262 
Psyche 
[June-September 
Discussion 
The sting apparatus of Terataner alluaudi bears most resemblance 
to several genera normally considered unrelated by most modern 
inyrmecologists. It has a variety of derived characters in common 
with Atopomyrmex mocquerysi, such as: shape of the anal plate; 
form of the gonostyli; long, flagelliform lancets (Fig. 215 ); form of 
the bulb, valve chamber and shaft of the sting, including 2 prongs 
extending into the sting bulb from the internal apophysis (Figs. 216, 
217). These species, however, differ markedly in the shapes of the 
spiracular and oblong plates, and in the lack of a furcula and anal 
setae in A. mocquerysi. With the Cephalotini, T. alluaudi shares the 
following characters: complete medial connection of the anterior 
apodeme of the spiracular plate (may not be derived); anal plate 
wider than long and with numerous dorsal sensilla; long, well- 
defined fulcral arm of the oblong plate; gonostylus shape and 
setation (Fig. 192); shape of the lancets (Fig. 194); sting bulb shape, 
low valve chamber and flagellate sting shaft as in Procryptocerus 
scabriusculus (Figs. 196, 197). The main differences are the shape of 
the spiracular plate (Fig. 198); and in T. alluaudi the lack of the long 
pollicate anterodorsal process of the quadrate plate (Figs. 189, 198), 
the furcula not appressed to the sting base, the more elongate sting 
shaft containing a hernocoel, and the prongs in the sting bulb (cf. 
Figs. 190, 191, 196, 197). With Cataulacus tardus, T. alluaudi shares 
the medial connection of the spiracular plate anterior apodernes; the 
shape and setation of the gonostyli; flagelliform lancets (though 
much shorter in C. tardus); and prongs in the sting bulb (the number 
of which is different, Figs. 203, 204). Such prongs are known only 
from Terataner, Atopomyrmex and Cataulacus. 
Both Emery (1922) and Wheeler (1922) placed Terataner in the 
tribe Myrinecinini with Podomyrma, Lordomyrma, Atopomyrmex, 
Myrmecina, Pristomyrmex and Acanthomyrmex, along with other 
genera, the stings of which have not yet been examined. Emery more 
specifically placed it with the first 3 genera in the subtribe Podo- 
myrmiti after earlier creating the genus Terataner from some of the 
species then in Atopomyrmex (Emery, 1912). The sting apparatus 
does not support the groupings of the above genera into tribe 
Myrmecinini (see also discussions in Kugler, 1978), but the view of 
Terataner and Atopomyrmex as distinct, related genera is seen here 
as likely. Sting apparatus morphology also suggests a relationship 
