Occurrence of antennal glands in ants
Article first published online: 24 JUL 2008
Copyright © 2008 Wiley-Liss, Inc.
Microscopy Research and Technique
Volume 71, Issue 11, pages 787–791, November 2008
How to Cite
Renthal, R., Velasquez, D., Olmos, D. and Vinson, S. B. (2008), Occurrence of antennal glands in ants. Microsc. Res. Tech., 71: 787–791. doi: 10.1002/jemt.20620
- Issue published online: 24 OCT 2008
- Article first published online: 24 JUL 2008
- Manuscript Accepted: 27 MAY 2008
- Manuscript Received: 11 APR 2008
- NIH. Grant Number: G12 RR13646
- Texas Imported Fire Ant Research and Management Project
A previous report of the discovery of exocrine glands in the antennal club of queens and workers of Solenopsis invicta Buren, 1972 left open the question of the extent to which similar glands occur in the Formicidae family. We wanted to know if these antennal glands are unique to Solenopsis, or they are found in a wider taxonomic group. Using scanning electron microscopy, we examined the antennae of 41 ant species. Presence of the antennal glands was indicated by a characteristic circumferential ring of pores in a distal antennal segment of workers. Pores were found in the 9th antennal segment of all 26 species of Solenopsis examined. Pores were absent in the following: Monomorium minimum, M. pharaonis, Pheidole sp., Crematogaster sp., Linepithema humile, Forelius sp., Dorymyrmex sp., Paratrechina sp., Oecophylla smaragdina, Campanotus sp., Ectatomma ruidum, E. tuberlatum, and Pseudomyrmex ferruginea. However, pores were found in the antennal club of Tetramorium bicarinatum workers and queens. After KOH digestion of T. bicarinatum antennae, internal canals were observed in both workers and queens, and the canals are connected to spherical reservoirs in queens. T. bicarinatum was the only non-Solenopsis species examined, which showed evidence for antennal glands in the distal funiculus. Microsc. Res. Tech., 2008. © 2008 Wiley-Liss, Inc.