hospitals. The morphology of its larval stages has been previously described without knowledge of the number of instars. The present study revisits the original description of P. longicornis larvae by adding differences observed among the three larval instars. Compared to other Paratrechina species studied so far, P. longicornis presents smaller larvae, less evident variation in mandible morphology, and clear variation in the morphology of head hairs between the analysed specimens of the second and third instar larvae. Ultrastructural images of the eggs, larval spiracle ornamentation, and pupae are also presented for the first time.

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