FURTHER STUDIES OF THE MYRMICINE STING 
APPARATUS: EUTETRAMOR1UM, OXYOPOMYRMEX, 
AND TERATANER (HYMENOPTERA, FORMICIDAE)* 
By Charles Kugler 
Department of Entomology 
Cornell University 
Ithaca, New York 14853 
Introduction 
In an earlier investigation (Kugler, 1978, 1979) I described the 
sting apparatus of representatives of 63 genera of myrmicine ants. In 
so doing, it was shown that this complex structure has clear 
potential for defining myrmicine genera and perhaps generic group- 
ings. Furthermore, its morphology may have played an important 
role in the evolution of some genera. 
Here I present descriptions of members of 3 genera that could not 
be included in that work. Structural affinities with the sting appa- 
ratus of other genera are discussed in order to assist those reclassify- 
ing this taxonomically problematical subfamily. 
Methods 
The materials and methods used are described in detail in Kugler 
(1978). For the sake of brevity, figures from that earlier study are 
cited here in italics; new figures of this paper are cited in Roman 
type. Voucher specimens are deposited in the Harvard Museum of 
Comparative Zoology, labeled “Kugler study 1978.” Scale lines in 
the figures are in millimeters. 
Eutetra morium 
Species examined: E. mocquerysi, 2 workers. 
Spiracular plate: (Fig. 1) Body subtriangular, only slightly longer 
than wide. Anterior apodeme wide along nearly whole length, end- 
ing abruptly near dorsal margin of plate. Ventral and posterior 
*A report of research of the Cornell Agricultural Experiment Station, New York 
State College of Agriculture and Life Sciences at Cornell University, Ithaca, New 
York 14853. 
Manuscript received by the editor September 15, 1978. 
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