422 
Psyche 
[December 
ual; a small eye is shown arising from beneath a scrobe-like head 
groove, and elongate mandibles are suggested in vague outline. The 
10-segmented antenna is depicted by Emery with a clearly 2-merous 
club and an apically thickened and sharply bent scape. 
The amber piece has now been cleaned, partly re-ground, and 
somewhat cleared by injection of a small amount of Canada balsam. 
Figures 1 and 2 are photographs of the Hypopomyrmex bombiccii 
type, a winged queen, in the new preparation. The specimen is badly 
shrivelled and compressed, especially from side to side, and the 
petiolar and postpetiolar nodes are strongly compressed anteropos- 
teriorly. It can now be seen that the Strumigenys-\ike cranial shape 
portrayed by Emery is really only his free interpretation of the 
crumpled head; the deformed left eye protrudes from the dorso- 
lateral margin of the head, not from any scrobe, and the mandibles 
do not extend as Emery’s figure 11 vaguely suggests they do. The 
right side view (fig. 2) of the head now available shows the right 
compound eye also distorted, but larger, more elliptical and less 
protruding than the left eye. The right antennal scape has its apex 
flattened, but not sharply bent like that of the left scape, indicating 
that the latter was distorted after death. 
Hypopomyrmex is clearly not a member of tribe Dacetini . Habi- 
tus, wing venation and the form of the waist do place it in the 
subfamily Myrmicinae. The 10-merous antennae with 2-merous 
club, the forewing venation and the propodeal teeth make it most 
likely a member of the group of genera near Pheidologeton, and it 
may be regarded as a doubtful synonym of Oligomyrmex. The 
taxonomy of the living forms of this group is still so poorly known, 
and the fossil is in such poor condition that formal synonymy here 
would be premature. 
It may be noted, however, that Oligomyrmex sophiae ( —Aero - 
myrma sophiae ), based on male specimens, was described by Emery 
from the Sicilian Amber in the same (1891) paper. 
With the removal of Hypopomyrmex from the Dacetini, that 
tribe loses its entire known fossil history. 
Sicilomyrmex corniger 
Gesomyrmex corniger Emery 1891:581, pi. 3, fig. 33-35, worker. 
This extraordinary formicine is portrayed in the photographs 
(figs. 3 and 4). Emery originally assigned it to Gesomyrmex, but the 
bicornuate head and two-spined propodeum clearly put it into a 
